配送先を選択して下さい

国/地域ページの選択は、価格、配送オプション、製品在庫など様々な要素に影響します。
連絡先
イグス株式会社

〒130-0013 東京都墨田区錦糸1-2-1

アルカセントラル15階

03(5819)2030
03(5819)2055
JP(JA)

Plastic instead of recirculating balls - Linear guides for mechanical deburring
 

Profile

  • What was needed: Plastic plain bearings
  • Requirements: Strong mechanical load, strong vibrations, much dust
  • Industry: Mechanical engineering
  • Success for the customer: A low-wear product with good sliding properties

 
Machine deburring of metal parts places high demands on the drives and above all on the guide elements of the milling motors. High rigidity is required and the guides must be designed for high feed rates. Purely theoretically, these are ideal operating conditions for recirculating ball bearing guides - if it weren't for the high dirt and dust loads. A machine manufacturer therefore decided to use plastic plain bearings, with success.
 
Automatic edge milling machine for intercoolers Automatic edge milling machine for intercoolers.

Problem

The two main axes for the milling process are equipped with recirculating ball linear guides. This also seems to be the right choice for the high speeds. However, things look different with the vertical guides for the two milling motors and the sawing unit, which also perform the feed stroke of around 25 mm. These guides are heavily stressed because they have to absorb the forces occurring during milling and counteract them accordingly. In addition, the fast running motors generate extreme vibrations. Finally, at this point, in the immediate vicinity of the machining process, there is a high level of contamination from aluminium swarf and dust.

Solution

All these factors speak rather against recirculating ball bearing guides. Therefore the designers at the engineering office looked for an alternative solution. They decided on the drylin® T plastic plain bearings from igus®. In this bearing, a carriage with sliding elements made of the abrasion-resistant high-performance polymer "iglidur® J" travels in a guide profile made of hard anodised aluminium. This is a perfect glide surface, as it is approximately three times more resistant to abrasion than steel mating surfaces.
 
Good sliding properties
Due to the very good sliding properties, the system also has a quiet operation. It is also insensitive to corrosion and dirt. The so-called "dry operation" is decisive for these specifications. As the drylin® T plain bearings do not require lubrication, the sliding elements act like wipers and simply push chips and dust off the glide bar. That such good sliding properties are nevertheless achieved is due to the high-performance polymer iglidur® J. In this highly abrasion-resistant material developed by igus®, the lubricants are permanently "incorporated". The linear guide drylin® T is successfully used today, especially in dirty environments. In woodworking machinery, for example, in paper and textile processing and in packaging machines. Even in environments where water, alkalis, or acids are added to most ball guide systems, the linear guide will last.
 
No signs of wear and tear
This cannot be taken for granted, because the machine is subject to hard wear and tear. Each year, the guide units have to complete around 300,000 strokes - under vibrations, heavy mechanical loads and in an environment contaminated by aluminium swarf and dust. A little wear would be quite understandable, but nevertheless the drylin® guides still run without bearing clearance after three years and now 900,000 strokes.
 
 



以下の用語 "Apiro", "AutoChain", "CFRIP", "chainflex", "chainge", "chains for cranes", "ConProtect", "cradle-chain", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "dryway", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-loop", "energy chain", "energy chain systems", "enjoyneering", "e-skin", "e-spool", "fixflex", "flizz", "i.Cee", "ibow", "igear", "iglidur", "igubal", "igumid", "igus", "igus improves what moves", "igus:bike", "igusGO", "igutex", "iguverse", "iguversum", "kineKIT", "kopla", "manus", "motion plastics", "motion polymers", "motionary", "plastics for longer life", "print2mold", "Rawbot", "RBTX", "readycable", "readychain", "ReBeL", "ReCyycle", "reguse", "robolink", "Rohbot", "savfe", "speedigus", "superwise", "take the dryway", "tribofilament", "triflex", "twisterchain", "when it moves, igus improves", "xirodur", "xiros" and "yes" は、イグスの商標でありドイツ連邦共和国及び他国において、法的に保護されています。しかしながら、ここにあげた商標はあくまで例示列挙したものであって、イグス、およびドイツ、ヨーロッパ連合、アメリカ合衆国、その他の国で事業を展開するイグスの子会社が有する商標を包括的に列挙したものではありません(例えば、出願中の商標や登録商標など)。

igus GmbHは、Allen Bradley、B&R、Baumüller、Beckhoff、Lahr、Control Techniques、Danaher Motion、ELAU、FAGOR、FANUC、Festo、Heidenhain、Jetter、Lenze、LinMot、LTi DRiVES、Mitsubishi、NUM、Parker、Bosch Rexroth、SEW、Siemens、Stöber各社、およびこのウェブサイト内で言及される他のすべてのモータケーブルメーカーのいかなる製品も販売していません。The products offered by igus® are those of igus® GmbH