JPS5953139A - Reciprocating mechanism of machine tool - Google Patents
Reciprocating mechanism of machine toolInfo
- Publication number
- JPS5953139A JPS5953139A JP16373682A JP16373682A JPS5953139A JP S5953139 A JPS5953139 A JP S5953139A JP 16373682 A JP16373682 A JP 16373682A JP 16373682 A JP16373682 A JP 16373682A JP S5953139 A JPS5953139 A JP S5953139A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- chambers
- cylinder
- hydraulic oil
- cylinder chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、金属・木材・プラスチック等を切削加工する
工作機に関し、特に刃物又は被加工物を支持して、これ
を往復動させる往復運動機構に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machine tool for cutting metal, wood, plastic, etc., and particularly to a reciprocating mechanism that supports a blade or a workpiece and reciprocates it.
従来におけるこの種の往復運動機構は、作動ロッドが単
に同一軸心上を往復運動するのみであった。In conventional reciprocating mechanisms of this type, the operating rod simply reciprocates on the same axis.
このため、作動ロッドの端部に例えば刃物を取付けた場
合、この刃物は同じ線上を往復動することになる。Therefore, if a cutter is attached to the end of the actuating rod, for example, the cutter will reciprocate on the same line.
これは、作動ロッドの往動時に被加工物を切削した場合
、該ロッドの復動時に初加工物の切削面を傷付ける、い
わゆる返えり傷を発生することになる。This means that when a workpiece is cut when the actuating rod moves forward, the cutting surface of the first workpiece is damaged when the rod moves backward, ie, so-called return scratches occur.
これを防止するためには、作動ロッドの復動時に刃物を
切削面から退避させるための退壁機構を設けるか、ある
いは被加工物を作動ロンドの復動時に刃物から退避させ
るための退壁機構を設ける必要がある。In order to prevent this, a retreating wall mechanism is provided to retract the cutter from the cutting surface when the actuating rod moves back, or a retracting wall mechanism is provided to retract the workpiece from the cutter when the actuating rod moves back. It is necessary to provide
従来では、」二記退避機構として、」−記往復運動機構
あるいは上記刃物を載置横送りテーブルを設け、該横送
りテーブルを作動することにより上記返えり傷を防止す
るようにしていた。Conventionally, as the evacuation mechanism, a reciprocating mechanism or a transverse table on which the cutter is mounted has been provided, and the above-mentioned burrs are prevented by operating the transverse table.
これは、高価になるとともに、装置が大型になる欠点が
あった。This has the disadvantage that it becomes expensive and the device becomes large.
本発明は、上記実情に鑑みなされたものであり、シリン
ダの作動ロッドとの摺動部に互いに対向する油室を設け
るとともに、これら油室に作動ロッドの往復動に関連し
て、交互に作動油を供給し、これにより作動ロッドその
ものを往復動と同時に横移動させることにより、安価か
つ小型にして被加工物の切削面を傷付けないようにする
ことを目的とする。The present invention has been made in view of the above-mentioned circumstances, and includes providing oil chambers facing each other in the sliding portion of the cylinder with the operating rod, and in which the oil chambers are alternately operated in relation to the reciprocating movement of the operating rod. The purpose is to supply oil and thereby cause the actuating rod itself to reciprocate and move laterally at the same time, thereby making it inexpensive and compact and preventing damage to the cutting surface of the workpiece.
本発明は上記目的を達成するために、刃物又は被加工物
が支持された作動ロッドをフレームに固定したシリンダ
に遊嵌し、シリンダの作動ロッドとの摺動部に該シリン
ダの軸心に対して互いに対向する位置に油室を形成し、
作動ロッドの往復動に関連して０１１記各油室に交げに
作動油を供給する給油装置を設ける構成にした点に特徴
がある。In order to achieve the above object, the present invention has a working rod on which a cutter or a workpiece is supported, which is loosely fitted into a cylinder fixed to a frame, and a sliding part of the cylinder with the working rod is arranged relative to the axis of the cylinder. oil chambers are formed at positions facing each other,
A feature of the present invention is that an oil supply device is provided to alternately supply hydraulic oil to each oil chamber in connection with the reciprocating movement of the operating rod.
以下本発明の構成が、具体化された実施例を図面に従っ
て詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples in which the structure of the present invention is embodied will be described in detail below with reference to the drawings.
第１図は竪型旋盤をなす工作機に、本発明の往復運動機
構を適用した要部断面図を示すもので、フレーム１の頭
部にシリンダ２を一体的に設け、該シリンダ２は大径の
シリンダ室３とこれの上下端に連なる小径のシリンダ室
４・５と１３ ）
を同軸に有する。FIG. 1 shows a cross-sectional view of the main parts of a vertical lathe machine tool to which the reciprocating mechanism of the present invention is applied. It has a large diameter cylinder chamber 3 and small diameter cylinder chambers 4, 5 and 13) connected to the upper and lower ends thereof coaxially.
上記シリンダｚ内には、作動ロッド６を上下方向に摺動
可能に嵌挿する。この作動口・ンドは、大径のピストン
７とこれの上下端に連なる小径のロッド８・９とを同軸
かつ一体に有し、大径のピストン７は前記大径のシリン
ダ室３に、また小径のロッド８・９は前記小径のシリン
ダ室４・５にそれぞれ嵌挿している。The actuating rod 6 is fitted into the cylinder z so as to be slidable in the vertical direction. This operating port/end has a large diameter piston 7 and small diameter rods 8 and 9 connected to the upper and lower ends thereof coaxially and integrally, and the large diameter piston 7 is connected to the large diameter cylinder chamber 3 and The small diameter rods 8 and 9 are fitted into the small diameter cylinder chambers 4 and 5, respectively.
そして、上記ピストン７、ロッド８・９の各外径は、こ
れらが嵌挿する大径のシリンダ室３、小径のシリンダ室
４ｏ５の各内径よりも０．０３ｍｍ〜０．０４１ｎｍ程
度小径に形成しておく。The outer diameters of the piston 7 and rods 8 and 9 are approximately 0.03 mm to 0.041 nm smaller than the inner diameters of the large-diameter cylinder chamber 3 and small-diameter cylinder chamber 4o5 into which they are inserted. I'll keep it.
また、小径のシリンダ室４・５の中間部には、第２図に
示すようにシリンダ軸心に対して左右に対向する油室１
０・１１を形成する。In addition, in the middle part of the small-diameter cylinder chambers 4 and 5, there is an oil chamber 1 that faces left and right with respect to the cylinder axis, as shown in FIG.
Form 0.11.
そして左側の」−下の油室１０・１０は、大径のシリン
ダ室３上部に作動油を供給する第１油路１２に並列接続
し、また上記右側の上下の油室１１０１１は、大径のシ
リンダ室３下部に作動油を供給する第２油路１３に並列
接続する。The lower oil chambers 10 and 10 on the left side are connected in parallel to the first oil passage 12 that supplies hydraulic oil to the upper part of the large-diameter cylinder chamber 3, and the upper and lower oil chambers 11011 on the right side are It is connected in parallel to a second oil passage 13 that supplies hydraulic oil to the lower part of the cylinder chamber 3.
（４）
上記第１油路１２は第１三方弁１４を介して、ポンプ１
６と油タンク１７とに接続し、また上記第２油路１３は
第２三方弁１５を介して、ポンプ１６と油タンク１７と
に接続する。(4) The first oil passage 12 is connected to the pump 1 via the first three-way valve 14.
6 and an oil tank 17, and the second oil passage 13 is connected to a pump 16 and an oil tank 17 via a second three-way valve 15.
上記第１・第２三方弁１４・１５は、第１ ′？ＩＩ＋
路１２がポンプ１６に連通した際には、第２油路１３が
油タンク１７と連通し、第２油路１３がポンプ１６に連
通した際には、第１油路１２が油タンク１７と連通ずる
ように連動させておく 。The first and second three-way valves 14 and 15 are the first and second three-way valves 1'? II+
When the passage 12 communicates with the pump 16, the second oil passage 13 communicates with the oil tank 17, and when the second oil passage 13 communicates with the pump 16, the first oil passage 12 communicates with the oil tank 17. Let's link them so that they are connected.
なお、図中１８は大径のピストン７に取付けたオイルシ
ール、１９は小径のシリンダ室４・５壁に取付けたオイ
ルシールである。In the figure, 18 is an oil seal attached to the large-diameter piston 7, and 19 is an oil seal attached to the walls of the small-diameter cylinder chambers 4 and 5.
」１記作動ロッド６の下端、つまり下部側ロッド９の下
端には、バイトからなる刃物２０を固定する。この刃物
２０は作動ロッド６の右側に突出配置し、該刃物２０の
右方に配置した被加工物２１の左端に当接させる。上記
被加工物２１は、竪配置されたスピンドル（図示省略）
に取付けたコレットチャック２２によって挾持回転され
る。1. A cutter 20 consisting of a cutting tool is fixed to the lower end of the operating rod 6, that is, the lower end of the lower rod 9. This cutter 20 is arranged protrudingly on the right side of the operating rod 6, and is brought into contact with the left end of a workpiece 21 arranged on the right side of the cutter 20. The workpiece 21 has a vertically arranged spindle (not shown).
It is clamped and rotated by a collet chuck 22 attached to the collet chuck 22.
また、作動ロッド６は、その上部に取付けたキー２３を
フレームｌ側のキー溝２４に係合させることにより回転
ｄ二めされている。Further, the actuating rod 6 is rotated twice by engaging a key 23 attached to the upper part of the actuating rod 6 with a key groove 24 on the frame l side.
つまり、右側の油室１１に対応する側の作動ロッド６上
部にキー２３を固定し、シリンダ２の頭部に固定したケ
ーシング２５に上記キー２３を嵌合するキー溝２４を」
二下方向に延出形成する。なお、第１図中２６はケーシ
ング２５の頂部に形成した呼吸口である。In other words, a key 23 is fixed to the upper part of the operating rod 6 on the side corresponding to the oil chamber 11 on the right side, and a key groove 24 is formed in which the key 23 fits into the casing 25 fixed to the head of the cylinder 2.
2. Formed to extend downward. Note that 26 in FIG. 1 is a breathing port formed at the top of the casing 25.
次に上記実施例の作用について説明する。まずスピンド
ル２２を回転して、被加工物２１を回転する。次いで図
示省略の作動スイッチをオンすれば、第１・第２三方弁
１４・１５が作動されて、第１油路１２がポンプ１６に
第２油路１３が油タンク１７に連通ずる。さすれば、ポ
ンプ１６により第１油路１２を介して、作動油が大径の
シリンダ室３上部室および左側の油室１０・１０に流入
して行くことになる。Next, the operation of the above embodiment will be explained. First, the spindle 22 is rotated to rotate the workpiece 21. Next, when an operation switch (not shown) is turned on, the first and second three-way valves 14 and 15 are operated, and the first oil passage 12 communicates with the pump 16 and the second oil passage 13 communicates with the oil tank 17. Then, the hydraulic oil will flow into the upper chamber of the large diameter cylinder chamber 3 and the left oil chambers 10 through the first oil passage 12 by the pump 16.
これにより、作動ロッド６は、油室１０・１０内で生起
される作動油の油圧により第１・第２図において実線で
示すように右方に移動されるとともに、シリンダ室３上
部室で生起される作動油の油圧により、下方に移動され
る。As a result, the actuating rod 6 is moved to the right as shown by the solid line in FIGS. 1 and 2 due to the hydraulic pressure of the hydraulic oil generated in the oil chambers 10, It is moved downward by the hydraulic pressure of the hydraulic oil.
これにより、刃物２０が右方に移動した状態で下降し、
回転している被加工物２１外周面を切削加工する。As a result, the blade 20 moves to the right and descends.
The outer peripheral surface of the rotating workpiece 21 is cut.
上記刃物２０、従って作動ロッド６が所定位置まで下降
すると、図示省略のリミットスイッチが作動し、前述し
た第１・第２王方弁１４・１５が作動されて、第１油路
１２が油タンク１７に第２油路１３がポンプ１６に連通
する。When the cutter 20 and therefore the operating rod 6 are lowered to a predetermined position, a limit switch (not shown) is activated, the first and second king valves 14 and 15 are activated, and the first oil passage 12 is connected to the oil tank. The second oil passage 13 communicates with the pump 16 at 17 .
さすれば、ポンプ１６からの作動油が第２油路１３を介
して、大径のシリンダ室３下部室および右側の油室１１
・１１に流入して行く。Then, the hydraulic oil from the pump 16 passes through the second oil passage 13 to the lower chamber of the large diameter cylinder chamber 3 and the right oil chamber 11.
・It flows into 11.
これにより、作動ロッド６は、油室１１・１１内で生起
される油圧により第１０第２図において左方に移動され
るとともに、シリンダ室３下部室で生起される油圧によ
り上方に移動される。As a result, the actuating rod 6 is moved to the left in FIG. 10, FIG. .
これにより、刃物２０が左方に移動した状態（ｒｌ） で上昇する。As a result, the blade 20 is moved to the left (rl) rises.
このため、刃物２０の」１昇に際しては、該刃物２０が
被加工物２１の切削面から離間することになる。Therefore, when the blade 20 is raised by 1, the blade 20 is separated from the cutting surface of the workpiece 21.
ここで、前述の切削時には、作動ロッド６に回転方向の
反力が生ずるが、この反力はキー２３・キー溝２４が受
は持つことになるので、該作動ロッド６は回転すること
はない。Here, during the above-mentioned cutting, a reaction force in the rotational direction is generated on the actuation rod 6, but this reaction force is received by the key 23 and the keyway 24, so the actuation rod 6 does not rotate. .
また、ポンプ１６を介して作動油が第１油路１２に供給
され、作動ロッド６が右動および下動する際には、右側
の油室１１・１１およびシリンダ室３下部室の過剰とな
った作動油は、第１油路１２および右側の三方弁１５を
介して油タンク１７に戻され、逆にポンプ１６を介して
作動油が第２油路１３に供給され、作動ロッド６が左動
および」１動した際には、左側の油室１０・１０および
シリンダ室３上部室の過剰となった作動油が、第１油路
１２および左側の三方弁１４を介して油タンク１７に戻
される。Further, when hydraulic oil is supplied to the first oil passage 12 via the pump 16 and the operating rod 6 moves rightward and downward, the right oil chambers 11 and 11 and the lower chamber of the cylinder chamber 3 become overfilled. The hydraulic oil is returned to the oil tank 17 via the first oil passage 12 and the three-way valve 15 on the right side, and conversely, the hydraulic oil is supplied to the second oil passage 13 via the pump 16. When the oil chambers 10 and 10 on the left side and the upper chamber of the cylinder chamber 3 move, excess hydraulic oil is transferred to the oil tank 17 via the first oil passage 12 and the three-way valve 14 on the left side. be returned.
さらに、作動ロッド６の」二下動に略しては、（８）
各油室１０・１１およびシリンダ室３に供給される作動
油によって潤滑される。Furthermore, the downward movement of the operating rod 6 is (8) lubricated by the hydraulic oil supplied to each oil chamber 10, 11 and the cylinder chamber 3.
本発明は、以上説明したように、シリンダの作動ロッド
との摺動部に互いに対向する油室を設けるとともに、こ
れら油室に作動ロッドの往復動に関連して交げに作動油
を供給する構成にしたから、作動ロッドのシリンダとの
嵌合しろを利用して、作動ロンドそのものを横移動する
ことができ、安価かつ小型にして被加工物の切削面の損
傷を防１１Ｚすることができる効果を奏する。なお、本
発明においては、相対向する油室への作動油の供給油路
を大径のシリンダ室への作動油の供給油路と分離するよ
うにしてもよい。As explained above, the present invention has a structure in which oil chambers are provided in the sliding portion of the cylinder and the actuating rod, and which are opposed to each other, and hydraulic oil is alternately supplied to these oil chambers in connection with the reciprocating movement of the actuating rod. Because of this, the actuating rod itself can be moved laterally by using the fitting allowance between the actuating rod and the cylinder, which has the effect of being inexpensive and small and preventing damage to the cutting surface of the workpiece. play. Note that, in the present invention, the hydraulic oil supply passage to the opposing oil chambers may be separated from the hydraulic oil supply passage to the large-diameter cylinder chamber.
このようにすれば、作動ロッドを左右方向に押圧する力
と作動ロンドを上下方向に押圧する力とを任意に設定す
ることができる。In this way, the force for pressing the actuating rod in the left-right direction and the force for pressing the actuating rod in the up-down direction can be arbitrarily set.
第１図は本発明における往復運動機構を適用した工作機
の要部断面図、第２図はそのｎ−１断面図である。
１− フレーム、 ２− シリンダ、３−大径のシ
リンダ室、
４・５−小径のシリンダ室、
６−作動ロッド、
７−大径のピストン、
８・９−ロッド、
１０の１１−油室、
１２−第１油路、
１３ 二第２油路、
１４−第１三方弁、
１５１第２三方弁、
１６−ポンプ、 １７−泊タンク、１８・１９−
オイルシール、
２〇 −刀物、
２１−被加工物、
２２−コレットチャック、
２３− キー、 ２４− キー溝、２５−ケーシン
グ、
２６−呼吸口。
出願代理人 松 本 久FIG. 1 is a cross-sectional view of a main part of a machine tool to which the reciprocating mechanism of the present invention is applied, and FIG. 2 is a cross-sectional view taken along line n-1. 1-Frame, 2-Cylinder, 3-Large diameter cylinder chamber, 4/5-Small diameter cylinder chamber, 6-Working rod, 7-Large diameter piston, 8/9-Rod, 11 of 10-Oil chamber, 12-first oil path, 13-second second oil path, 14-first three-way valve, 151 second three-way valve, 16-pump, 17-night tank, 18/19-
Oil seal, 20-Knife, 21-Workpiece, 22-Collet chuck, 23-Key, 24-Keyway, 25-Casing, 26-Breathing port. Application agent Hisashi Matsumoto
Claims (1)
ームに固定したシリンダに遊嵌し、シリンダの作動ロッ
ドとの摺動部に該シリンダの軸心に対して互いに対向す
る油室を形成し、作動ロッドの往復動に関連して前記各
油室に交互に作動油を供給する給油装置を設けてなる工
作機における往復運動機構。1. An operating rod on which a cutter or workpiece is supported is loosely fitted into a cylinder fixed to a frame, and oil chambers are formed in the sliding portion of the cylinder and the operating rod to face each other with respect to the axis of the cylinder. A reciprocating mechanism for a machine tool, comprising an oil supply device that alternately supplies hydraulic oil to each of the oil chambers in connection with the reciprocating movement of the operating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16373682A JPS5953139A (en) | 1982-09-20 | 1982-09-20 | Reciprocating mechanism of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16373682A JPS5953139A (en) | 1982-09-20 | 1982-09-20 | Reciprocating mechanism of machine tool |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11946585A Division JPS60259343A (en) | 1985-05-31 | 1985-05-31 | Device for pressing reciprocating actuator against slide surface in machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5953139A true JPS5953139A (en) | 1984-03-27 |
| JPS6121782B2 JPS6121782B2 (en) | 1986-05-28 |
Family
ID=15779691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16373682A Granted JPS5953139A (en) | 1982-09-20 | 1982-09-20 | Reciprocating mechanism of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5953139A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0264579U (en) * | 1988-11-02 | 1990-05-15 | ||
| JPH0510386U (en) * | 1991-07-16 | 1993-02-09 | 松岡コンクリート工業株式会社 | Concrete product hanging clamp |
-
1982
- 1982-09-20 JP JP16373682A patent/JPS5953139A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6121782B2 (en) | 1986-05-28 |
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