JPS6213861A - Screw feed device - Google Patents
Screw feed deviceInfo
- Publication number
- JPS6213861A JPS6213861A JP15090485A JP15090485A JPS6213861A JP S6213861 A JPS6213861 A JP S6213861A JP 15090485 A JP15090485 A JP 15090485A JP 15090485 A JP15090485 A JP 15090485A JP S6213861 A JPS6213861 A JP S6213861A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- feed screw
- rotation
- screw
- feeding device
- 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
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/408—Nut bearings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H2025/2445—Supports or other means for compensating misalignment or offset between screw and nut
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、送りねじの回転により可動台を移動させるね
し送り装置、特に送りねじに螺合するナツトを送りねじ
の軸線に直角な面内でフローチングできるようにしたね
じ送り装置に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a screw feed device that moves a movable base by rotation of a feed screw, and in particular, a screw feed device that moves a movable base by rotation of a feed screw. This invention relates to a screw feed device that can float within the screw feed device.
〈従来の技術〉
一般に、基台上に摺動可能に装架された可動台を送りね
じの回転により移動させるようにしたねし送り装置にお
いては、送りねじに螺合するナツトが可動台に固定され
ている。この種の送り装置においては、送りねじの振れ
、芯出し誤差等により可動台が蛇行し、送りの真直性を
阻う問題がある。<Prior art> Generally, in a screw feed device in which a movable base that is slidably mounted on a base is moved by rotation of a feed screw, a nut that is screwed onto the feed screw is attached to the movable base. Fixed. In this type of feeding device, there is a problem that the movable base meanderes due to vibration of the feed screw, centering error, etc., which impedes the straightness of feeding.
かかる問題を解決するために、ナツトを送りねじの軸線
に直角な面内でフローチングできるようにしたものは、
例えば特公昭５８−２５９０６号公報に記載されている
ように公知である。このものにおいては、送りねじの軸
線に直角な面内において互いに直交する各一対の平行な
弾性板対、すなわち平行ばねによってナツトを移動台に
フローチング可能に支持している。In order to solve this problem, the nut can be floated in a plane perpendicular to the axis of the feed screw.
For example, it is publicly known as described in Japanese Patent Publication No. 58-25906. In this device, the nut is floatably supported on the movable table by a pair of parallel elastic plates, that is, parallel springs, which are perpendicular to each other in a plane perpendicular to the axis of the feed screw.
〈発明が解決しようとする問題点〉
上記した構成のものによれば、ナツトのフローチングに
より送りねじの振れや芯出し誤差等に拘らず送りの真直
性を向上し得る。<Problems to be Solved by the Invention> According to the structure described above, the straightness of feeding can be improved due to floating of the nut, regardless of run-out of the feed screw, centering error, etc.
しかしながら、フローチング式のナツトにおいて留意す
べき点は、送りねじの回転によるナツトの回転を確実に
拘束でき、かつ送りねじの回転によるナツトの推力を可
動台に確実に伝達できることにあり、これが送り精度を
左右する大きな要素となる。However, what should be noted about floating nuts is that the rotation of the nut due to the rotation of the feed screw can be reliably restrained, and the thrust of the nut due to the rotation of the feed screw can be reliably transmitted to the movable base. This is a major factor that affects accuracy.
そこで上記した従来のものを考°察すると、従来のもの
は、ナットのフローチング作用と、ナツトの回転拘束作
用と、ナットからの推力伝達作用の全てを平行ばねによ
り行う構成であるため、上記した３つの作用をそれぞれ
満足させることが甚だ難しい問題がある。特に平行ばね
のものにおいては、送りねじの回転によりナツトに伝え
られる回転トルクにより板ばねがその平面内で撓みを生
じてナツトが自転し、そのために送りねじの回転による
運動が可動台に正確に伝えられず、特に超精密加工を必
要とする研削盤等においてこれが問題となる。Therefore, considering the above-mentioned conventional device, the conventional device has a structure in which all of the floating action of the nut, the rotational restraint action of the nut, and the thrust transmission action from the nut are performed by parallel springs. There is a problem in that it is extremely difficult to satisfy each of the three effects. Particularly in the case of parallel springs, the rotational torque transmitted to the nut by the rotation of the feed screw causes the plate spring to deflect in its plane, causing the nut to rotate, and therefore the movement caused by the rotation of the feed screw is accurately directed to the movable base. This becomes a problem especially in grinding machines that require ultra-precision machining.
〈問題点を解決するための手段〉
本発明は上記した従来の問題点を解消し、送り精度の一
層の向上を図ることを目的とするもので、その構成は、
送りねじに螺合するナツトを送りねじの軸線に直交する
面内においてフローチング可能に可動台に支持するフロ
ーチング機構を、送りねじの回転によるナツトの回転を
拘束する回転拘束部材と、送りねじの回転によるナツト
の推力を可動台に伝達する推力伝達部材とによって構成
したのもである。<Means for Solving the Problems> The present invention aims to solve the above-mentioned conventional problems and further improve feeding accuracy, and its configuration is as follows:
A floating mechanism that supports a nut screwed onto the feed screw on a movable base so that it can float in a plane orthogonal to the axis of the feed screw, a rotation restraint member that restrains rotation of the nut due to rotation of the feed screw, and a feed screw. and a thrust transmission member that transmits the thrust of the nut caused by the rotation of the nut to the movable table.
上記の回転拘束部材は、送りねじの回転平面に平行な面
内に配置された円周方向に連なる可撓部を備え、この可
撓部は送りねじの軸線に直角な面内において、軸線方向
に離間した互いに直交する２つのスリットの形成によっ
て成形し得る。。The above-mentioned rotational restraint member includes a flexible portion arranged in a circumferential direction in a plane parallel to the rotation plane of the feed screw, and this flexible portion extends in an axial direction in a plane perpendicular to the axis of the feed screw. It can be formed by forming two mutually orthogonal slits spaced apart. .
また回転拘束部材としてダイヤフラムカップリングを用
いることができ、このダイヤフラムカップリングは、連
結軸の両端に送りねじの回転面内と平行な面内に配置さ
れたダイヤフラムの内周縁もしくは外周縁を固着し、こ
のうちの一方のダイヤフラムの外周縁もしくは円周縁を
可動台側に結合し、他方のダイヤフラムの外周縁もしく
は内周縁にナツトを結合した構成をなす。Further, a diaphragm coupling can be used as a rotation restraining member, and this diaphragm coupling fixes the inner or outer circumferential edge of a diaphragm arranged in a plane parallel to the rotational plane of the feed screw to both ends of the connecting shaft. , the outer or circumferential edge of one of the diaphragms is coupled to the movable table side, and a nut is coupled to the outer or inner circumferential edge of the other diaphragm.
さらに回転拘束部材として金属ベローズを用いることも
できる。Furthermore, a metal bellows can also be used as the rotation restraint member.
〈実施例〉 以下本考案の実施例を図面に基づいて説明する。<Example> Embodiments of the present invention will be described below based on the drawings.
第１図におよび第２図において、１０は基台としての研
削盤のベッドを示し、このベッド１０上に形成されたＶ
、手業内面１０ａ、１０ｂに可動台としてのテーブル１
１が摺動可能に装架されている。ベッド１０には送りね
じ１２が案内面１０ａ。1 and 2, reference numeral 10 indicates a bed of a grinding machine as a base, and V formed on this bed 10
, a table 1 as a movable table is mounted on the inner surfaces 10a and 10b for manual work.
1 is slidably mounted. A feed screw 12 is provided on the bed 10 as a guide surface 10a.
１０ｂに平行な軸線のまわりに回転可能に軸承され、こ
の送りねじ１２の一端に回路のサーボモータが連結され
ている。前記テーブル１１の下面には取付プレート１３
が固着され、この取付プレート１３に前記送りねじ１２
にボールを介して螺合するナツト１５が、後述するよう
に送りねじ１２の軸線に直角な面内でフローチング可能
に支持される。The feed screw 12 is rotatably supported around an axis parallel to the feed screw 10b, and a servo motor of the circuit is connected to one end of the feed screw 12. A mounting plate 13 is provided on the underside of the table 11.
is fixed, and the feed screw 12 is fixed to this mounting plate 13.
A nut 15 screwed into the feed screw 12 through a ball is supported so as to be floating within a plane perpendicular to the axis of the feed screw 12, as will be described later.
以下前記ナツト１５をフローチング支持するフローチン
グ機構について説明する。The floating mechanism for floatingly supporting the nut 15 will be described below.
２０は送りねじ１２が貫通する円筒状のフローチング体
を示し、このフローチング体２０の一端は前記取付プレ
ート１３に固着され、フローチング体２０の他端にナッ
ト１５のフランジ部１５ａが固設されている。フローチ
ング体２０の両端部には薄肉円板状の可撓部２１，２２
が送りねじ１２の回転面内と平行に配置されている。か
かる可撓部２１．２２は、フローチング体２０に２つの
スリン）２３．２４および２５．２６を軸線方向に僅か
にずらして互いに直交する方向に刻設することによって
形成される。つまり薄肉円板状の可撓部２１，２２は、
第３図にも示すように両端部を互いに直角な直径方向の
剛性をもつ連結内部２１ａ、２１ｂおよび２２ａ、２２
ｂにて支持された形状をなす。これによってフローチン
グ体２０は、テーブルｌｌ側に固定された一端部２０Ａ
と、ナツト１５側に固定された他端部２０Ｂと、これら
両者の間に前記可撓部２１．２２を介して連結された中
央部２０Ｇとで構成される。Reference numeral 20 indicates a cylindrical floating body through which the feed screw 12 passes, one end of the floating body 20 is fixed to the mounting plate 13, and the flange portion 15a of the nut 15 is fixed to the other end of the floating body 20. has been done. Thin disc-shaped flexible parts 21 and 22 are provided at both ends of the floating body 20.
are arranged parallel to the rotational plane of the feed screw 12. Such flexible portions 21.22 are formed by carving two sills 23.24 and 25.26 on the floating body 20 in directions orthogonal to each other with slight axial shifts. In other words, the thin disc-shaped flexible parts 21 and 22 are
As shown in FIG. 3, the connecting inner parts 21a, 21b and 22a, 22 have both ends perpendicular to each other and have rigidity in the diametrical direction.
It forms a shape supported by b. As a result, the floating body 20 has one end 20A fixed to the table ll side.
, the other end portion 20B fixed to the nut 15 side, and a central portion 20G connected between these two via the flexible portions 21 and 22.
かかる構成のフローチング体２０は、２つの可撓部２１
．２２の弾性変形によりその中央部２０Ｃが傾動でき、
送りねじ１２に対するナツト１５の芯違いを吸収できる
ようになる。しかも可撓部２１、．２２は送りねじ１２
の回転平面と平行な面内に配置された円板状をなすもの
であるので、ねじり剛性がきわめて高く、送りねじ１２
の回転によるナラ）１５０回転を確実に拘束する。反面
可撓部２ｔ、２２は送りねじ１２の回転によるナツト１
５の推力をテーブル１１に伝達する機能に難点がある。The floating body 20 having such a configuration has two flexible parts 21.
．． Due to the elastic deformation of 22, the central part 20C can be tilted,
It becomes possible to absorb the misalignment of the nut 15 with respect to the feed screw 12. Moreover, the flexible portion 21, . 22 is the feed screw 12
Since it is in the shape of a disk arranged in a plane parallel to the plane of rotation of the feed screw 12, it has extremely high torsional rigidity.
150 rotations are reliably restrained. On the other hand, the flexible parts 2t and 22 are connected to the nut 1 by rotation of the feed screw 12.
There is a difficulty in the function of transmitting the thrust of 5 to the table 11.
上記したフローチング体２０により、ナツト１５を送り
ねじ１２の軸線に直角な面内でフローチング可能に支持
し、かつ送りねじ１２の回転によるナツト１５の回転を
拘束する回転拘束部材を構成している。The floating body 20 described above constitutes a rotation restraining member that supports the nut 15 in a floating manner in a plane perpendicular to the axis of the feed screw 12 and restrains the rotation of the nut 15 due to the rotation of the feed screw 12. There is.
３０はタイバーを示し、このタイバー３０は前記取付プ
レート１３に固設された支持ブラケット３１とナツト１
５のフランジ部１５ａとの間の直径方向２か所に送りね
じ１２の軸線と平行に配置され、それら両端部は支持ブ
ラケット３１およびフランジ部１５ａにそれぞれボルト
締めされている。タイバー３０には両端２か所に細径の
可撓部３２．３３が形成され、かかる可撓部３２，３３
によって前述したナツト１５の送りねじ１２の軸線に直
角な面内でのフローチングを許容し、かつ送りねじ１２
の回転によるナツト１５の推力をテーブル１１に伝達す
る機能をもっている。上記したタイバー３０により、送
りねじ１２の軸線に直角な面内でのナツト１５のフロー
チングを許容しながら、送りねじ１２の回転によるナッ
ト１５の推力をテーブル１１に伝達する推力伝達部材を
構成している。30 indicates a tie bar, and this tie bar 30 is connected to a support bracket 31 fixed to the mounting plate 13 and a nut 1.
The feed screw 12 is arranged parallel to the axis of the feed screw 12 at two locations in the diametrical direction between the feed screw 12 and the flange portion 15a of the feed screw 12, and both ends thereof are bolted to the support bracket 31 and the flange portion 15a, respectively. The tie bar 30 has two small diameter flexible parts 32 and 33 formed at both ends.
This allows the nut 15 described above to float in a plane perpendicular to the axis of the feed screw 12, and
It has a function of transmitting the thrust of the nut 15 due to the rotation of the nut 15 to the table 11. The tie bar 30 described above constitutes a thrust transmission member that transmits the thrust of the nut 15 due to the rotation of the feed screw 12 to the table 11 while allowing the nut 15 to float in a plane perpendicular to the axis of the feed screw 12. ing.
このようにナツト１５をフローチング支持するうえで重
要な、ナツト１５の回転拘束機能と推力伝達機能を互い
に独立した別個の部材２０．３０によって具現化したこ
とにより、それぞれの機能に適した構成を採り得るよう
になり、それらの機能を精度よく達成することが可能と
なる。In this way, the rotational restraint function and the thrust transmission function of the nut 15, which are important in floatingly supporting the nut 15, are realized by separate members 20 and 30 that are independent from each other, so that a configuration suitable for each function can be achieved. It becomes possible to achieve these functions with high precision.
上記した構成において、送りねじ１２に螺合するナツト
１５は、回転拘束部材２ｏと推力部材３０とからなるフ
ローチング機構により支持されてているため、回路のサ
ーボモータによって駆動される送りねじ１２に振れが生
じていても、その振れに応じてナツト１５がフローチン
グし、しかも送りねじ１２の回転に伴うナツト１５の回
転を回転拘束部材２０によって確実に拘束するとともに
、送りねじ１２の回転によるナツト１５の推力を推力伝
達部材３０によってテーブル１１に確実に伝達できるよ
うになる。In the above configuration, the nut 15 that is screwed onto the feed screw 12 is supported by a floating mechanism consisting of the rotation restraint member 2o and the thrust member 30, so that the nut 15 that is screwed onto the feed screw 12 is Even if runout occurs, the nut 15 floats according to the runout, and the rotation of the nut 15 due to the rotation of the feed screw 12 is reliably restrained by the rotation restraining member 20, and the nut 15 is prevented from rotating due to the rotation of the feed screw 12. 15 thrust can be reliably transmitted to the table 11 by the thrust transmission member 30.
第４図は本発明の他の実施例を示すもので、回転拘束部
材をダイヤフラムカップリング４ｏにより構成したもの
である。FIG. 4 shows another embodiment of the present invention, in which the rotation restraint member is constituted by a diaphragm coupling 4o.
同図において、取付プレート１３には第１のダイヤフラ
ム４１の外周縁を固着した支持ブラケット４２が固着さ
れ、第１のダイヤフラム４１の内周縁は筒状の連結軸４
３の一端に固着されている。In the figure, a support bracket 42 is fixed to the mounting plate 13, and the inner circumferential edge of the first diaphragm 41 is attached to a cylindrical connecting shaft 4.
It is fixed to one end of 3.
連結軸４３の他端には第２のダイヤフラムの内周縁が固
着され、この第２のダイヤフラム４１の外周縁を固着し
た取付体４５にナツト１５が固着されている。かかる構
成のダイヤフラムカップリング４０の２つのダイヤフラ
ム４１．４４の弾性変形により、送りねじ１２に対する
ナツト１５の芯違いを吸収する。The inner circumferential edge of a second diaphragm is fixed to the other end of the connecting shaft 43, and the nut 15 is fixed to a mounting body 45 to which the outer circumferential edge of the second diaphragm 41 is fixed. The elastic deformation of the two diaphragms 41 and 44 of the diaphragm coupling 40 having such a configuration absorbs the misalignment of the nut 15 with respect to the feed screw 12.
この実施例のものにおいても、送りねじ１２の回転平面
と平行な面内に配置された円板状の可撓部（ダイヤフラ
ム４１．４４）により、送りねじ１２の回転に伴うナツ
ト１５の回転拘束を確実に行い得る。In this embodiment as well, the rotation of the nut 15 as the feed screw 12 rotates is restrained by the disk-shaped flexible portion (diaphragm 41, 44) arranged in a plane parallel to the rotation plane of the feed screw 12. can be done reliably.
第５図は本発明のさらに他の実施例を示すもので、回転
拘束部材を金属ベローズ５０で構成したものである。こ
の金属ベローズ５０は断面波形の所要巻数の可撓部５１
をもち、この可撓部５１は先に述べた実施例と同様に、
ねじり剛性がきわめて高く、しかるに軸方向および角度
方向に対しては弾性特性を発揮する。このように金属ベ
ローズ５０により、ナフト１５を送りねじ１２の軸線に
直角な面内でフローチング可能に支持し、かつ送りねじ
１２の回転によるナフト１５の回転を拘束する。FIG. 5 shows still another embodiment of the present invention, in which the rotation restraint member is constructed of a metal bellows 50. This metal bellows 50 has a flexible section 51 having a required number of turns with a corrugated cross section.
This flexible portion 51 has the same structure as in the previously described embodiment.
It has extremely high torsional rigidity and exhibits elastic properties in the axial and angular directions. In this way, the metal bellows 50 supports the napft 15 so that it can float in a plane perpendicular to the axis of the feed screw 12, and restrains the rotation of the napft 15 due to the rotation of the feed screw 12.
〈発明の効果〉
以上述べたように本発明によれば、送りねじに螺合する
ナツトを送りねじの軸線に直角な面内でフローチングで
きるようにしたので、送りねじの振れおよび芯出し誤差
を吸収でき、可動台の蛇行を防止して送りの真直性を向
上できる効果がある。<Effects of the Invention> As described above, according to the present invention, the nut screwed onto the feed screw can float in a plane perpendicular to the axis of the feed screw, thereby reducing run-out and centering errors of the feed screw. This has the effect of preventing meandering of the movable base and improving the straightness of feed.
しかも本発明によれば、ナツトをフローチング可能に支
持するフローチング機構が、互いに独立した機能をもつ
回転拘束部材と推・力伝達部材とで構成されているので
、送りねじの回転によるナツトの回転拘束機能および送
りねじの回転によるナツトの推力を可動台に伝達する推
力伝達機能のそれぞれの精度を向上でき、送りねじの回
転角に対する可動台の送り精度をきわめて向上できる効
果がある。Furthermore, according to the present invention, the floating mechanism that supports the nut in a floating manner is composed of a rotation restraining member and a thrust/force transmitting member that have independent functions, so that the nut can be moved by rotation of the feed screw. It is possible to improve the accuracy of each of the rotation restraint function and the thrust transmission function that transmits the thrust of the nut due to the rotation of the feed screw to the movable base, and has the effect of greatly improving the feeding accuracy of the movable base with respect to the rotation angle of the feed screw.
図面は本発明の実施例を示すもので、第１図はねじ送り
装置を示す図、第２図は第１図の■矢視図、第３図は第
１図の■−■線矢視断面図、第４図は本発明の他の実施
例を示す図、第５図は本発明のさらに他の実施例を示す
図である。
ｌＯ・・・基台（ベッド）、１１・・・可動台（テーブ
ル）、１２・・・送りねじ、１５・・・ナツト、２０，
４０．５０・・・回転拘束部材、２１．２２・・・可撓
部、３０・・・推力伝達部材。The drawings show an embodiment of the present invention, and FIG. 1 shows a screw feeding device, FIG. 2 shows a view taken from the ■ arrow in FIG. 1, and FIG. 3 shows a view taken from the ■-■ line in FIG. A sectional view, FIG. 4 is a diagram showing another embodiment of the present invention, and FIG. 5 is a diagram showing still another embodiment of the present invention. lO...Base (bed), 11...Movable base (table), 12...Feed screw, 15...Nut, 20,
40.50... Rotation restraint member, 21.22... Flexible portion, 30... Thrust transmission member.
Claims (7)
持させ、このナットに螺合する送りねじの回転により可
動台を移動させるようにしたねじ送り装置において、前
記ナットを前記送りねじの軸線に直交する面内において
フローチング可能に前記可動台に支持するフローチング
機構を設け、このフローチング機構は、前記送りねじの
回転によるナットの回転を拘束する回転拘束部材と、前
記送りねじの回転によるナットの推力を前記可動台に伝
達する推力伝達部材とによって構成してなるねじ送り装
置。(1) A screw feeding device in which a nut is supported on a movable base that is slidably mounted on a base, and the movable base is moved by rotation of a feed screw that is screwed into the nut. A floating mechanism is provided that is supported on the movable base so as to be floating in a plane perpendicular to the axis of the feed screw, and the floating mechanism includes a rotation restraining member that restrains rotation of the nut due to rotation of the feed screw; and a thrust transmission member that transmits the thrust of the nut due to the rotation of the feed screw to the movable base.
な面内に配置されかつ円周方向に連なる可撓部を少なく
とも軸方向２か所に備えてなる特許請求の範囲第１項に
記載のねじ送り装置。(2) The rotation restraining member is provided with flexible portions arranged in a plane parallel to the rotational plane of the feed screw and continuous in the circumferential direction at at least two locations in the axial direction. Screw feeding device as described.
直角な面内において、軸線方向に離間した互いに直交す
る２つのスリットの刻設によって形成してなる特許請求
の範囲第２項に記載のねじ送り装置。(3) The flexible portion of the rotation restraint member is formed by carving two mutually orthogonal slits spaced apart in the axial direction in a plane perpendicular to the axis of the feed screw. The screw feeding device described in .
ダイヤフラムと、ナットに結合される第２のダイヤフラ
ムを連結軸の両端に固着してなる特許請求の範囲第２項
に記載のねじ送り装置。(4) The rotation restraint member is configured by fixing a first diaphragm coupled to a movable table and a second diaphragm coupled to a nut to both ends of a connecting shaft. Screw feeding device.
る特許請求の範囲第２項に記載のねじ送り装置。(5) The screw feeding device according to claim 2, wherein the rotation restraining member is made of a metal bellows.
りねじの軸線方向に配置された可撓部をもつタイバーか
らなっている特許請求の範囲第１項に記載のねじ送り装
置。(6) The screw feeding device according to claim 1, wherein the thrust transmission member is a tie bar having a flexible portion arranged in the axial direction of the feed screw between the movable table and the nut.
もつ特許請求の範囲第６項に記載のねじ送り装置。(7) The screw feeding device according to claim 6, wherein the tie bar has small diameter flexible portions at two locations in the axial direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15090485A JPS6213861A (en) | 1985-07-09 | 1985-07-09 | Screw feed device |
| DE19863623112 DE3623112A1 (en) | 1985-07-09 | 1986-07-09 | Spindle-nut feed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15090485A JPS6213861A (en) | 1985-07-09 | 1985-07-09 | Screw feed device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6213861A true JPS6213861A (en) | 1987-01-22 |
| JPH0570746B2 JPH0570746B2 (en) | 1993-10-05 |
Family
ID=15506924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15090485A Granted JPS6213861A (en) | 1985-07-09 | 1985-07-09 | Screw feed device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6213861A (en) |
| DE (1) | DE3623112A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0435204A2 (en) * | 1989-12-25 | 1991-07-03 | Toyoda Koki Kabushiki Kaisha | Screw-nut feed mechanism |
| FR2661465A1 (en) * | 1990-04-27 | 1991-10-31 | Aerospatiale | DEVICE FOR TEMPORARY MECHANICAL ASSEMBLY AND QUICK SEPARATION OF AN OBJECT TO BE EJECTED LINKED TO A SUPPORT. |
| CN112124634A (en) * | 2020-09-07 | 2020-12-25 | 兰州空间技术物理研究所 | Micro flow storage and supply device for colloid propeller |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787260A (en) * | 1987-04-20 | 1988-11-29 | Cincinnati Milacron Inc. | Self-alignment device for ballscrew arrangement |
| US4779473A (en) * | 1987-06-01 | 1988-10-25 | Ncr Corporation | Gimbal apparatus for translating rotational motion to accurate linear motion |
| DE3833577A1 (en) * | 1988-10-03 | 1990-04-05 | Zeiss Carl Fa | DRIVE FOR LINEAR GUIDED MACHINE PARTS |
| FR2663700B1 (en) * | 1990-06-22 | 1992-10-09 | Aerospatiale | HIGH PRECISION ROTATION COUPLING DEVICE AND TRANSLATION CONTROL DEVICE COMPRISING SAME, ESPECIALLY FOR AN OPTICAL SPATIAL INSTRUMENT. |
| US5392662A (en) * | 1993-09-20 | 1995-02-28 | Eastman Kodak Company | Leadscrew coupler |
| DE102008058161A1 (en) | 2008-11-12 | 2010-05-20 | Ex-Cell-O Gmbh | Machine tool with floating support means |
| DE102012010632B4 (en) * | 2012-04-30 | 2024-02-08 | Physik Instrumente GmbH & Co. KG | Adjusting device for carrying out an adjusting movement by means of a drive spindle and application system with such an adjusting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590244A (en) * | 1978-12-25 | 1980-07-08 | Tsugami Corp | Table feed mechanism of nc machine tool |
| JPS5825906A (en) * | 1981-08-07 | 1983-02-16 | 橋本電機工業株式会社 | Standard-size cutter in veneer lateral barking machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3398598A (en) * | 1966-10-28 | 1968-08-27 | Bendix Corp | Motion translation device |
| DD214324A1 (en) * | 1983-03-24 | 1984-10-10 | Werkzeugmasch Okt Veb | FASTENING DEVICE FOR THE BOLT NUT OF A BALL SCREW DRIVE |
-
1985
- 1985-07-09 JP JP15090485A patent/JPS6213861A/en active Granted
-
1986
- 1986-07-09 DE DE19863623112 patent/DE3623112A1/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590244A (en) * | 1978-12-25 | 1980-07-08 | Tsugami Corp | Table feed mechanism of nc machine tool |
| JPS5825906A (en) * | 1981-08-07 | 1983-02-16 | 橋本電機工業株式会社 | Standard-size cutter in veneer lateral barking machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0435204A2 (en) * | 1989-12-25 | 1991-07-03 | Toyoda Koki Kabushiki Kaisha | Screw-nut feed mechanism |
| US5140863A (en) * | 1989-12-25 | 1992-08-25 | Toyoda Koki Kabushiki Kaisha | Screw-nut feed mechanism |
| FR2661465A1 (en) * | 1990-04-27 | 1991-10-31 | Aerospatiale | DEVICE FOR TEMPORARY MECHANICAL ASSEMBLY AND QUICK SEPARATION OF AN OBJECT TO BE EJECTED LINKED TO A SUPPORT. |
| CN112124634A (en) * | 2020-09-07 | 2020-12-25 | 兰州空间技术物理研究所 | Micro flow storage and supply device for colloid propeller |
| CN112124634B (en) * | 2020-09-07 | 2023-12-22 | 兰州空间技术物理研究所 | Micro-flow storage and supply device for colloid propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0570746B2 (en) | 1993-10-05 |
| DE3623112A1 (en) | 1987-01-22 |
| DE3623112C2 (en) | 1989-05-18 |
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