CN1852019A - High-precision low-friction magnetic suspension sliding composite guid rail - Google Patents

High-precision low-friction magnetic suspension sliding composite guid rail Download PDF

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Publication number
CN1852019A
CN1852019A CN 200610039766 CN200610039766A CN1852019A CN 1852019 A CN1852019 A CN 1852019A CN 200610039766 CN200610039766 CN 200610039766 CN 200610039766 A CN200610039766 A CN 200610039766A CN 1852019 A CN1852019 A CN 1852019A
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China
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guide
side
guide rail
permanent magnet
rail
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CN 200610039766
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Chinese (zh)
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CN100530932C (en
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余晓芬
奚琳
黄斌
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合肥工业大学
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Publication of CN100530932C publication Critical patent/CN100530932C/en

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Abstract

This invention relates to a high accuracy low friction magnetic suspension-sliding compound guideway characterizing in mounting a pair of base like magnets oppositely between the end face of the bottom of a mobile piece and the supporting face of the guideway to keep them at an un-contact state by the repulsive force formed by it and form a positive pressure between the top guide faces of the mobile piece and the guideway, taking a side end face of the mobile piece and the guideway as the side guide face to mount a pair of like side magnets oppositely on the other end face opposite to the guide face of the side to keep the mobile piece and the guideway at an un-contact state at the side end face with the repulsive force formed by the pair of magnets to form a positive pressure on the guide face of the side part.

Description

高精度低摩擦磁浮-滑动复合导轨 Precision low friction maglev - rail sliding compound

技术领域 FIELD

:本发明涉及运动导向装置,更具体地说是导轨。 : The present invention relates to a motion guide device, more particularly rail.

背景技术 Background technique

:加工机械和长度测量仪器的性能均与导轨特性密不可分,现代机床和高精度仪器要求导轨能够满足快速运动及高精度定位。 : Processing properties and mechanical length measuring instrument with the rail properties are inseparable, modern machine tools and precision instruments to meet the requirements rail rapid movement and high precision positioning. 传统的滑动导轨结构简单、刚性好、承载能力强,但因摩擦系数大,所以对润滑的要求高、能耗大、运动速度受限制;传统的滚动导轨摩擦系数小、发热量小、寿命较长,但刚度差、承载能力低、难以实现高的导向精度和运动稳定性,且高速时易产生振动和噪声;气浮导轨近年来发展很快,其摩擦、噪声、振动均很小,导向精度高、寿命长、可实现高速运动、无须润滑,但承载能力低、结构复杂、制作成本高、无法用于真空环境,还需考虑排出气流对测量系统的干扰;磁浮导轨是近年发展起来的另一新型导轨,其承载能力大,摩擦、噪声、振动小,对运行速度无限制,无须润滑,采用电磁铁时,对环境无要求,运动及系统特性可调易控;但系统结构复杂、制作成本高、性能不稳定、导向精度不易控制、电磁铁发热的影响难以克服。 Simple conventional slide rail structure, rigidity, carrying capacity, but a large friction coefficient, the high requirements for lubrication, energy consumption, the speed of movement is limited; conventional rolling guide small coefficient of friction, low heat, live longer than long, but the difference in stiffness, low load bearing capacity, it is difficult to achieve high guiding precision and stability of motion, and easy to produce vibration and noise at high speed; developed rapidly in recent years, air bearings, friction, noise and vibration are very small, the guide high precision, long life, high-speed movement without lubrication, but low load bearing capacity, complicated structure, high cost of production, not a vacuum environment, the need to consider the interference of the exhaust gas flow measurement system; maglev rail is developed in recent years another new rails, carrying capacity, friction, noise, vibration, limitation of speed, without lubrication, when the electromagnets, without the environmental requirements, and motion is easy to control with adjustable system; but the complexity of the system structure, production costs are high, unstable, difficult to control the accuracy of the guide, the influence of heat is difficult to overcome the electromagnet. 所以在设计现代机床和高精度仪器时,选用任何一种导轨,都很难同时满足承载、高速或低速、高稳定性、高导向精度、低成本等各方面的要求,成为提高机床和仪器性价比的瓶颈。 Therefore, in the design of modern machine tools and precision instruments, use any standard rails, are difficult to meet various demands of the carrier, high speed or low speed, high stability, high guide precision, low cost, and improve machine equipment cost becomes bottleneck.

发明内容 SUMMARY

:本发明是为避免上述现有技术所存在的不足之处,提供一种将滑动导轨与磁浮导轨相结合、结构简单高精度低摩擦磁浮-滑动复合导轨。 : The present invention is to avoid the shortcomings of the prior art described above is present, combine to provide a maglev rail and the slide rail, a simple structure with high precision low friction maglev - Composite sliding rail.

本发明解决技术问题所采用的技术方案是:本发明的结构特点是在移动件的底部端面与导轨的支承面之间,同性相对地安装永久磁铁副,以所述永久磁铁副形成的斥力保持移动件的底部端面与导轨的支承面之间处于非接触状态,并在移动件与导轨的顶部导向面之间形成正压力;以所述移动件与导轨的一侧部端面为侧部导向面,在与所述侧部导向面相对的另一侧部端面上,同性相对地安装永久磁铁副,以所述永久磁铁副形成的斥力保持移动件与导轨在该侧部端面处于非接触状态,并在侧部导向面上形成正压力。 Solution to Problem The present invention adopts the following technical scheme: the structural characteristics of the present invention is between the bottom end surface of the moving member and the guide rail support surface, opposite sex repulsion sub permanent magnet formed in the sub permanent magnet is mounted to said holder in between the bottom end surface of the moving member bearing surface and the guide rail non-contact state, and a positive pressure is formed between the moving member and the top surface of the guide rail; the moving member to a side portion of the end surface of a side portion of the guide rail guide surface in the side portion opposite to the guide surface portion of the other end face side, isotropic permanent magnets mounted opposite pairs, to the repulsive force of the permanent magnet forming the sub-holding member and the guide rail end faces moves in a non-contact state of the side portions, and a positive pressure surface side of the guide portion.

本发明的结构特点也在于在所述底部永久磁铁副中,处在移动体中的磁铁条为固定设置,处在导轨中的磁铁条在高度位置上可调。 The structural characteristics of the present invention is also the bottom of the sub permanent magnet, the magnet moving body in the article is fixed, a magnet in the guide rails adjustable height position.

与已有技术相比,本发明有益效果体现在: Compared with the prior art, the beneficial effects of the present invention is embodied in:

1、本发明既继承了滑动导轨结构简单、制作成本低、导向性能稳定的优点,又兼备了磁浮导轨摩擦小、抗振动干扰能力强、低速时不易出现爬行等优良特性,使导轨能同时满足运动特性好和导向精度高的要求,且具有较强的载荷适应性和抗振动能力。 1, the present invention inherits a simple slide rail structure, low production cost, stable guiding performance advantages, and both the small maglev rail friction, vibration and strong interference, excellent characteristics of creep and the like easily occurs at low speed, the guide rail can be met. good high guiding precision motion characteristics and requirements, and has a strong load adaptability and vibration resistance.

2、本发明导向精度由顶部导向面与侧部导向面的加工精度决定;由于在运动件和导轨的非导向面上,同性相对地安装了永久磁铁副,以永久磁铁副产生的斥力克服运动件重量并给导向面上施以一定的正压力,保证运动件与导轨在导向面上的可靠接触;本发明可以通过适当设置永久磁铁副间的间距,从而使移动件与导轨在导向面上处于临界接触状态,而非导向面处于非接触状态,从而大大减小导轨与移动件之间的摩擦力。 2, the present invention is determined by the precision of the guide of the top guide surface and the machining accuracy of the side portion guide surface; since the non-moving member and the guide surface of the guide rail, opposite sex sub permanent magnet mounted to a repulsive force generated by the permanent magnet against movement of the sub the weight member and the guide surface to impose a certain positive pressure to ensure a reliable contact with the moving parts of the surface of the guide rail; the present invention can be provided by appropriately spacing between the sub permanent magnet, so that the movable member and the guide surface of the guide rail in the critical contact state, instead of the guide surface in a non-contact state, thus greatly reducing friction between the guide rail and the moving member.

3、本发明通过导向面形状公差等级的选择,可使导轨具有不同的导向精度;通过调整磁铁副间的相对位置,可改变斥力大小,使导轨适应不同的载荷;磁浮导轨的刚度随着磁铁间间隙的改变而改变,可抵抗不同频率的振动;因此该导轨具有很强的自适应性。 3, the present invention is by selecting the tolerance level of the shape of the guide surface, can guide rails have different accuracy; by adjusting the relative position between the sub-magnets, the repulsive force can change the size of the load to adapt to different rail; maglev rail stiffness with magnets changing the gap between the changes, resistant to vibrations of different frequencies; so that the guide rail has a strong adaptive.

附图说明 BRIEF DESCRIPTION

:图1为本发明结构示意图。 : FIG. 1 is a structural schematic view of the invention.

图2为本发明正常工作状态下移动件受力示意图。 A schematic view of the force moving member 2 under normal operating conditions of the present invention.

图3为本发明在干扰力作用下移件件受力示意图。 Figure 3 is a schematic view of the invention downward force member member in the interference force.

图中标号:1移动件、2导轨、3顶部导向面、4底部永久磁铁副、5侧部导向面、6侧部永久磁铁副。 FIG numeral: a movable member, the guide rail 2, the guide surface of the top 3, bottom 4 sub permanent magnet, the side guide surfaces 5, 6 sub-side portion of the permanent magnet.

以下通过具体实施方式对本发明作进一步描述:实施例:参见图1,本实施例是在移动件1的底部端面与导轨2的支承面之间,同性相对地安装一对底部永久磁铁副4,以底部永久磁铁副4形成的斥力保持移动件1的底部端面与导轨2的支承面之间处于非接触状态,并在移动件1与导轨2的顶部导向面3之间形成正压力;以移动件1与导轨2的一侧部端面为侧部导向面5,在与侧部导向面5相对的另一侧部端面上,同性相对地安装侧部永久磁铁副6,以侧部永久磁铁副6形成的斥力保持移动件1与导轨2在该侧部端面处于非接触状态,并在侧部导向面5上形成正压力。 The following by specific embodiments of the present invention is further described: Example: Referring to Figure 1, the present embodiment is between the support surface of the bottom end surface of the guide rail 2, the movable member 1, the sex opposite to install a bottom permanent magnet sub-4, in sub repulsive force permanent magnet 4 is formed at the bottom end surface of the guide rail holding the bottom member 1 in a non-contact state between the bearing surface 2, 3 and a positive pressure between the movable member 1 and the guide rail 2 of the top surface of the guide; to move side member 1 and the end surface of the guide rail 2 a side guide surface portion 5, the guide surfaces on the side portion opposite to the other end face 5 side portion, the side portion of the permanent magnet sub sex 6 mounted opposite to the side portion of the sub permanent magnet 6 repulsive force holding the movable member 1 is formed with the guide rail 2 side end surface portion in a non-contact state, and a positive pressure on the side portion guide surface 5.

滑动摩擦导轨经过长期的改革与发展,导向精度已能达到纳米量级,且在轻载、中低速情况下,导向精度稳定;其结构简单,易装配,本实施例中的结构形式继承了滑动导轨的导向原理和结构特点。 Friction sliding guide over a long period of reform and development, has guide precision can reach the order of nanometers, and light load, in the low speed, the guide accuracy and stability; simple structure, easy assembly, according to the present embodiment in the structure of embodiment inherited slide guide rails principles and structural features.

随着直线电机的研究与发展,与之原理上有相通之处的磁浮轴承与磁浮导轨也成为世界学术界研究的热点,且应用于磁悬浮车、磁悬浮工作台机床等。 With the research and development of linear motor, with whom the principle Maglev rail and maglev bearing similarities also become the focus of academic research in the world, and is used in magnetic levitation vehicles, magnetic levitation table machine tools. 虽然因电磁铁优良的可控性被广泛用于磁浮轴承与和磁浮导轨,但电网不稳定、外界力干扰等因素导致其难以实现高的导向精度和可靠性,同时为减小电磁铁发热对系统性能的影响,往往会使系统结构上变得非常复杂。 Although the electromagnet due to excellent controllability and are widely used in magnetic bearings and magnetic levitation rail, but the grid instability factors, as a result of external interference force which is difficult to achieve high accuracy and reliability of the guide, as well as to reduce the heat of the electromagnet affect system performance, often on the structure of the system will become very complicated. 因此国际上越来越多的科学家又把注意力转向造价低、结构简单、维修使用方便、不需要能源、不发热的永久磁铁,磁体同极间的斥力具有类似于压缩弹簧的特性。 Therefore, an increasing number of international scientists turned his attention to low-cost, simple structure, easy maintenance repulsion between, no energy, no heat of the permanent magnet, the magnet poles have the same characteristics similar to compression spring.

本实施例中,利用底部永久磁铁副4的正向加力,使移动体呈1悬浮状态,并与导轨2的顶部导向面3接触;利用侧部永久磁铁副6的侧向加力,使移动体1与导轨2的在侧部导向面5上相接触;具体实施中,在底部永久磁铁副4中,移动体1中的磁铁条为固定设置,导轨2中的磁铁条在高度位置上可调,通过改变永久磁铁副中一对磁铁之间的距离可改变斥力的大小;同时,移动体1中的磁铁宽度和长度均小于导轨2中的磁铁宽度和长度,以保证移动体1在任何工作位置,所受斥力的状态不变。 In this embodiment, the use of a permanent magnet forward biasing the base of the sub-4, the moving substantially a floating state and in contact with the top surface of the guide rail 2, 3; the use of the lateral sides of the permanent magnet 6 in the sub-energizing the a movable body contacting the guide rail 2 in the side surface portion 5 relative to the guide; specific embodiment, the sub permanent magnet in the bottom 4, the bar magnet moving body 1 is fixed, the magnetic stripe height position of the guide rail 2 on adjustable by changing the size of the permanent magnet repulsion may change a distance between a pair of sub-magnets; the same time, the magnet width and length of the magnet moving body 1 is less than the width and length of the rail 2, to ensure that the moving body 1 in any working position, suffered repulsion unchanged.

原理如图2、图3所示,图中f1、f2、f3为磁铁斥力,f4、f5和f6为导轨2的抑制力、f7为移动体1的重力,f8为干扰力。 The principle is shown, FIG. 3, FIG f1, f2, f3 a magnet repulsion, f4, f5 and f6 restraining force to the guide rail 2, F7 gravity of the moving body 1, f8 interference power. 正常工作时移动体1上的受力量值很小;受到干扰力f8的影响时,相应磁铁副能产生瞬态大量值的恢复力,使运动体快速恢复到正常工作状态。 By a small force magnitude on the moving body 1 during normal operation; f8 when subjected to the force disturbances, the corresponding sub-magnet can generate large restoring force instantaneous value, the moving body quickly restored to normal operation.

Claims (2)

1.高精度低摩擦磁浮-滑动复合导轨,其特征是:a、在移动件(1)的底部端面与导轨(2)的支承面之间,同性相对地安装底部永久磁铁副(4),以所述底部永久磁铁副(4)形成的斥力保持移动件(1)的底部端面与导轨(2)的支承面之间处于非接触状态,并在移动件(1)与导轨(2)的顶部导向面(3)之间形成正压力;b、以所述移动件(1)与导轨(2)的一侧部端面为侧部导向面(5),在与所述侧部导向面(5)相对的另一侧部端面上,同性相对地安装侧部永久磁铁副(6),以所述侧部永久磁铁副(6)形成的斥力保持移动件(1)与导轨(2)在该侧部端面处于非接触状态,并在侧部导向面(5)上形成正压力。 1. High-precision low friction maglev - compound slide rail, characterized in that: a, between the mobile element (1) at the bottom end surface of the guide rail (2) of the support surface, opposite sex sub permanent magnet is mounted at the bottom (4), in the bottom of the sub permanent magnet (4) is held in a non-repulsive force is formed between the mobile contact member (1) at the bottom end surface of the guide rail (2) of the support surface, and the movable member (1) and the guide rail (2) formed between the top guide surface (3) positive pressure; B, to the moving member (1) and the guide rail (2) to a side end surface portion side guide surface (5), on the side portion guide surface ( 5) opposite to the other side end surface portion, a permanent magnet mounted opposite sex vice (6) side portions, the side portion of the repulsive force to the permanent magnet pair (6) formed in the movable member holder (1) and the guide rail (2) the side end surface in a non-contact state, and is formed on the positive pressure side guide surface (5).
2.根据权利要求1所述的复合导轨,其特征是在所述底部永久磁铁副(4)中,处在移动体(1)中的磁铁条为固定设置,处在导轨(2)中的磁铁条在高度位置上可调。 2. The composite rail according to claim 1, wherein the sub permanent magnet in the bottom (4), in the moving body (1) a magnet strip is fixed, in the guide rail (2) Article magnet adjustable height position.
CN 200610039766 2006-04-12 2006-04-12 High-precision low-friction magnetic suspension sliding composite guid rail CN100530932C (en)

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CN100530932C CN100530932C (en) 2009-08-19

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100595541C (en) 2008-03-07 2010-03-24 合肥工业大学 Force and displacement amount air-float type measurement method
CN102189295A (en) * 2010-03-01 2011-09-21 罗伯特·博世有限公司 Sliding table saw having magnetic guide rail system
CN105945322A (en) * 2016-06-15 2016-09-21 江苏新光华机械有限公司 Machine tool for drilling step holes
CN105945323A (en) * 2016-06-15 2016-09-21 江苏新光华机械有限公司 Drilling machine tool with automatically adjustable center distance
CN106672855A (en) * 2017-01-11 2017-05-17 合肥工业大学 Post lift magnetic levitation synchronous guiding and state monitoring device and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2408535Y (en) 2000-01-28 2000-11-29 刘俊生 Maglev rail
CN100418699C (en) 2003-05-14 2008-09-17 鸿富锦精密工业(深圳)有限公司;鸿海精密工业股份有限公司 Guide rail for processing machine
CN2747093Y (en) 2004-11-08 2005-12-21 西南交通大学 Permanent magnetism rail system for high-temp. superconductivity magnetic suspension train

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100595541C (en) 2008-03-07 2010-03-24 合肥工业大学 Force and displacement amount air-float type measurement method
CN102189295A (en) * 2010-03-01 2011-09-21 罗伯特·博世有限公司 Sliding table saw having magnetic guide rail system
CN105945322A (en) * 2016-06-15 2016-09-21 江苏新光华机械有限公司 Machine tool for drilling step holes
CN105945323A (en) * 2016-06-15 2016-09-21 江苏新光华机械有限公司 Drilling machine tool with automatically adjustable center distance
CN105945323B (en) * 2016-06-15 2017-11-21 江苏新光华机械有限公司 A kind of self-adjustable drilling hole machine tool of centre-to-centre spacing
CN105945322B (en) * 2016-06-15 2018-06-05 江苏新光华机械有限公司 For boring the lathe of stepped hole
CN106672855A (en) * 2017-01-11 2017-05-17 合肥工业大学 Post lift magnetic levitation synchronous guiding and state monitoring device and method
CN106672855B (en) * 2017-01-11 2019-04-09 合肥工业大学 A kind of post lift magnetic suspension synchronization steering and state monitoring apparatus and method

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