JPS58113653A - Ball-and-screw unit - Google Patents
Ball-and-screw unitInfo
- Publication number
- JPS58113653A JPS58113653A JP20984581A JP20984581A JPS58113653A JP S58113653 A JPS58113653 A JP S58113653A JP 20984581 A JP20984581 A JP 20984581A JP 20984581 A JP20984581 A JP 20984581A JP S58113653 A JPS58113653 A JP S58113653A
- Authority
- JP
- Japan
- Prior art keywords
- ball screw
- ball
- bed
- bearing
- right sides
- 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
-
- 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
-
- 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
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ＮＯ工作機械や精密計測機器などの送ｃｉｉ
＊に使用される所謂ボールナツトの雄ねじか形ｉ！爆れ
るボールねじ軸にｆｆニー１１ｒ＆ｆｊ隔ｔおｉて。[Detailed Description of the Invention] The present invention provides transportation of NO machine tools, precision measuring instruments, etc.
* The so-called ball nut male screw type used for i! Place ff knee 11r & fj distance t on the exploding ball screw shaft.
左ねじと右ねじか形成されると共に、該ボールねじ軸に
はナツトのサポートベアリングが左右にそれぞれ嵌合さ
れ、練サポートベアリングの一刀かベッド側に麹万か移
動テーブル側に固定されることによって移動テープ〃貴
はベッド側に対して高逼送シ、ｉＬ＜は低逐送シを可能
ならしめたボールねじユニットに関する。A left-hand thread and a right-hand thread are formed, and the support bearings of the nut are fitted on the left and right sides of the ball screw shaft, respectively, and the support bearings are fixed on the bed side and the movable table side. The moving tape relates to a ball screw unit that enables high transport and iL < to the bed side with low transport.
通常使用逼れて―るボールねじは第８図に示すねじ軸３
に同方向、同ピツチの雄ねじ４が形成され、ｗ！雄ねじ
４の正逆転によりナラ）５１１１ｉｌか前進めるいは後
退することができるのみであるから。The normally used ball screw is the screw shaft 3 shown in Figure 8.
A male thread 4 of the same direction and pitch is formed in w! This is because it can only be moved forward or backward by rotating the male screw 4 in the forward or reverse direction.
ナツト貴のヌビード鯛整はモーター の回転数による。Natsuto Takashi's nuveed sea bream adjustment depends on the rotation speed of the motor.
上記モーター の回転ａｔ−変えることなく高速送υが
必要な場合にはボールねじに太きいリード角を形成せね
はならない。If high-speed feed is required without changing the rotation speed of the motor, a large lead angle must not be formed in the ball screw.
ところが、ナツトの内溝研削が不可能にして高精度か得
られない、また、太きいリード角であると、推力が小δ
く、その位瀧決め精度が悪ｉ等の欠点を有する。However, it is impossible to grind the inner groove of the nut, making it difficult to obtain high precision, and if the lead angle is large, the thrust force is small.
However, it has drawbacks such as poor position determination accuracy.
不発明の技術的課電はリード角を小さくすることによシ
ポールねじのユニットの位澹決め精度が２倍以上よくな
ると共に推力かよくなり、またボールねじ軸の限界回転
数ｔアップすることもなく、移動−のナラＦのスピード
を高速若しくは低速することかできると共に移動側のナ
ツトかサポートベアリングを兼ねることにおる。The uninvented technical charge is that by reducing the lead angle, the positioning accuracy of the Sipol screw unit is more than doubled, the thrust is improved, and the limit rotation speed of the ball screw shaft does not increase. The speed of the moving nut F can be made high or slow, and the nut on the moving side also serves as a support bearing.
上紀技術的課ｉｉｔ解決する文めの本発明の構成すなわ
ち技術的手段は次のとおシでめる。The structure of the present invention, that is, the technical means to solve the above technical problems, is as follows.
ボールねし−ＩＣ氏鴛閣隅をお埴てボールねじすなわち
右ねじと左ねじが形成されていると共に該ボールねじに
はサポートベアリングが左右にそれぞれ嵌合嘔れ、ｌＩ
サポートベアリングの他力か移動テープＡ−貴に固定堰
れ、該サポートベアリングの他方がベッド側に固定され
、そして該ベッド肯ＩＩｃ叉承部材か形成され１ｗｉ叉
承部材に幻応するベアリングが咳移動テーブル貴に形成
されている。Ball screw - A ball screw, that is, a right-handed screw and a left-handed screw, is formed by Mr. IC's Rikkaku corner, and support bearings are fitted to the left and right sides of the ball screw, respectively.
The other force of the support bearing is fixed to the moving tape A, the other side of the support bearing is fixed to the bed side, and the bed support part IIc is formed, and the bearing corresponding to the part of the support part is fixed to the bed side. A moving table is formed to your liking.
上記ｖｔｍ的手段は次のように作用する。The above vtm-like means works as follows.
すなわち、適当な動力例えばモーターの回転によ〕ボー
ルねじ軸が回転すると、該ボールねじ軸がベッド側に取
付けたサポートベアリングに案内されなから前進すると
同時に移動テーブル貴Ｏサポートベアリングに螺合する
ボールねじ軸には前起ペッドｔＳＯボールねじ軸とは反
対方向の左ねじが形成されてするので、該左ねじにより
て移動テーブルはベッド側に対して高速で移動すること
かでき、かつ高速送り装置ｌｌｌが従来のボールねじに
適用できると共にボールねじ軸ｔ−叉持するサポートベ
アリングを特別に般ける必懺は全くない。That is, when the ball screw shaft is rotated by an appropriate power such as rotation of a motor, the ball screw shaft moves forward without being guided by the support bearing installed on the bed side, and at the same time the ball screwed into the support bearing of the moving table moves forward. Since the screw shaft is formed with a left-hand thread in the opposite direction to the front-raising ped tSO ball screw shaft, the moving table can be moved at high speed with respect to the bed side by the left-hand thread, and the high-speed feeding device This can be applied to conventional ball screws, and there is no need to provide a support bearing that supports the ball screw shaft.
次に、ｆＱＫ基いて岑ζ帆Ｏ扶蝙的手段Ｏ−寮聰ガ１！
ｔ！５？明する。Next, based on FQK, Cen ζ Sale O -Jobabe Metage O -Dormitory Satoshi Ga 1!
T! 5? I will clarify.
ｌＯはボールねじ軸で、ｔｌボールねじ軸ｌＯは任意間
隔１１ｆ：おいて、第１〜２図に向って左側に右ねじの
ボールねじ１２．右具に左ねじのボールねじ１３か形成
されてφる。1O is a ball screw axis, and the tl ball screw axis 1O is placed at an arbitrary interval 11f: on the left side as viewed in FIGS. A left-handed ball screw 13 is formed on the right tool.
該ボールねじ軸１０の一趨はカップリング１４を介して
モーター１５のシャフト１６に連結され、＠端すなわち
、−力のボールねじ１２にサポートベアリング１７が一
合され、＠のボールねじ腸にはサポートベアリング１８
が嗟合嘔れる一一刀のサポートベアリング１７はベッド
１すの表面に固定され、地力のサポートベアリング１８
Ｕ移動？ −７’ル２０のｌｋ面に固定されている。One end of the ball screw shaft 10 is connected to the shaft 16 of a motor 15 through a coupling 14, and a support bearing 17 is fitted to the @ end, that is, the − force ball screw 12, and the @ ball screw end is connected to the shaft 16 of the motor 15. Support bearing 18
The support bearing 17 that can be vomited is fixed to the surface of the bed 1, and the support bearing 18 of the earth's strength is fixed to the surface of the bed 1.
U move? -7' is fixed to the lk surface of the 20.
２１．２２は軌道台で、該軌道台２１．’１２は第３図
に示す如くベッド１９（Ｄ両箕に取射けたヌ承Ｓ材すな
わち’Ｊ柱２１２４に取射けられ、簡軌道＄２１．２２
に第４図に示す如き厘線搦動ベアリング２５．２６．２
？、２８か摺動自在に嵌４！ｒされていゐ。21.22 is a track; the track 21.22 is a track. As shown in Figure 3, '12 was installed on the bed 19 (Nu S material that was installed on both sides of D, that is, 'J pillar 2124, and the simple trajectory was $21.22.
25.26.2.
? , 28 or slidably fitted 4! It has been r.
餓ベアリング２６．２６．２７．２８は前記移動テーブ
ル２ｏｏｍ丙の所費個房にそれぞれ固定されてｍ移動テ
ープｗ２０に支持するＯ
纂Ｏはｊｌｉ！２移動テーブルで、該第２移動テーブル
２ｓ００１向に前記軌道台２１．２２に嵌合した１纏摺
動ベアリング１１．３２が固足嘔れ、該移動テープ〃３
０のはソ中夫には前記モーター１５が固定されてする。The bearings 26, 26, 27, and 28 are respectively fixed to the respective parts of the moving table 2oom and supported on the moving tape w20. In the second moving table, the first sliding bearing 11.32 fitted to the track base 21.22 is stuck in the direction of the second moving table 2s001, and the moving tape 3
In the case of No. 0, the motor 15 is fixed to the inside.
図中符号、３３．３３・・−はボール、３４はベアリン
グ保持＠、３５．３５”・は軌道台２１．２２ｔ’ｉｌ
Ｅ柱に固定するための貫通孔である。In the figure, 33.33...- is a ball, 34 is a bearing holding @, 35.35'' is a track base 21.22t'il
This is a through hole for fixing to the E pillar.
作用につ−て、モーター１５０回転によｐボーにねじ軸
ｌＯが回転開始すると、ＩＸポールねじ軸ｌＯかベッド
１９に取射けたサポートベアリング１７に案内嘔れなか
ら矢印Ｐｌの如く前進すると同時に移動テーブル２０貴
に固定したサポートペアーりング１８に前記ボールねじ
軸１０の左ねじ１３が螺合されてｉるので、移動テープ
＃２０はベッド１９に対して高連送シでもって該ボール
ねじ軸１０の前進する方向２重と同方向に前進する。Regarding the operation, when the screw shaft 1O starts rotating at P bow by the motor 150 rotations, the IX pole screw shaft 1O is guided by the support bearing 17 mounted on the bed 19, and at the same time moves forward as shown by the arrow Pl. Since the left-hand thread 13 of the ball screw shaft 10 is screwed into the support pairing 18 fixed to the movable table 20, the movable tape #20 is moved against the bed 19 with high continuous feeding. It advances in the same direction as the direction in which the shaft 10 advances.
ｔた、ボールねじ軸の逆転によｐ移動テーブルはベッド
に対して高速送りでもりて後退する。Furthermore, by reversing the ball screw shaft, the P-movement table moves back against the bed at high speed.
また、ボールねじ軸によシ前進、後退する移動テーブル
２０Ｆｉ軌道台とＩＩａＷＩＩ動ベアリング２５〜２８
によシベッドに対して摺動自在保持されているので、餌
ボールねじ軸ｔ−支持するサポートベアリングｔ−特別
般けることｔ必散としな−・易５図および纂６図は本発
明ボールねじユニットにおける早送９Ｔｏるいは遅送り
ボールねじユニットにつ−ての正面図である。In addition, a moving table 20Fi track base and IIaWII moving bearings 25 to 28 that move forward and backward based on the ball screw shaft are also included.
Since it is slidably held relative to the bed, the bait ball screw shaft t, the support bearing t, and the supporting bearing t do not necessarily have to be moved in particular. FIG. 3 is a front view of the fast-feed 9To or slow-feed ball screw unit in the unit.
第５図はボールねじ：軸１０” に任意関隔會おｉて
左右に形成されるボ〒ルねじか左右とも同方向のねじ１
２’、１３’か形ａ嘔れ、かつ左側の右ねじ１２’のピ
ッチかψりえは５Ｘで、右側の右ねじ１８１のピッチが
６％でその差ｔｌｉｌ、％に形成ちれているとする。Figure 5 shows a ball screw: A ball screw formed on the left and right sides with an arbitrary distance between the shaft 10'', or a screw 1 in the same direction on both the left and right sides.
2', 13' have a shape a, and the pitch of the right-hand thread 12' on the left side is 5X, and the pitch of the right-hand thread 181 on the right side is 6%, and the difference is tlil,%. do.
諒ボールねじ＠１０’の右ねじｌ；１に嵌合するサボー
Ｆベアリング１８Ｆｉ移動テープ〃貴に固定され、右ね
じ１２”Ｋ嵌合するサポートベアリングはベッド貴に固
定されて９る。The right-hand thread 1 of the ball screw @10' is fixed to the sabot F bearing 18Fi moving tape, and the support bearing fitted to the right-hand thread 12"K is fixed to the bed plate 9.
ｉｔｊて、蒙ボールねじ軸１０１の１回転によりボール
ねじ軸１０１は右ねじ１２１によって１ピツチ前進する
が、サポートベアリング１８は右ねじ１３１によって逆
に１ピツチ戻されることになる。Accordingly, one rotation of the ball screw shaft 101 causes the ball screw shaft 101 to advance one pitch by the right-hand screw 121, but the support bearing 18 is moved back by one pitch by the right-hand screw 131.
すなわち６九−５％−ＩＸＫ＃当するスピードｏｍｔＬ
が生ずることになる。i.e. 69-5%-IXK#corresponding speed omtL
will occur.
第６図はポー〃ねじ軸１０８に任意間隔ｔおいて左右に
形ｊ！Ｉ！されるボールねじはベッド貴に左ねじ１２”
ｈ移動デープル−に右ねじ１３”が形成され。Figure 6 shows a shape j on the left and right sides of the screw shaft 108 at an arbitrary interval t! I! The ball screw to be used is a left-hand thread of 12” on the bed.
A right-hand thread 13'' is formed on the moving double.
かつ、これら左右ねじ１２”、ｌかにはピッチ差を有し
、場らにボールねじか反対方向に形成され。In addition, these left and right screws 12'' have a pitch difference, and are sometimes formed in opposite directions as ball screws.
かつ ｍボールねじ軸１０３の左ねじ１２”に嵌合する
サポートベアリング１７はベッド１ＩＫｉｉ定され１右
ねじｌ−に−合するサポートベアリング１８はＳ動テー
ブル憐にｍ定石れている・
従って、ｌＩボールねじ軸１０３の１回転によりボール
ねじ軸１０’は右ねじ１２”によって１ピツチ前進する
と、サポートベアリング１Ｂは両ねじのピッチ和すなわ
ち、５％＋６％−１１％の早いスピードでもって、移動
テーブルは前進することになる、
以上の如く、ボールねじ軸のボールねじの向暑ｔ−変え
ると共に１ｗ！ボールねじにピッチ差を形成することに
よりて、早送シボールねじユニットあるいは運送りボー
ルねじユニット會容易に製作することかできる％９１−
有する。The support bearing 17 that fits into the left-hand thread 12" of the ball screw shaft 103 is fixed to the bed 1IKii, and the support bearing 18 that fits to the right-hand thread 1- is fixed to the S moving table. Therefore, II When the ball screw shaft 10' moves forward one pitch by the right-hand screw 12'' by one rotation of the ball screw shaft 103, the support bearing 1B moves the moving table at a high speed of the sum of the pitches of both screws, that is, 5% + 6% - 11%. will move forward.As described above, as the ball screw shaft heats up the ball screw t-changes, 1w! By creating a pitch difference in the ball screw, it is possible to easily produce a rapid-transfer ball screw unit or a transport ball screw unit.%91-
have
なお２本発明ボールねじユニットのｌｊ！施態様の１つ
として移動テーブル貴に１耐摺動ベアリング、ペッド貴
には軌道台を取刊けたものについて釈明されているか、
第３図および１４４図に示す如きＯＩＩ線摺動ベアリン
グ２５〜２８および軌道台に代えてすベシ運ｗＪか円滑
に行なわれる案内面３６の如く、ｖ形φ逆Ｖ形等を移動
テーブル側に形成し、該案内面３６に対応する内面３７
ｔ−ベッド１９貴に形成することは勿論可能である。In addition, lj! of the ball screw unit of the present invention! As one of the embodiments, is there an explanation regarding the one in which the moving table is equipped with a sliding bearing and the ped is equipped with a track base?
In place of the OII line sliding bearings 25 to 28 and the track as shown in Figs. 3 and 144, a V-shaped φ inverted V-shaped etc. is installed on the moving table side, as shown in the guide surface 36 for smooth movement. an inner surface 37 corresponding to the guide surface 36;
Of course, it is possible to form the T-bed 19 in a larger size.
また、移動テーブルとｌｌ！２移動テーブルが同一軌道
ａｔ使用して釣るが、これに限定されるものでなく、そ
れぞれ別個に設けるととも勿論可能である。Also, a moving table! Although the two moving tables use the same trajectory at for fishing, the present invention is not limited to this, and it is of course possible to provide them separately.
上配せるようにころかヤ運動に代えてすべり運動にした
場合、ｓｍ↑−プルの厚ＩＩ抵抗が多少増大するが、ボ
ールねじユニットの作用効果（送り這１ｍ）に左程差は
ない。If a sliding motion is used instead of a roller motion so that the ball can be placed on top, the sm↑-pull thickness II resistance increases somewhat, but there is no significant difference in the effect of the ball screw unit (feeding distance of 1 m).
番０図面の簡単な訳劉
４１図は不発明ボールねじユニットの平面図、ＩＩ２図
はＩｆ！１図の正面図、第３図は組１図の負面図１ｗ４
４図聾ハ叫は軌道台とベアリングとの嵌合状ｌｌｔ示す
拡大一部断面図、Ｗ４５図および１１！６図は＊＊ｔ１
４ボールねじユニットの正向囚、第７図は不ポー〃ねじ
ユニットの一部断内正面図である。Simple translation of Drawing No. 0 Liu Fig. 41 is a plan view of the uninvented ball screw unit, Fig. II2 is If! Figure 1 is the front view, Figure 3 is the negative side view of Group 1 Figure 1w4
Figure 4 is an enlarged partial sectional view showing how the track base and bearing fit together, and Figures W45 and 11!6 are **t1.
FIG. 7 is a partially cutaway internal front view of the ball screw unit.
１０、 ＩＯ”、 １０” ：ボールねじ軸２０：移動
テーブル
纂６．蕃７：案内園
１１：任意間隔
２１．２２：軌道台
１７．１８：サポートベアリング
１９二ベツド
２３．２４：支承部材
２５〜２Ｂ、３１．３２：ｌ［纏摺動ペアリンダ３０：
纂２移動テーブル
哲許出−人 寺 町 博10. IO", 10": Ball screw shaft 20: Moving table string 6. Curtain 7: Guide garden 11: Arbitrary interval 21.22: Track base 17.18: Support bearing 19 Two beds 23.24: Support members 25 to 2B, 31.32: l [Sliding pair cylinder 30:
Part 2: Moving table Tetsuo Hiroshi Teramachi
Claims (1)
右に形成場れていると共に１ｗ＆ボールねじにはサポー
トベアリングか左右にそれぞれｉＩｔｏ−ｇれ。 鋏ナボートベアリングの歯刃か移動テープ〃肯に固定さ
れ、該サポートベアリングの他方かベッド貴に固定嘔れ
、該ベッド肯の軸方向には支承部材か＊＊され、該支承
部材に対応するベアリングか移動テープ＃ｌＩＫ形ｇさ
れていることを特徴とするボールねじユニット。 慎）、肴許ｎＸの範ｍ１ｌｌＥ１項紀歌のボールねじユ
ニツ）Ｋおｉて、左右に形ｌＩ！嘔れるボールねじはベ
ッドＩＩＫ右ねじ、移動テーブル貴に左ねじが形成され
て釣る高遭送ル用ボールねじ、ユニット。 （３）、４Ｉ許−ｙｌＬＯＩｉＷＡ纂１項記載のボール
ねじユニットにおいて、ベッド真の支承部材が軌道台で
、該軌道台に対応する一ｍ＊動ベアリングか移動テーブ
ル側に形成されているボールねじユニット。 （４）、 Ｗ′Ｗｆ楕求の範囲第１項記載のボールねじ
ユニットにお鱒て、ペッド貴の支承部材か諌ペッドの案
内面で、簡案内面に対応する案内面が移動テーブル肯に
形成されているとと會特徴とするボールねじユニット。 （５）、ボールねじ軸ＶＣ任意間隔ｔおいてボールねじ
か左右に形成されると共に、該ホー〃ねじにＦｉサポー
トベアリングか左右にそれぞれＩＦｃ會され、諒サポー
トベアリングの歯刃が移動テーブル肯に固定嘔れ、該サ
ポートベアリングの他力がベッド肯に固定され、該ベッ
ド肯の軸力向には支承部材が形成され、該支承部材に対
応するベアリングか移動テーブル肯に形成されてなるボ
ールねじユニットにおいて、左右に形成されるボールね
じは同方向にボールねじが形ｒｉ嘔れ、かつこれら左右
ポールねじ関にはピッチ差を有することｔ−ＩＰ！ｉ徴
とする運送ｐボールねじユニット。 （６）、ボールねじ軸に任意間隔をおいてボールねじか
左右に形成されて釣ると共に該ボールねじに＃ｉすボー
トベアリングか左右にそれぞれ嵌合され、ａサポートベ
アリングの一方が移動テーブル肯に固定され、該サポー
トベアリングの他力かベッド−に固定され、峡ベッド側
の軸方向には支承部材か形ｉＩ！場れ、該支承部材に対
応するベアリングが移動テーブル貴に形成されてなるボ
ールねじユニットにおりて、左右に形成されるボールね
じは反対力向にボールねじか形成され、かつこれら左右
ボールねじ関にはピッチ差を有することＩｋ＊＊とする
早退シボールねじユニット。[Claims] u) Ball screws are formed at arbitrary intervals on the left and right sides of the ball screw shaft, and support bearings are installed on the left and right sides of the ball screw. The tooth blade of the scissor boat bearing is fixed to the movable tape, the other side of the support bearing is fixed to the bed, and a support member is attached in the axial direction of the bed, corresponding to the support member. A ball screw unit characterized by having a bearing or a moving tape #lIK type. Shin), the range of appetizers nX m1llE1 section Kika's ball screw unit) K, left and right form lI! The ball screw is a high-travel ball screw unit with a right-hand thread on the bed IIK and a left-hand thread on the movable table. (3) In the ball screw unit described in item 1, the bed support member is a track, and a 1m* moving bearing corresponding to the track is a ball screw formed on the movable table side. unit. (4) Range of W'Wf ellipse In accordance with the ball screw unit described in item 1, the guide surface corresponding to the simple guide surface of the support member of the ped or the guide surface of the ped is the guide surface of the movable table. A ball screw unit that is formed with a ball screw unit. (5) Ball screws are formed on the left and right sides of the ball screw axis VC at arbitrary intervals t, and Fi support bearings are fitted on the left and right sides of the screw, respectively, so that the tooth blades of the support bearings are connected to the movable table. A ball screw in which the other force of the support bearing is fixed to the bed, a support member is formed in the direction of the axial force of the bed, and a bearing corresponding to the support member is formed on the movable table. In the unit, the ball screws formed on the left and right sides are shaped in the same direction, and there is a pitch difference between the left and right pole screw connections.t-IP! Transport p ball screw unit with i characteristics. (6) Ball screws are formed on the left and right sides at arbitrary intervals on the ball screw shaft, and boat bearings #i are fitted to the ball screws on the left and right sides respectively, and one of the support bearings a is attached to the moving table. It is fixed to the bed by the force of the support bearing, and the support member is fixed to the bed in the axial direction on the bed side. In some cases, a ball screw unit in which a bearing corresponding to the supporting member is formed on a movable table is formed, and the ball screws formed on the left and right sides are formed in opposite force directions, and the relationship between these left and right ball screws is The early retraction screw unit has a pitch difference Ik**.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20984581A JPS58113653A (en) | 1981-12-28 | 1981-12-28 | Ball-and-screw unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20984581A JPS58113653A (en) | 1981-12-28 | 1981-12-28 | Ball-and-screw unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58113653A true JPS58113653A (en) | 1983-07-06 |
| JPH024821B2 JPH024821B2 (en) | 1990-01-30 |
Family
ID=16579566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20984581A Granted JPS58113653A (en) | 1981-12-28 | 1981-12-28 | Ball-and-screw unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58113653A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5986458U (en) * | 1982-12-03 | 1984-06-11 | ソニー株式会社 | feeding device |
| JPS61211566A (en) * | 1985-03-15 | 1986-09-19 | Kayaba Ind Co Ltd | Differential screw structure |
| JPH01121292U (en) * | 1988-01-27 | 1989-08-17 | ||
| JPH0418751U (en) * | 1990-06-06 | 1992-02-17 | ||
| JPH0538445U (en) * | 1991-10-24 | 1993-05-25 | 日本精工株式会社 | Linear operation unit |
| JPH0547598U (en) * | 1991-12-04 | 1993-06-25 | 日本精工株式会社 | Linear actuation unit |
| US5667071A (en) * | 1994-08-31 | 1997-09-16 | Fuji Photo Film Co., Ltd. | Photosensitive material package and packaging apparatus for the same |
| JP2010139015A (en) * | 2008-12-12 | 2010-06-24 | Nsk Ltd | Method of manufacturing screw spindle for right and left coaxial ball screw |
| JP2014074427A (en) * | 2012-10-03 | 2014-04-24 | Nsk Ltd | Linear motion table device |
-
1981
- 1981-12-28 JP JP20984581A patent/JPS58113653A/en active Granted
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5986458U (en) * | 1982-12-03 | 1984-06-11 | ソニー株式会社 | feeding device |
| JPS61211566A (en) * | 1985-03-15 | 1986-09-19 | Kayaba Ind Co Ltd | Differential screw structure |
| JPH0574735B2 (en) * | 1985-03-15 | 1993-10-19 | Kayaba Industry Co Ltd | |
| JPH01121292U (en) * | 1988-01-27 | 1989-08-17 | ||
| JPH0418751U (en) * | 1990-06-06 | 1992-02-17 | ||
| JPH0538445U (en) * | 1991-10-24 | 1993-05-25 | 日本精工株式会社 | Linear operation unit |
| JPH0547598U (en) * | 1991-12-04 | 1993-06-25 | 日本精工株式会社 | Linear actuation unit |
| US5667071A (en) * | 1994-08-31 | 1997-09-16 | Fuji Photo Film Co., Ltd. | Photosensitive material package and packaging apparatus for the same |
| US5797247A (en) * | 1994-08-31 | 1998-08-25 | Fuji Photo Film Co., Ltd. | Photosensitive material package and packaging apparatus for the same |
| JP2010139015A (en) * | 2008-12-12 | 2010-06-24 | Nsk Ltd | Method of manufacturing screw spindle for right and left coaxial ball screw |
| JP2014074427A (en) * | 2012-10-03 | 2014-04-24 | Nsk Ltd | Linear motion table device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH024821B2 (en) | 1990-01-30 |
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