JP2003314674A - Backlash eliminator for decelerator - Google Patents
Backlash eliminator for deceleratorInfo
- Publication number
- JP2003314674A JP2003314674A JP2002123448A JP2002123448A JP2003314674A JP 2003314674 A JP2003314674 A JP 2003314674A JP 2002123448 A JP2002123448 A JP 2002123448A JP 2002123448 A JP2002123448 A JP 2002123448A JP 2003314674 A JP2003314674 A JP 2003314674A
- Authority
- JP
- Japan
- Prior art keywords
- output shaft
- torque
- speed reducer
- backlash
- decelerator
- 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
Landscapes
- Control Of Position Or Direction (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はＮＣ制御装置に使用
される減速機のバックラッシュ除去機構に係り、特に、
簡単な機構で、容易にバックラッシュを除去して加工精
度を向上し得る減速機のバックラッシュ除去機構に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlash removing mechanism for a speed reducer used in an NC controller, and more particularly,
The present invention relates to a backlash removing mechanism for a speed reducer that can easily remove backlash with a simple mechanism to improve machining accuracy.
【０００２】[0002]
【従来の技術】自動車の各種部品、例えば、シリンダー
ヘッド、シリンダーブロック、インテークマニホールド
等はアルミや鉄を鋳造加工して製造される。この鋳造に
よって得られる鋳造品（ワーク）は押湯、湯口、鋳物バ
リ等の不用物が付着しているため、ワークを治具に収納
固定し、ワーク加工装置を用いて加工を施さなければな
らない。2. Description of the Related Art Various automobile parts, such as a cylinder head, a cylinder block, an intake manifold, etc., are manufactured by casting aluminum or iron. Since castings (workpieces) obtained by this casting have unwanted materials such as feeders, sprues, casting burrs, etc., the work pieces must be stored and fixed in a jig and processed using a work processing device. .
【０００３】この加工に際して、押湯や湯口については
チップソー（丸鋸）で切断除去され、また、鋳物バリに
ついてはエンドミルカッターで除去される。特に、近年
では、これら装置を汎用化するために、ワーククランプ
治具やカッター側駆動機構に多関節方式のＮＣ制御が採
用されている。At the time of this processing, the feeder and the sprue are cut and removed with a tip saw (circular saw), and the casting burrs are removed with an end mill cutter. In particular, in recent years, multi-joint NC control has been adopted for a work clamp jig and a cutter side drive mechanism in order to make these devices general-purpose.
【０００４】ワーク加工装置のＮＣ制御に際しては、通
常、これら装置に減速機が組み入れられるが、この場
合、減速機のバックラッシュ（ガタ）が問題となる。す
なわち、減速機のバックラッシュの大きさがそのまま加
工精度の低下となるため、このようなバックラッシュを
取り除くことが大きな課題となる。In the NC control of the work processing device, a speed reducer is usually incorporated in these devices, but in this case, backlash (backlash) of the speed reducer becomes a problem. That is, since the size of the backlash of the speed reducer directly lowers the processing accuracy, it is a great problem to remove such backlash.
【０００５】バックラッシュを取り除く手段として従来
減速機の出力軸にばね機構等により機械的に予圧を与え
る構造のものが採用されている。As a means for removing backlash, a structure having a structure that mechanically preloads the output shaft of a speed reducer with a spring mechanism or the like has been conventionally used.
【０００６】[0006]
【発明が解決すべき課題】しかし、この種の機械的予圧
方式では、高度の調整技術を要するのみならず、このよ
うな調整を頻繁に行わなければならず、実際の現場での
このような調整は非常に困難である。However, this type of mechanical preloading system requires not only a high level of adjustment technique, but also such an adjustment must be carried out frequently, and such an adjustment in the actual field is required. Adjustment is very difficult.
【０００７】そこで、本発明の目的は高度な調整技術を
必要とせず、かつ、機械の磨耗等、経年変化の影響を受
けることがなく、しかも最適な予圧を簡単に設定でき、
このため、ＮＣ制御本来の高加減速動作や高精度位置決
め等が可能であり、上述の公知技術に存する欠点を改良
した減速機のバックラッシュの除去機構を提供すること
にある。Therefore, an object of the present invention is that it does not require advanced adjustment technology, is not affected by secular change such as machine abrasion, and can set an optimum preload easily.
Therefore, it is an object of the present invention to provide a backlash removing mechanism of a speed reducer, which is capable of high acceleration / deceleration operation and high-accuracy positioning that are inherent in NC control, and which has improved the drawbacks of the above-described known technology.
【０００８】[0008]
【課題を解決するための手段】上述の目的を達成するた
め、本発明によれば、出力軸を備え、この出力軸の回転
速度を低減させる減速機において、該出力軸の周縁にト
ルク伝達部材を配置するとともに、該トルク伝達部材に
トルクを負荷して出力軸に予圧を与え、これによりバッ
クラッシュを除去することを特徴とする。To achieve the above object, according to the present invention, in a speed reducer having an output shaft and reducing the rotational speed of the output shaft, a torque transmission member is provided around the periphery of the output shaft. Is arranged, and a torque is applied to the torque transmission member to apply a preload to the output shaft, thereby eliminating backlash.
【０００９】[0009]
【発明の実施の態様】以下、本発明を添付図面を用いて
詳述する。図１は本発明にかかる減速機のバックラッシ
ュ除去機構の一具体例の断面図である。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a sectional view of a specific example of a backlash removing mechanism of a speed reducer according to the present invention.
【００１０】図１において、１は減速機であって、出力
軸２を備え、サーボモータ３等の駆動源によって回転さ
れた回転軸４の回転速度を減速して出力軸２に伝達し、
これにより出力軸２の回転速度を減速させる。５は減速
機１および後述のトルクアクチュエータ７を支持する固
定ベースである。In FIG. 1, reference numeral 1 is a speed reducer, which is provided with an output shaft 2 and reduces the rotational speed of a rotary shaft 4 rotated by a drive source such as a servomotor 3 to transmit the reduced speed to the output shaft 2.
This reduces the rotation speed of the output shaft 2. A fixed base 5 supports the speed reducer 1 and a torque actuator 7 described later.
【００１１】本発明の特徴は出力軸２の周縁９にトルク
伝達部材６を配置するとともに、このトルク伝達部材６
に駆動源からピニオン８等を介して出力軸２に対してト
ルクを負荷して出力軸２に予圧を与えることに存する。
このトルクの負荷は出力軸２の回転方向に対して逆方
向、正方向等、任意の方向のものであってもよい。ま
た、トルク伝達部材としては、リングギヤ、チエーン、
タイミングベルト等が用いられる。A feature of the present invention is that the torque transmission member 6 is arranged on the peripheral edge 9 of the output shaft 2 and the torque transmission member 6 is provided.
In addition, a torque is applied to the output shaft 2 from the drive source via the pinion 8 or the like to apply a preload to the output shaft 2.
The load of this torque may be in any direction such as a reverse direction or a forward direction with respect to the rotation direction of the output shaft 2. Further, as the torque transmission member, a ring gear, a chain,
A timing belt or the like is used.
【００１２】トルク負荷の手段としては、駆動源として
トルクアクチュエータ７を設置し、このトルクアクチュ
エータ７の稼動によりピニオン８を介して、または図示
しないが、アイドルギヤを介して出力軸２のトルク伝達
部材６に対してトルクを負荷することにより行う。この
ときの駆動源としては、エアモータ、サーボモータ、電
気モータ、油圧モータ等のトルクアクチュエータ７を用
いることもできる。As a torque load means, a torque actuator 7 is installed as a drive source, and when the torque actuator 7 is operated, a torque transmission member of the output shaft 2 is supplied through a pinion 8 or through an idle gear (not shown). 6 is loaded with torque. As the drive source at this time, a torque actuator 7 such as an air motor, a servo motor, an electric motor or a hydraulic motor can be used.
【００１３】本発明では上述のとおり、減速機１の出力
軸２に駆動源としてのトルクアクチュエータ７により、
出力軸２にトルクを負荷して減速機１に予圧を与えるこ
とにより、減速機１のバックラッシュを除去する。In the present invention, as described above, the output shaft 2 of the speed reducer 1 is provided with the torque actuator 7 as a drive source.
Backlash of the speed reducer 1 is removed by applying a torque to the output shaft 2 and applying a preload to the speed reducer 1.
【００１４】[0014]
【発明の効果】以上のとおり、本発明によれば、減速機
１に予圧を与えた状態でＮＣ制御を行うことができるの
で、減速機を使用してもＮＣ制御本来の高加減速動作や
高精度位置決めが可能になる。As described above, according to the present invention, since the NC control can be performed in a state in which the speed reducer 1 is preloaded, even if the speed reducer is used, the high acceleration / deceleration operation originally intended for NC control and High-precision positioning is possible.
【００１５】しかも、この予圧の際、従来のように、高
度な調整技術を必要とせず、かつ、機械の磨耗等、経年
変化の影響を受けることもなく、最適な予圧を簡単に設
定できる。Moreover, in the case of this preload, unlike the prior art, it is possible to easily set the optimum preload without requiring advanced adjustment technology and without being affected by aging such as wear of the machine.
【図１】本発明にかかる減速機のバックラッシュ除去機
構を表した一具体例の断面図である。FIG. 1 is a sectional view of a specific example showing a backlash removing mechanism of a speed reducer according to the present invention.
【符号の説明】 １ 減速機 ２ 出力軸 ３ サーボモータ ４ 回転軸 ５ 固定ベース ６ トルク伝達部材 ７ トルクアクチュエータ ８ ピニオン ９ 周縁[Explanation of symbols] 1 reducer 2 output shaft 3 Servo motor 4 rotation axes 5 fixed base 6 Torque transmission member 7 Torque actuator 8 pinion 9 rim
Claims (4)
減させる減速機において、該出力軸の周縁にトルク伝達
部材を配置するとともに、該トルク伝達部材にトルクを
負荷して出力軸に予圧を与え、これによりバックラッシ
ュを除去することを特徴とする減速機のバックラッシュ
除去機構。1. A speed reducer having an output shaft for reducing the rotation speed of the output shaft, wherein a torque transmission member is arranged at the periphery of the output shaft, and a torque is applied to the torque transmission member to the output shaft. A backlash removing mechanism for a speed reducer characterized by applying a preload to remove the backlash.
ングギヤ、チエーン、またはタイミングベルトである請
求項１に記載の減速機のバックラッシュ除去機構。2. The backlash removing mechanism for a speed reducer according to claim 1, wherein the torque transmission member is a ring gear, a chain, or a timing belt.
達部材にピニオンまたはアイドルギヤを介してトルクを
負荷する請求項１に記載の減速機のバックラッシュ除去
機構。3. The backlash removing mechanism for a speed reducer according to claim 1, wherein torque is applied from the drive source to the torque transmitting member via a pinion or an idle gear.
タ、サーボモータ、電気モータまたは油圧モータからな
るトルクアクチュエータである請求項３に記載の減速機
のバックラッシュ除去機構。4. The backlash removing mechanism for a speed reducer according to claim 3, wherein the drive source is a torque actuator including an air motor, a servo motor, an electric motor, or a hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002123448A JP2003314674A (en) | 2002-04-25 | 2002-04-25 | Backlash eliminator for decelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002123448A JP2003314674A (en) | 2002-04-25 | 2002-04-25 | Backlash eliminator for decelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003314674A true JP2003314674A (en) | 2003-11-06 |
Family
ID=29538736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002123448A Pending JP2003314674A (en) | 2002-04-25 | 2002-04-25 | Backlash eliminator for decelerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003314674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1932606A1 (en) * | 2006-12-14 | 2008-06-18 | Shigayamashita Co., Ltd. | Casting finishing device |
-
2002
- 2002-04-25 JP JP2002123448A patent/JP2003314674A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1932606A1 (en) * | 2006-12-14 | 2008-06-18 | Shigayamashita Co., Ltd. | Casting finishing device |
| US20080141514A1 (en) * | 2006-12-14 | 2008-06-19 | Shigayamashita Co., Ltd. | Casting finishing device |
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