CN1852019A - High-precision low-friction magnetic suspension sliding composite guid rail - Google Patents
High-precision low-friction magnetic suspension sliding composite guid rail Download PDFInfo
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- 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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- face
- guide rail
- sidepiece
- permanent magnet
- moving member
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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
Technical field:
The present invention relates to linear motion guide device, the guide rail of more specifically saying so.
Background technology:
The performance of processing equipment and length measuring instrument is all inseparable with the guide rail characteristic, and modern machine and high precision instrument require guide rail can satisfy rapid movement and hi-Fix.Traditional sliding rail structure is simple, good rigidly, bearing capacity are strong, but because of coefficient of friction is big, so big to lubricated requirement height, energy consumption, movement velocity is restricted; Traditional rolling guide coefficient of friction is little, caloric value is little, the life-span is longer, but rigidity is poor, bearing capacity is low, be difficult to realize high guiding accuracy and kinetic stability, and easily produces vibration and noise during high speed; The air-float guide rail development in recent years is very fast, its friction, noise, vibration are all very little, guiding accuracy height, life-span be long, can realize high-speed motion, need not lubricate, but bearing capacity is low, complex structure, cost of manufacture height, can't be used for vacuum environment, also need consider to discharge the interference of air-flow to measuring system; Magnetically suspended guide rail is another novel guide rail that developed recently gets up, and its bearing capacity is big, and friction, noise, vibration are little, and be unrestricted to the speed of service, need not lubricate, and when adopting electromagnet, to the environment no requirement (NR), motion and the adjustable easy control of system performance; But system configuration complexity, cost of manufacture height, unstable properties, guiding accuracy influence wayward, the electromagnet heating are difficult to overcome.So when design modern machine and high precision instrument, select any guide rail for use, all be difficult to satisfy simultaneously the requirement of each side such as carrying, high speed or low speed, high stability, high guiding accuracy, low cost, become the bottleneck that improves lathe and instrument cost performance.
Summary of the invention:
The present invention is for avoiding above-mentioned existing in prior technology weak point, provide a kind of with rail plate combine with Magnetically suspended guide rail, high accuracy low-friction magnetic suspension sliding composite guid rail simple in structure.
The technical scheme that technical solution problem of the present invention is adopted is:
Design feature of the present invention is between the bearing-surface of the bottom end face of moving member and guide rail, the same sex is the mounting permanent magnet pair relatively, keep with the secondary repulsion that forms of described permanent magnet being in contactless state between the bearing-surface of the bottom end face of moving member and guide rail, and between the top guide face of moving member and guide rail, form normal pressure;
Sidepiece end face with described moving member and guide rail is the sidepiece spigot surface, on the other side end face relative with described sidepiece spigot surface, the same sex is the mounting permanent magnet pair relatively, keep moving member and guide rail to be in contactless state with the secondary repulsion that forms of described permanent magnet, and on the sidepiece spigot surface, form normal pressure at this sidepiece end face.
Design feature of the present invention also is in the permanent magnet pair of described bottom, is in magnet strip in the moving body for fixedly installing, and the magnet strip that is in the guide rail is adjustable on height and position.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention had both inherited the advantage that sliding rail structure is simple, cost of manufacture is low, steering capability is stable, had both again that Magnetically suspended guide rail friction is little, vibration and interference resistance strong, be not prone to good characteristic such as creep during low speed, make guide rail can satisfy the requirement that kinetic characteristic is good and guiding accuracy is high simultaneously, and have stronger load adaptation and anti-vibration ability.
2, guiding accuracy of the present invention is by the machining accuracy decision of top guide face and sidepiece spigot surface; Because on the non-spigot surface of movement parts and guide rail, the same sex has relatively been installed the permanent magnet pair, the repulsion of giving birth to the permanent magnet by-product overcomes movement parts weight and to imposing certain normal pressure on the spigot surface, guarantees movement parts and reliable contact of guide rail on spigot surface; The present invention can be by suitably being provided with the spacing between the permanent magnet pair, thereby make moving member and guide rail be in critical contact condition on spigot surface, but not spigot surface is in contactless state, thereby reduce the frictional force between guide rail and the moving member greatly.
3, the present invention can make guide rail have different guiding accuracies by the selection of spigot surface form tolerance grade; By adjusting the relative position between the magnet pair, can change the repulsion size, make guide rail adapt to different load; The rigidity of Magnetically suspended guide rail changes along with the change in gap between magnet, can resist the vibration of different frequency; Therefore this guide rail has very strong adaptivity.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the stressed schematic diagram of moving member under the normal operating conditions of the present invention.
Fig. 3 moves down the stressed schematic diagram of part spare for the present invention in the perturbed force effect.
Number in the figure: 1 moving member, 2 guide rails, 3 top guide faces, 4 bottom permanent magnet pairs, 5 sidepiece spigot surfaces, 6 sidepiece permanent magnet pairs.
Below by embodiment the present invention is further described:
Embodiment:
Referring to Fig. 1, present embodiment is between the bearing-surface of the bottom end face of moving member 1 and guide rail 2, the same sex is relatively installed a pair of bottom permanent magnet pair 4, the repulsion that forms with bottom permanent magnet secondary 4 keeps being in contactless state between the bearing-surface of the bottom end face of moving member 1 and guide rail 2, and forms normal pressure between the top guide face 3 of moving member 1 and guide rail 2;
Sidepiece end face with moving member 1 and guide rail 2 is a sidepiece spigot surface 5, on the other side end face relative with sidepiece spigot surface 5, the same sex is relatively installed sidepiece permanent magnet pair 6, the repulsion that forms with sidepiece permanent magnet secondary 6 keeps moving member 1 and guide rail 2 to be in contactless state at this sidepiece end face, and forms normal pressure on sidepiece spigot surface 5.
The sliding friction guide rail is through long-term reform and development, and guiding accuracy can reach nanometer scale, and under underloading, middle low speed situation, guiding accuracy is stable; It is simple in structure, easily assembling, and the version in the present embodiment has been inherited the guiding principle and the design feature of rail plate.
Along with the research and development of linear electric motors, there are magnetic bearing of the part of communicating and Magnetically suspended guide rail also to become the focus of world academia research with it on the principle, and are applied to magnetically supported vehicle, magnetic suspension workbench lathe etc.Though because of the good controllability of electromagnet be widely used in magnetic bearing with and Magnetically suspended guide rail, but factors such as electrical network instability, extraneous power interference cause it to be difficult to realize high guiding accuracy and reliability, for reducing the influence of electromagnet heating, tend to make become very complicated on the system configuration simultaneously to systematic function.Therefore increasing in the world scientist turns to attentiveness that cost is low, simple in structure, maintenance is easy to use, do not need the energy, athermic permanent magnet again, and magnet has the characteristic that is similar to the compression spring with the repulsion of interpolar.
In the present embodiment, utilize the forward reinforcing of bottom permanent magnet pair 4, make moving body be 1 suspended state, and contact with the top guide face 3 of guide rail 2; Utilize the side direction reinforcing of sidepiece permanent magnet pair 6, make on sidepiece spigot surface 5, contacting of moving body 1 and guide rail 2; In concrete the enforcement, in bottom permanent magnet pair 4, the magnet strip in the moving body 1 is for fixedly installing, and the magnet strip in the guide rail 2 is adjustable on height and position, can change the size of repulsion by the distance between the pair of magnet in the change permanent magnet pair; Simultaneously, magnet width in the moving body 1 and length are all less than magnet width and length in the guide rail 2, and to guarantee moving body 1 in any service position, the state of suffered repulsion is constant.
Principle such as Fig. 2, shown in Figure 3, f1, f2, f3 are magnet repulsion among the figure, and f4, f5 and f6 are that restraint, the f7 of guide rail 2 is the gravity of moving body 1, and f8 is a perturbed force.Stressed value during operate as normal on the moving body 1 is very little; During the influencing of the power that is interfered f8, the respective magnets pair can produce the restoring force of the big value of transient state, makes movable body quickly recover to normal operating conditions.
Claims (2)
1, high accuracy low-friction magnetic suspension sliding composite guid rail is characterized in that:
A, between the bearing-surface of the bottom end face of moving member (1) and guide rail (2), the same sex is relatively installed bottom permanent magnet pair (4), the repulsion that forms with described bottom permanent magnet pair (4) keeps being in contactless state between the bearing-surface of the bottom end face of moving member (1) and guide rail (2), and forms normal pressure between the top guide face (3) of moving member (1) and guide rail (2);
B, be sidepiece spigot surface (5) with a sidepiece end face of described moving member (1) and guide rail (2), on the other side end face relative with described sidepiece spigot surface (5), the same sex is relatively installed sidepiece permanent magnet pair (6), the repulsion that forms with described sidepiece permanent magnet pair (6) keeps moving member (1) and guide rail (2) to be in contactless state at this sidepiece end face, and goes up the formation normal pressure at sidepiece spigot surface (5).
2, composite guide rails according to claim 1 is characterized in that in described bottom permanent magnet pair (4), is in magnet strip in the moving body (1) for fixedly installing, and the magnet strip that is in the guide rail (2) is adjustable on height and position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100397666A CN100530932C (en) | 2006-04-12 | 2006-04-12 | High-precision low-friction magnetic suspension sliding composite guid rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100397666A CN100530932C (en) | 2006-04-12 | 2006-04-12 | High-precision low-friction magnetic suspension sliding composite guid rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1852019A true CN1852019A (en) | 2006-10-25 |
| CN100530932C CN100530932C (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100397666A Expired - Fee Related CN100530932C (en) | 2006-04-12 | 2006-04-12 | High-precision low-friction magnetic suspension sliding composite guid rail |
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| CN (1) | CN100530932C (en) |
Cited By (8)
| 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 |
| CN110711954A (en) * | 2019-11-12 | 2020-01-21 | 庄爱妹 | Large-scale integrated laser cutting equipment based on transformation walking waste material reprocessing |
| CN114352637A (en) * | 2021-12-28 | 2022-04-15 | 大连理工大学 | Device for intelligently controlling positive pressure acting on guide rail surface by adopting electromagnetic force |
| CN115014683A (en) * | 2022-08-09 | 2022-09-06 | 太原理工大学 | Three-component standard vibration table based on magnetic suspension decoupling device |
-
2006
- 2006-04-12 CN CNB2006100397666A patent/CN100530932C/en not_active Expired - Fee Related
Cited By (14)
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN110711954A (en) * | 2019-11-12 | 2020-01-21 | 庄爱妹 | Large-scale integrated laser cutting equipment based on transformation walking waste material reprocessing |
| CN110711954B (en) * | 2019-11-12 | 2021-06-04 | 江苏威扬重工科技有限公司 | Large-scale integrated laser cutting equipment based on transformation walking waste material reprocessing |
| CN114352637A (en) * | 2021-12-28 | 2022-04-15 | 大连理工大学 | Device for intelligently controlling positive pressure acting on guide rail surface by adopting electromagnetic force |
| CN114352637B (en) * | 2021-12-28 | 2022-12-20 | 大连理工大学 | Device for intelligently controlling positive pressure acting on guide rail surface by adopting electromagnetic force |
| CN115014683A (en) * | 2022-08-09 | 2022-09-06 | 太原理工大学 | Three-component standard vibration table based on magnetic suspension decoupling device |
| CN115014683B (en) * | 2022-08-09 | 2022-11-11 | 太原理工大学 | Three-component standard vibration table based on magnetic suspension decoupling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100530932C (en) | 2009-08-19 |
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