JPS60161051A - Feeding device of machine tool employing ball screw - Google Patents
Feeding device of machine tool employing ball screwInfo
- Publication number
- JPS60161051A JPS60161051A JP1737884A JP1737884A JPS60161051A JP S60161051 A JPS60161051 A JP S60161051A JP 1737884 A JP1737884 A JP 1737884A JP 1737884 A JP1737884 A JP 1737884A JP S60161051 A JPS60161051 A JP S60161051A
- Authority
- JP
- Japan
- Prior art keywords
- nut body
- preload
- nut
- feed screw
- screw shaft
- 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.)
- Pending
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
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/56—Preventing backlash
Abstract
Description
【発明の詳細な説明】
本発明はボールねじを使用した加工機械の送シ、、装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding device for a processing machine using a ball screw.
いま、従来の送り手段を説明すると、仁のも′の、は第
１図に示す↓うに送りねじ軸１’に対して分割構成した
一対のナツト体２′および３′を螺合させ、その一方の
ナツト体２′だけをベース４′側忙、固定し、他方のナ
ツト体３′はスライドキ〒結合によって一方のナツト体
２′に連係させる。そして両ナツト体２ ／ 、ａ／間
に生ずるパツクラッシュの消去箒および軸方向荷重和対
する弾性変位量を最小にして剛性を向上させる手段つま
シ予 □′圧平手段して両ナツト体間にスペーサＡを介
装する方式が採られている、
而してＬ記の手法によるときは、両−ナツト体間のスペ
ーサ寸法力５（極めてシビアとなるため、製作に当って
は各セット毎釦入念な研磨仕上加圧が必要となる短所が
存在している。また比較的摩耗は少ないとはいえ、長期
の使用において摩擦例所に減りを生ずるときには前記ス
ペーサを交換する必要を生じ、保守が容易に行えないと
いう問題点もあった。Now, to explain the conventional feeding means, a pair of nut bodies 2' and 3' divided into parts are screwed together with respect to the feed screw shaft 1' as shown in Fig. 1. Only one nut body 2' is fixed on the base 4' side, and the other nut body 3' is linked to one nut body 2' by a slide key connection. A means for eliminating the crush that occurs between the two nut bodies 2/, a/, and a means for improving rigidity by minimizing the amount of elastic displacement against the sum of the axial loads. A method is adopted in which a spacer A is interposed, and when using the method described in L, the spacer dimensional force between both nut bodies is 5 (this is extremely severe, so the button must be adjusted for each set during production). There is a disadvantage that careful polishing and finishing pressurization is required.Also, although there is relatively little wear, when the friction decreases in some places after long-term use, it becomes necessary to replace the spacer, which requires maintenance. There was also the problem that it was not easy to do.
本発明は上記した従来技術の問題点に鑑みてなされたも
ので、予圧が簡単に行え、しかも保守が容易である加工
機械の送り装置を提供するこ−とを目的としている。The present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to provide a feeding device for a processing machine that allows easy preloading and is easy to maintain.
以下本発明の一実施例を図面について説明する。An embodiment of the present invention will be described below with reference to the drawings.
第２図および第３図において、符号１け送りねじ軸で、
この送りねじ軸１は図示しないベッド内に回転だけ自由
に装架されておりサーボモータによって駆動制御１され
る。２および３けボー ／Ｌ／ Ｂ・・を介して上記送
りねじ軸１に螺合させたナツト体で、これらナツト体２
．３は図示省略のテーブルに設けたベース４に所定の状
態で固定保持される。In Fig. 2 and Fig. 3, the number 1-digit feed screw shaft is
This feed screw shaft 1 is rotatably mounted in a bed (not shown) and is driven and controlled by a servo motor. These nut bodies 2 are screwed onto the feed screw shaft 1 through the 2 and 3 keys /L/B...
．． 3 is fixedly held in a predetermined state on a base 4 provided on a table (not shown).
すなわち一方のナツト体２はそのフランジ部２ａをボル
ト５・・によって締結されて前記ベース４の一端に固定
的に取付けられる。また他々ノナット体３も同様にその
フランジ部３ ａ 全固定手段たるポルトロ・・によっ
て締結されてベース４の他端に固定的に取付けられるも
のであるが、この場合該ナツト体３けフランジ部３ａと
ベース４の接合位置つまり取付位置において回動じつる
ようにｆｆ／ｉ成される。すなわちフランジ部３ａに円
弧状の長孔７・・を穿設し、その長孔７・・にポルト６
・・を通すようにして、上記長孔７・・の長さの範囲で
ナツト体３の自由な回動を許容する。なお符号８はフラ
ンジ部３ａの周面に設けたレンチ掛は用段部である。That is, one nut body 2 is fixedly attached to one end of the base 4 by fastening its flange portion 2a with bolts 5. In addition, the other nut bodies 3 are also fixedly attached to the other end of the base 4 by fastening the flange portion 3 a of the nut body 3 by a portoro, which is a total fixing means, but in this case, the flange portion of the nut body 3 is fixedly attached to the other end of the base 4. ff/i is formed so as to rotate freely at the joining position, that is, the mounting position, of the base 3a and the base 4. That is, arc-shaped long holes 7 are bored in the flange portion 3a, and ports 6 are inserted into the long holes 7.
..., allowing the nut body 3 to freely rotate within the length range of the elongated hole 7. Note that the reference numeral 8 indicates a stepped portion for a wrench hook provided on the circumferential surface of the flange portion 3a.
本発明に係る装置の一実施例は上記のように構成されて
いるから、例えば送りねじ軸１が右ねじれの場合は、他
端側のナツト体３を取付位置においてさらに同方向へ回
動操作する。こうすると両ナツト間には第４図に示すよ
うな引張荷重が作用するものでこれＫよりパツクラツシ
、ユが除去されると共に送りねじ軸１に対し引張予圧が
作用される。この場合においてナツト体３の締込みトル
クをトルクレンチなどによって設定すれば適宜予圧を自
由に得ることができる。Since one embodiment of the device according to the present invention is configured as described above, for example, when the feed screw shaft 1 is right-handed, the nut body 3 on the other end side is further rotated in the same direction at the mounting position. do. In this case, a tensile load as shown in FIG. 4 is applied between both nuts, and this removes the cracks and bolts from K, and at the same time a tensile preload is applied to the feed screw shaft 1. In this case, if the tightening torque of the nut body 3 is set using a torque wrench or the like, an appropriate preload can be obtained freely.
なお上記の一実施例では、他方のナツト体３の取付位置
をフランジ部３Ｂとベース４端の当接位置としたが、直
接両ナツト体２および３が当接する場合はその当接端が
前記で云う取付位置になることは言うまでもない。In the above embodiment, the mounting position of the other nut body 3 is the abutting position between the flange portion 3B and the end of the base 4, but when both the nut bodies 2 and 3 directly abut, the abutting end is Needless to say, it will be the mounting position mentioned in .
因みに本発明の板木思想とすると仁ろは少くとも何れか
一方のナツト体に、該ナツト体を取付位置において回動
しうるようにすると共に、その取付位置でナツト体を固
定するようＫした点にあるから、本発明を上記に挙げた
以外の態様で実施することも可能である。Incidentally, according to the idea of the wooden board of the present invention, at least one of the nut bodies is made so that the nut body can rotate at the mounting position, and the nut body is fixed at the mounting position. For this reason, it is possible to carry out the present invention in modes other than those described above.
第５図の事例は他方のナツト体３を取付位置で回動操作
したとき、圧縮荷重が作用してバックラッシュが除去さ
れ、送９ねじ軸１に対し圧縮予圧が作用されるよう圧し
たものである。In the example shown in Fig. 5, when the other nut body 3 is rotated at the mounting position, a compressive load is applied to remove the backlash, and a compressive preload is applied to the feed screw shaft 1. It is.
同図において前記に示す一実施例と均等ないし同一の部
材については前記と同一の符号をもって示してちる。こ
の実施例ではベース４の下端両側に取付部４ａおよび４
ｂを離隔して設けその各々の内側に一対のナツト体２お
よび３を配設したものである。In the figure, members that are equivalent or the same as those of the embodiment shown above are designated by the same reference numerals. In this embodiment, mounting portions 4a and 4 are provided on both sides of the lower end of the base 4.
b are provided at a distance from each other, and a pair of nut bodies 2 and 3 are disposed inside each nut body.
以上実施例の説明で明らか々通シ木発明け、バックラッ
シュを除去して適宜の予圧を付勢するに当り、他方のナ
ツト体を取付位置において回動させ、そしてその位置で
固定させるだけであるから構成が簡単であると共に予圧
力を任意に設定できるという特色を発揮する。またそれ
ばかりでなく摩耗が生じても単に前記回動調節だけで所
期の予圧力を設定できるもので保守も容易である利点が
ある。It is clear from the above description of the embodiment that in order to eliminate backlash and apply an appropriate preload, the other nut body is simply rotated to the mounting position and then fixed at that position. Because of this, the structure is simple and the preload force can be set arbitrarily. In addition, even if wear occurs, the desired preload force can be set simply by adjusting the rotation, and maintenance is also easy.
第１図は従来の送り手段の構成を示す一部縦断正面図
第２図および第３図は本発明に係る装置の一実施例を示
す一部縦断正面図および側。
面図 第４図は動作説明図 第５図は他の実施例を示す
正面図である。
ｉ’、、、１’ ：送りねじ軸 ２．２′、３．３’：
ナット体４．４’：ベース Ａニスペーサ
ａ：ボール ２ｍ、３ａ：フランジ部
５．６：ボルト ７：長孔
８：段部 ４ａ、４ｂ：取付部
特許出願人 新川工業株式会社Figure 1 is a partially longitudinal front view showing the configuration of a conventional feeding means.
2 and 3 are a partially longitudinal front view and side view showing an embodiment of the device according to the present invention. Top view FIG. 4 is an explanatory diagram of operation. FIG. 5 is a front view showing another embodiment. i',,,1': Feed screw shaft 2.2', 3.3':
Nut body 4.4': Base Ani spacer a: Ball 2m, 3a: Flange part 5.6: Bolt 7: Long hole 8: Step part 4a, 4b: Mounting part Patent applicant Shinkawa Kogyo Co., Ltd.
Claims (1)
共に、これらナツト体を共通のベース忙取、、付固定し
てなる送り手段Ｋ ％−いて、上、記の１うち少くとも
一方のナツト体（１，該ナツト体を取付位置において回
動させる回動手段と、こや取１．付、位置において固定
する固定手段を備えさせ５るようにしたことを特徴とす
るボールねじを使用した加工機械の送り装置。A feeding means K is formed by screwing at least two nut bodies onto the feed screw shaft, and fixing these nut bodies to a common base, at least one of the above. A ball screw characterized in that the nut body (1) is provided with a rotating means for rotating the nut body in the mounting position, and a fixing means for fixing the nut body in the attached position. The feeding device of the processing machine used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1737884A JPS60161051A (en) | 1984-02-01 | 1984-02-01 | Feeding device of machine tool employing ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1737884A JPS60161051A (en) | 1984-02-01 | 1984-02-01 | Feeding device of machine tool employing ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60161051A true JPS60161051A (en) | 1985-08-22 |
Family
ID=11942345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1737884A Pending JPS60161051A (en) | 1984-02-01 | 1984-02-01 | Feeding device of machine tool employing ball screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60161051A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0257167A (en) * | 1988-05-05 | 1990-02-26 | Elopak Syst Ag | Sterilization |
| JPH0552218A (en) * | 1991-08-23 | 1993-03-02 | T H K Kk | Linear motion guide device having ball screw and method of pre-loading ball screw |
| US8051729B2 (en) * | 2005-06-17 | 2011-11-08 | Thk Co., Ltd. | Screw device and method of manufacturing the same |
| JP2014161988A (en) * | 2013-02-27 | 2014-09-08 | Brother Ind Ltd | Rotary table device and machine tool |
| CN104942353A (en) * | 2014-03-31 | 2015-09-30 | 青岛青宏机械制造有限公司 | Workbench transmitting device of planer type milling machine |
-
1984
- 1984-02-01 JP JP1737884A patent/JPS60161051A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0257167A (en) * | 1988-05-05 | 1990-02-26 | Elopak Syst Ag | Sterilization |
| JPH0552218A (en) * | 1991-08-23 | 1993-03-02 | T H K Kk | Linear motion guide device having ball screw and method of pre-loading ball screw |
| US8051729B2 (en) * | 2005-06-17 | 2011-11-08 | Thk Co., Ltd. | Screw device and method of manufacturing the same |
| JP2014161988A (en) * | 2013-02-27 | 2014-09-08 | Brother Ind Ltd | Rotary table device and machine tool |
| CN104942353A (en) * | 2014-03-31 | 2015-09-30 | 青岛青宏机械制造有限公司 | Workbench transmitting device of planer type milling machine |
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