JPH0348013A - Bearing device - Google Patents
Bearing deviceInfo
- Publication number
- JPH0348013A JPH0348013A JP18116989A JP18116989A JPH0348013A JP H0348013 A JPH0348013 A JP H0348013A JP 18116989 A JP18116989 A JP 18116989A JP 18116989 A JP18116989 A JP 18116989A JP H0348013 A JPH0348013 A JP H0348013A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- slider
- sliding surface
- guide shaft
- sprayed film
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 abstract description 17
- 238000000576 coating method Methods 0.000 abstract description 17
- 230000008439 repair process Effects 0.000 abstract description 9
- 238000005498 polishing Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 8
- 238000007751 thermal spraying Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Bearings For Parts Moving Linearly (AREA)
- Coating By Spraying Or Casting (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野Ｊ
本発明は軸受装置に関する。すなわち、スライダの軸受
は部がガイドテーブルのガイド軸により摺動して案内さ
れ、もってスライダがガイドテーブル上を自由に移動し
、加工台や搬送台その他各種の用途に用いられる軸受装
置に関するものであ「従来の技術Ｊ
従来のこの種軸受装置は、次のごとくなっていた。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application J] The present invention relates to a bearing device. In other words, the slider bearing is a bearing device in which the part slides and is guided by the guide shaft of the guide table, so that the slider moves freely on the guide table, and is used for processing tables, conveyance tables, and various other uses. A: Conventional technology J This kind of conventional bearing device was as follows.
まず第１に、金属製の軸受装置が一般に広く用いられて
いた。すなわち、鋳鉄、炭素網、アルミニウム合金等の
金属材料を用い、これを切削加工することにより所定形
状のスライダやガイドテーブルが成形されていた。First of all, metal bearing devices were generally widely used. That is, sliders and guide tables of predetermined shapes have been formed by cutting metal materials such as cast iron, carbon mesh, and aluminum alloys.
第２に、更にその摺動面を硬質セラミ・ンクスでコーテ
ィングしてなる軸受装置もあった。すなわち、金属製の
スライダの軸受は部の摺動面やガイドテーブルのガイド
軸の摺動面を、電着法や溶射法により硬質セラミックス
化してなるものもあった。Secondly, there was also a bearing device whose sliding surface was coated with hard ceramic ink. In other words, some metal slider bearings have their sliding surfaces and the sliding surfaces of the guide shafts of guide tables made of hard ceramic by electrodeposition or thermal spraying.
「発明が解決しようとする課題」
ところでこのような従来の軸受装置にあっては、次の問
題が指摘されていた。"Problems to be Solved by the Invention" By the way, the following problems have been pointed out in such conventional bearing devices.
まず前記第１の金属製の軸受装置については、次のとお
り。すなわち、そのスライダの軸受は部の摺動面やガイ
ドテーブルのガイド軸の摺動面等は、硬度と剛性が低い
ので摩耗しゃすく又摩擦熱による腐蝕も発生しやすい等
耐久性に問題があった。First, the first metal bearing device is as follows. In other words, the sliding surfaces of the slider bearings and the sliding surfaces of the guide shaft of the guide table have low hardness and rigidity, so they are prone to wear and corrosion due to frictional heat, which poses durability problems. Ta.
又前記第２の更に摺動面を硬質セラミックスでコーティ
ングしてなる軸受装置については、次のとおり。すなわ
ちこのものにあっては、硬質セラミックスの高い硬度と
剛性により耐摩耗性および耐腐蝕性に優れている等、耐
久性に優れ、上記第１の従来例の問題点は解決される。The second bearing device in which the sliding surface is further coated with hard ceramics is as follows. That is, this product has excellent durability such as excellent wear resistance and corrosion resistance due to the high hardness and rigidity of the hard ceramic, and the problems of the first conventional example described above are solved.
しかしながらこのようなスライダの軸受は部やガイドテ
ーブルのガイド軸等の摺動面は、硬質セラミックスの存
在により研磨が容易でなく又破損や摩、詫時における補
修に手間がかかる等の問題が生じていた。However, the sliding surfaces of such slider bearings and guide shafts of guide tables are not easy to polish due to the presence of hard ceramics, and problems such as damage, wear, and time-consuming repairs occur. was.
従来例ではこのような点が指摘されていた。This point was pointed out in the conventional example.
本発明は、このような実情に鑑み上記従来例の問題点を
解決すべくなされたものであって、摺動面を下から順に
金属ボンドの溶射膜、硬質セラミックスの溶射膜、軟質
セラミックスの溶射膜の３層構造にて被覆してなること
により、硬度と剛性が高く、耐摩耗性および耐腐蝕性に
も優れ、更に研磨および補修が容易で、スライダの移動
も常時滑らかな、軸受装置を提案することを目的とする
。In view of these circumstances, the present invention has been made to solve the problems of the conventional methods described above. By coating with a three-layer membrane structure, the bearing device has high hardness and rigidity, excellent wear resistance and corrosion resistance, is easy to polish and repair, and the slider always moves smoothly. The purpose is to make suggestions.
「課題を解決するための手段」
この目的を達成する本発明の技術的手段は、次のとおり
である。"Means for Solving the Problem" The technical means of the present invention to achieve this object are as follows.
この軸受装置は、金属製のスライダの軸受は部が、金属
製のガイドテーブルの該軸受は部に対応する形状のガイ
ド軸により摺動して案内され、もって該スライダが、該
ガイドテーブル上を移動するようになっている。In this bearing device, the bearing of the metal slider is slid and guided by a guide shaft having a shape corresponding to the bearing of the metal guide table, so that the slider moves on the guide table. It is supposed to move.
そして該軸受は部と該ガイド軸のうち少なくともいずれ
か一方の摺動面は、金属ボンドの溶射膜。The sliding surface of at least one of the bearing and the guide shaft is coated with a sprayed metal bond.
硬質セラミックスの溶射膜、軟質セラミックスの溶射膜
により、下から順に被覆されている。It is coated with a hard ceramic sprayed film and a soft ceramic sprayed film in order from the bottom.
「作 用」
本発明は、このような手段よりなるので次のごとく作用
する。"Function" Since the present invention consists of such means, it works as follows.
すなわちこの軸受装置は、金属製のスライダの軸受は部
の摺動面が、金属製のガイドテーブルのガイド軸の摺動
面により摺動して案内され、もってスライダがガイドテ
ーブル上を自由に移動し、加工台や搬送台その他として
使用される。そしてその軸受は部とガイド軸のうち少な
くともいずれか一方の摺動面が、下から順に金属ボンド
の溶射膜、硬質セラミックスの溶射膜、軟質セラミック
スの溶射膜の３層構造にて被覆されている。In other words, in this bearing device, the sliding surface of the bearing of the metal slider slides and is guided by the sliding surface of the guide shaft of the metal guide table, so that the slider can move freely on the guide table. It is also used as a processing table, transport table, etc. The sliding surface of at least one of the bearing and the guide shaft is coated with a three-layer structure consisting of a sprayed metal bond film, a hard ceramic sprayed film, and a soft ceramic sprayed film in order from the bottom. .
そこで第１に、摺動面は接合力が強い金属ボンドの溶射
膜を介し硬質セラミックスの溶射膜にて被覆されている
ので、その硬度と剛性が高められている。First, since the sliding surface is coated with a hard ceramic sprayed film via a metal bond sprayed film with strong bonding strength, its hardness and rigidity are increased.
第２に、そこでこの摺動面は、摩耗しにくく又摩擦熱に
よる腐蝕も少ない。Secondly, this sliding surface is less prone to wear and corrosion due to frictional heat.
第３に、更に硬質セラミックスの溶射膜上を軟質セラミ
ックスの溶射膜が覆っているので、摺動面表面の研磨は
容易である。又破損や摩擦時において、その補修のため
の肉盛り溶射や研磨加工等も容易である。Thirdly, since the hard ceramic sprayed film is covered with the soft ceramic sprayed film, polishing of the sliding surface is easy. Furthermore, in the event of damage or friction, it is easy to perform overlay thermal spraying, polishing, etc. for repair.
特に摺動面における破損や摩耗の発生は、下の硬質セラ
ミックスの溶射膜には及ばず、上の軟質セラミックスの
溶射膜のみに押さえられるので、その補修は、係る軟質
セラミックスの溶射膜についてのみ行えばよい。In particular, damage and wear on the sliding surfaces will not affect the lower hard ceramic sprayed coating, but will be suppressed only to the upper soft ceramic sprayed coating, so repairs should only be made to the soft ceramic sprayed coating. That's fine.
第４に、スライダの軸受は部とガイドテーブルのガイド
軸等の摺動面間に潤滑油を介在させる方式の場合、硬質
セラミックスの溶射膜そして特に軟質セラミックスの溶
射膜に存する多くの気孔が、油溜りとなる。そこで油の
補給回数が少なくても、潤滑性は落ちない。Fourth, in the case of a system in which lubricating oil is interposed between the sliding surface of the slider bearing and the guide shaft of the guide table, the large number of pores present in the thermal sprayed coating of hard ceramics, and especially the thermal sprayed coating of soft ceramics, It becomes an oil puddle. Therefore, even if the number of oil refills is small, the lubricity will not deteriorate.
又両者の摺動面間に多数のベアリングを介在させる方式
の場合も、ベアリングは軟質セラミックスの溶射膜と当
接するので破損しにくい。Also, in the case of a system in which a large number of bearings are interposed between the two sliding surfaces, the bearings are not easily damaged because they come into contact with the sprayed coating of soft ceramics.
「実 施 例」
以下本考案を、図面に示すその実施例に基づいて詳細に
説明する。``Example'' The present invention will be described in detail below based on the example shown in the drawings.
まずその構成等について説明する。First, its configuration etc. will be explained.
第１図は、本発明の実施例を示す要部の正断面図である
。第２図は、他の実施例を示す要部の正断面図である。FIG. 1 is a front sectional view of essential parts showing an embodiment of the present invention. FIG. 2 is a front sectional view of main parts showing another embodiment.
この軸受装置は、スライダ１の軸受は部２が、ガイドテ
ーブル３の該軸受は部２に対応する形状のガイド軸４に
より摺動して案内され・もってスライダ１が、ガイドテ
ーブル３上を移動するようになっている。In this bearing device, the bearing of the slider 1 is guided by a portion 2, and the bearing of the guide table 3 is slid and guided by a guide shaft 4 having a shape corresponding to the portion 2, so that the slider 1 moves on the guide table 3. It is supposed to be done.
まずスライダ１およびガイドテーブル３は、金属製より
なる。すなわち、例えば鋳鉄、炭素鋼。First, the slider 1 and the guide table 3 are made of metal. i.e. cast iron, carbon steel, for example.
アルミニウム合金等の金属材料が所定形状に切削加工さ
れてなり、全体的な加工性と剛性１強度に優れてなる。It is made by cutting a metal material such as an aluminum alloy into a predetermined shape, and has excellent overall workability, rigidity, and strength.
そしてスライダ１は肉厚の略平板状をなし、その下面に
直線的な軸受は部２が一体形成されている。ガイドテー
ブル３は、スライダ１より長くかつ肉厚の略平板状をな
し、その上面に直線的なガイド軸４が一体形成されてい
る。このようにスライダ１に設けられた軸受は部２とガ
イドテーブル３に設けられたガイド軸４とは、凹凸等の
対応する形状および位置よりなり、相互に密に嵌合しか
つ長手方向に摺動自在となっている。The slider 1 has a substantially flat plate shape with a thick wall, and a linear bearing portion 2 is integrally formed on the lower surface of the slider 1. The guide table 3 has a generally flat plate shape that is longer and thicker than the slider 1, and has a linear guide shaft 4 integrally formed on its upper surface. As described above, the bearing part 2 provided on the slider 1 and the guide shaft 4 provided on the guide table 3 have corresponding shapes and positions, such as unevenness, and fit tightly into each other and slide in the longitudinal direction. It is free to move.
このような軸受は部２とガイド軸４等の摺動面の形状と
しては、断面四角状、断面三角状、断面円形状、その他
各種形状のものが考えられ、このような特殊な形状を備
えてなることにより、スライダ１の移動精度の向上が図
られている。In such a bearing, the shape of the sliding surfaces of the part 2 and the guide shaft 4, etc. can be square, triangular, circular, or various other shapes. By doing so, the movement accuracy of the slider 1 is improved.
さてこのようなスライダ１の軸受は部２とガイドテーブ
ル３のガイド軸４のうち、少なくともいずれか一方の摺
動面は、金属ボンドの溶射膜Ａ。Now, the sliding surface of at least one of the bearing section 2 and the guide shaft 4 of the guide table 3 of the slider 1 is coated with a sprayed coating A of metal bond.
硬質セラミックスの溶射膜Ｂ、軟質セラミックスの溶射
膜Ｃにより、下から順に被覆されている。It is coated with a hard ceramic sprayed film B and a soft ceramic sprayed film C in order from the bottom.
すなわち第１図の実施例では、軸受は部２とガイド軸４
の摺動面がともにこのような３層構造にて被覆され、第
２図の他の実施例では、軸受は部２のみがこのような３
層構造にて被覆されている。In other words, in the embodiment shown in FIG.
In the other embodiment shown in FIG. 2, only part 2 of the bearing is coated with such a three-layer structure.
Covered with a layered structure.
まず金属ボンドの溶射膜Ａは、ニッケル系、クロム系等
の合金が溶射機により、軸受は部２．ガイド軸４等に対
し数μｍの厚さで溶射されてなり、これらと次の硬質セ
ラミックスの溶射膜Ｂ等とを強力に接合するボンドコー
トとして機能する。次に硬質セラミックスの溶射膜Ｂは
、アルミナ等の硬質セラミックスを溶射機により、この
金属ボンドの溶射膜Ａ上に溶射して形成される。更に軟
質セラミックスの溶射膜Ｃは、硬質セラミックスの溶射
膜Ｂに比べ比較的軟質であり、チタニア等の軟質セラミ
ックスを溶射機により、この硬質セラミックスの溶射膜
Ｂ上に溶射して形成される。First, the thermal sprayed film A of the metal bond is made of a nickel-based, chromium-based, etc. alloy by a thermal spraying machine, and the bearing is coated with a metal bond in the section 2. It is thermally sprayed to a thickness of several μm onto the guide shaft 4, etc., and functions as a bond coat to strongly bond these to the next thermally sprayed coating B of hard ceramics, etc. Next, a hard ceramic sprayed film B is formed by spraying a hard ceramic such as alumina onto the metal bond sprayed film A using a thermal spraying machine. Further, the soft ceramic sprayed film C is relatively softer than the hard ceramic sprayed film B, and is formed by spraying a soft ceramic such as titania onto the hard ceramic sprayed film B using a thermal spraying machine.
なお軟質セラミックスの溶射膜Ｃの表面は、所定の表面
精度を得べくラッピング等にて研磨されてなる。又軸受
は部２．ガイド軸４等の摺動面の形状が複雑特殊で、こ
れらの溶射が容易でない場合には、予めこのような軸受
は部２．ガイド軸４等をそれぞれ分割して形成し、これ
らの溶射終了後に、各々をボルト等により一体的に組み
立てるようにするとよい。Note that the surface of the soft ceramic sprayed film C is polished by lapping or the like in order to obtain a predetermined surface precision. Also, the bearing is part 2. If the shape of the sliding surface of the guide shaft 4 or the like is complex and special, and it is not easy to spray them, then such bearings should be prepared in advance using Section 2. It is preferable that the guide shaft 4 and the like be formed separately, and then assembled integrally with bolts or the like after the thermal spraying is completed.
なお、スライダ１は手動により又は駆動機構を付設する
ことにより、ガイドテーブル３上を移動する。又このよ
うな移動を摩擦抵抗が少なく滑らかに行うため、両者の
軸受は部２とガイド軸４との摺動面間に、潤滑油５によ
る油膜層を介在させる方式、多数のベアリングを介在さ
せる方式、静圧空気層を介在させる方式、その他の方式
が適宜とられる。Note that the slider 1 is moved on the guide table 3 manually or by providing a drive mechanism. In order to perform such movement smoothly with less frictional resistance, both bearings are provided with an oil film layer of lubricating oil 5 between the sliding surfaces of the part 2 and the guide shaft 4, and a large number of bearings are provided. A method using a static pressure air layer, and other methods may be used as appropriate.
第１図の実施例にあっては、潤滑油５による油膜層を介
在させる方式が採用され、スライダ１の軸受は部２側を
被覆する軟質セラミックスの溶射膜Ｃと、ガイドテーブ
ル３のガイド軸４側を被覆する軟質セラミックスの溶射
膜Ｃ間に、このような潤滑油５による油膜層が設けられ
ている。又第２図の実施例にあっては、多数のベアリン
グ６を介在させる方式が採用され、ガイドテーブル３の
ガイド軸４の摺動面に多数配設された鋼球たるベアリン
グ６が、ころがり軸受として機能し、スライダ１の軸受
は部２側を被覆する軟質セラミックスの溶射膜Ｃと当接
している。なお静圧空気層を介在させる方式は、別途設
けられた空気圧源からの圧縮空気が、スライダ１そして
その軸受は部２に形成された導通路、又はガイドテーブ
ル３そしてそのガイド軸４に形成された導通路を介し、
それらの摺動面に形成された噴出口から軸受は部２とガ
イド軸４間に噴出されることにより行われる。In the embodiment shown in FIG. 1, a method is adopted in which an oil film layer of lubricating oil 5 is interposed, and the bearing of the slider 1 is coated with a soft ceramic sprayed film C covering the part 2 side and the guide shaft of the guide table 3. An oil film layer of such lubricating oil 5 is provided between the soft ceramic sprayed films C covering the 4 sides. In the embodiment shown in FIG. 2, a system in which a large number of bearings 6 are interposed is adopted, and a large number of steel ball bearings 6 arranged on the sliding surface of the guide shaft 4 of the guide table 3 act as rolling bearings. The bearing of the slider 1 is in contact with a soft ceramic sprayed film C covering the part 2 side. Note that in the method in which a static air layer is provided, compressed air from a separately provided air pressure source is applied to the slider 1 and its bearing through a conductive path formed in the slider 1 and its bearing section 2, or in the guide table 3 and its guide shaft 4. through a conductive path,
The bearing is ejected between the portion 2 and the guide shaft 4 from ejection ports formed on the sliding surfaces thereof.
又このようなスライダ１とガイドテーブル３とを１組と
し、更にこれらを複数組上下にその移動方向を変えて重
ねた多重構造とすることにより、複数の方向に自在に移
動可能な複雑な軸受装置が容易に得られる。例えば直角
に移動方向を変えて上下に２組重ねることにより、いわ
ゆるＸ−Ｙ駆動テーブルたる軸受装置が得られる。Furthermore, by forming a set of the slider 1 and guide table 3, and creating a multilayered structure in which multiple sets of these are stacked one above the other with different moving directions, a complex bearing that can freely move in multiple directions can be created. The device is easily obtained. For example, by changing the direction of movement at right angles and stacking two sets one above the other, a bearing device that is a so-called XY drive table can be obtained.
以上が構成等の説明である。The above is the explanation of the configuration, etc.
以下その作動等について説明する。The operation etc. will be explained below.
この軸受装置にあっては、金属製のスライダｌの軸受は
部２の摺動面が、金属製のガイドテーブル３のガイド軸
４の摺動面により摺動して案内され、もってスライダ１
が、ガイドテーブル３上を自由に直線的に移動する。そ
してスライダ１の上面に対象物を載せ、その加工台や搬
送台その他として使用される。In this bearing device, the sliding surface of the portion 2 of the bearing of the metal slider l is slid and guided by the sliding surface of the guide shaft 4 of the metal guide table 3, so that the slider l
moves freely and linearly on the guide table 3. An object is placed on the top surface of the slider 1, and the slider 1 is used as a processing table, a conveyance table, or the like.
さてここでこの軸受装置は、スライダ１の軸受は部２と
ガイドテーブル３のガイド軸４のうち少な（ともいずれ
か一方の摺動面が、下から順に金属ボンドの溶射膜Ａ、
硬質セラミックスの溶射膜Ｂ、軟質セラミックスの溶射
膜Ｃの３層構造にて被覆されている。つまり第１図の実
施例では、軸受は部２とガイド軸４の摺動面がともに、
第２図の他の実施例では軸受は部２のみが、このような
３層構造にて被覆されている。そこでこの軸受装置にあ
っては、次の第１．第２．第３．第４のごとくなる。Now, in this bearing device, the bearing of the slider 1 is the smaller of the bearing part 2 and the guide shaft 4 of the guide table 3 (the sliding surface of either one is, in order from the bottom, the sprayed coating A of the metal bond,
It is coated with a three-layer structure of a hard ceramic sprayed film B and a soft ceramic sprayed film C. In other words, in the embodiment shown in FIG. 1, both the sliding surfaces of the bearing part 2 and the guide shaft 4 are
In the other embodiment shown in FIG. 2, only part 2 of the bearing is covered with such a three-layer structure. Therefore, in this bearing device, the following 1. Second. Third. It will be like the fourth one.
第１に、スライダｌの軸受は部２．ガイドテーブル２の
ガイド軸４等の摺動面は、接合力が強い金属ボンドの溶
射膜Ａを介し硬質セラミックスの溶射膜Ｂにて被覆され
ているので、その硬度と剛性が高められている。First, the bearing of slider l is part 2. The sliding surfaces of the guide shaft 4 and the like of the guide table 2 are coated with a hard ceramic sprayed film B via a metal bond sprayed film A with strong bonding strength, thereby increasing its hardness and rigidity.
第２に、そこで軸受は部２．ガイド軸４等の摺動面は、
摩耗しにくく又摩擦熱による腐蝕も少ない。Secondly, there the bearing is part 2. The sliding surface of the guide shaft 4 etc.
Less prone to wear and less corrosion due to frictional heat.
第３に、更に軸受は部２．ガイド軸４等の摺動面におい
ては、このような硬質セラミックスの溶射膜Ｂを軟質セ
ラミックスの溶射膜Ｃが覆っているので、摺動面表面の
研磨は容易である。又破損や摩耗時において、その補修
のための肉盛り溶射や研磨加工等も容易である。Thirdly, the bearing is also part 2. On the sliding surfaces of the guide shaft 4 and the like, since the hard ceramic sprayed film B is covered with the soft ceramic sprayed film C, polishing of the sliding surface is easy. Furthermore, in the event of damage or wear, it is easy to perform overlay thermal spraying, polishing, etc. for repair.
特に摺動面における破損や摩耗の発生は、このように下
の硬質セラミックスの溶射膜Ｂには及ばず、上の軟質セ
ラミックスの溶射膜Ｃのみに押さえられる。もってその
補修は、係る軟質セラミックスの溶射膜Ｃについてのみ
行えばよい。In particular, the occurrence of damage or wear on the sliding surface does not affect the lower hard ceramic sprayed coating B, but is suppressed only to the upper soft ceramic sprayed coating C. Therefore, the repair only needs to be performed on the thermally sprayed film C of the soft ceramic.
第４に、第１図の実施例のごとく、スライダ１の軸受は
部２とガイドテーブル３のガイド軸４との摺動面間に、
潤滑油５の油膜層を介在させる方式の場合は、次のごと
くなる。すなわち、硬質セラミックスの溶射膜Ｂそして
特に軟質セラミックスの溶射膜Ｃに存する多くの気孔が
油溜りとなるので、潤滑油５の補給回数が少なくても潤
滑性は落ちない。Fourthly, as in the embodiment shown in FIG.
In the case of a method in which an oil film layer of lubricating oil 5 is interposed, the situation is as follows. That is, since many pores existing in the hard ceramic sprayed film B and especially the soft ceramic sprayed film C become oil pools, the lubricity does not deteriorate even if the number of times the lubricating oil 5 is replenished is small.
他方第２図の他の実施例のごとく、軸受は部２とガイド
軸４との摺動面間に多数のベアリング６を介在させる方
式の場合、このガイド軸４側のベアリング６は、軸受は
部２側の軟質セラミックスの溶射膜Ｃと当接するので、
損傷しにくい。On the other hand, as in the other embodiment shown in FIG. Since it comes into contact with the soft ceramic sprayed film C on the part 2 side,
Not easy to damage.
以上が作動等の説明である。The above is the explanation of the operation, etc.
「発明の効果」
本発明に係る軸受装置は、以上説明したごとく、摺動面
を下から順に金属ボンドの溶射膜、硬質セラミックスの
溶射膜、軟質セラミックスの溶射膜の３層構造にて被覆
してなることにより、次の効果を発揮する。"Effects of the Invention" As explained above, in the bearing device according to the present invention, the sliding surface is coated with a three-layer structure consisting of a metal bond sprayed film, a hard ceramic sprayed film, and a soft ceramic sprayed film in order from the bottom. By doing so, the following effects will be achieved.
すなわち第１に、その表面の硬度と剛性が高い。Firstly, its surface has high hardness and rigidity.
つまり従来の金属製のものに比し摺動面の硬度と剛性が
高い。In other words, the sliding surface has higher hardness and rigidity than conventional metal ones.
第２に、耐摩耗性および耐腐蝕性にも優れている。つま
り従来の金属製のものに比し硬度と剛性が高いので、摺
動面が摩耗しにくく又摩擦熱による腐蝕も少ない等、そ
の材料劣化が防止され、耐久性に優れている。Secondly, it has excellent wear resistance and corrosion resistance. In other words, since it has higher hardness and rigidity than conventional metal ones, the sliding surface is less likely to wear and there is less corrosion due to frictional heat, preventing material deterioration and providing excellent durability.
第３に、研磨および補修も容易である。すなわち、摺動
面表面の研磨が容易でありこの点からも表面精度が高い
ものが得られ、又破損や摩耗時において、その補修のた
めの肉盛り溶射や研磨加工等が容易である。Third, it is also easy to polish and repair. That is, it is easy to polish the surface of the sliding surface, and from this point of view, it is possible to obtain a surface with high precision, and in the event of damage or wear, it is easy to perform overlay thermal spraying, polishing, etc. for repair.
第４に、スライダの移動も常時滑らかに維持される。す
なわち、例えば潤滑油を介在させる方式の場合、セラミ
ックスの溶射膜に存する多くの気孔が油溜りとなり、油
の補給回数が少なくても潤滑性が落ちない。又ベアリン
グを介在させる方式の場合もベアリングの損傷が少なく
、これらによりスライダの移動は常時滑らかに維持され
る。Fourth, the movement of the slider is always maintained smoothly. That is, for example, in the case of a method in which lubricating oil is used, many pores existing in the sprayed ceramic film become oil reservoirs, and the lubricity does not deteriorate even if the number of times oil is replenished is small. Also, in the case of a system in which bearings are used, there is little damage to the bearings, and as a result, the slider can always move smoothly.
このようにこの種従来例に存した問題点が一掃される等
、本発明の発揮する効果は顕著にして大なるものがある
。In this way, the problems that existed in this type of conventional example are completely eliminated, and the effects of the present invention are remarkable and great.
第１図は、本発明に係る軸受装置の実施例を示す、要部
の正断面図である。
第２図は、本発明に係る軸受装置の他の実施例を示す、
要部の正断面図である。
５・・・
６・・・
Ａ・・・
Ｂ・・・
Ｃ・・・
潤滑油
ベアリング
金属ボンドの溶射膜
硬質セラミックスの溶射膜
軟質セラミックスの溶射膜
１・・・
２・・・
３・・・
４・・・
スライダ
軸受は部
ガイドテーブル
ガイド軸FIG. 1 is a front sectional view of essential parts showing an embodiment of a bearing device according to the present invention. FIG. 2 shows another embodiment of the bearing device according to the present invention.
It is a front sectional view of the main part. 5... 6... A... B... C... Lubricating oil Bearing metal bond thermal spray coating Hard ceramic thermal spray coating Soft ceramic coating 1... 2... 3... 4... The slider bearing is part of the guide table guide shaft.
Claims (1)
ルの該軸受け部に対応する形状のガイド軸により摺動し
て案内され、もって該スライダが該ガイドテーブル上を
移動する軸受装置であって、該軸受け部と該ガイド軸の
うち少なくともいずれか一方の摺動面は、金属ボンドの
溶射膜、硬質セラミックスの溶射膜、軟質セラミックス
の溶射膜により、下から順に被覆されていること、を特
徴とする軸受装置。A bearing device in which a bearing part of a metal slider is slidably guided by a guide shaft having a shape corresponding to the bearing part of a metal guide table, and the slider moves on the guide table, The sliding surface of at least one of the bearing portion and the guide shaft is coated with a sprayed film of metal bond, a sprayed film of hard ceramics, and a sprayed film of soft ceramics in order from the bottom. bearing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18116989A JPH0348013A (en) | 1989-07-13 | 1989-07-13 | Bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18116989A JPH0348013A (en) | 1989-07-13 | 1989-07-13 | Bearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348013A true JPH0348013A (en) | 1991-03-01 |
Family
ID=16096094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18116989A Pending JPH0348013A (en) | 1989-07-13 | 1989-07-13 | Bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348013A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003105907A (en) * | 2001-09-27 | 2003-04-09 | Kokuyo Co Ltd | Structural member |
| US20110049834A1 (en) * | 2009-08-28 | 2011-03-03 | Saint-Gobain Performance Plastics Pampus Gmbh | Corrosion resistant bushing |
| US10203004B2 (en) | 2003-04-17 | 2019-02-12 | Saint-Gobain Performance Plastics Rencol Limited | Method of using a tolerance ring |
| US10371213B2 (en) | 2009-09-25 | 2019-08-06 | Saint-Gobain Performance Plastics Rencol Limited | System, method and apparatus for tolerance ring control of slip interface sliding forces |
| US11005334B2 (en) | 2017-12-15 | 2021-05-11 | Saint-Gobain Performance Plastics Rencol Limited | Annular member, method, and assembly for component displacement control |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62211390A (en) * | 1986-03-12 | 1987-09-17 | Hitachi Ltd | Ceramic coated heat resistant member and its production |
| JPS63212426A (en) * | 1988-01-28 | 1988-09-05 | Okuma Mach Works Ltd | Structure of slide guide surface of machine tool |
-
1989
- 1989-07-13 JP JP18116989A patent/JPH0348013A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62211390A (en) * | 1986-03-12 | 1987-09-17 | Hitachi Ltd | Ceramic coated heat resistant member and its production |
| JPS63212426A (en) * | 1988-01-28 | 1988-09-05 | Okuma Mach Works Ltd | Structure of slide guide surface of machine tool |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003105907A (en) * | 2001-09-27 | 2003-04-09 | Kokuyo Co Ltd | Structural member |
| US10203004B2 (en) | 2003-04-17 | 2019-02-12 | Saint-Gobain Performance Plastics Rencol Limited | Method of using a tolerance ring |
| US20110049834A1 (en) * | 2009-08-28 | 2011-03-03 | Saint-Gobain Performance Plastics Pampus Gmbh | Corrosion resistant bushing |
| US8944690B2 (en) * | 2009-08-28 | 2015-02-03 | Saint-Gobain Performance Plastics Pampus Gmbh | Corrosion resistant bushing |
| US10371213B2 (en) | 2009-09-25 | 2019-08-06 | Saint-Gobain Performance Plastics Rencol Limited | System, method and apparatus for tolerance ring control of slip interface sliding forces |
| US11005334B2 (en) | 2017-12-15 | 2021-05-11 | Saint-Gobain Performance Plastics Rencol Limited | Annular member, method, and assembly for component displacement control |
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