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Wear-resistant 3D cable guidance in stretch-bending machine in the tightest of spaces

Flexible energy tubes in machine tools ensure low-friction media guidance

This horizontal CNC inclined-bed lathe from machine manufacturer Schiess Tech GmbH is used in metalworking and is equipped with a main and counter spindle as well as two turrets. A special feature is the consistent common-parts strategy for all structural components, both within the machine and across all sizes and types. The system is easy to install and maintenance-optimised. The cable management in a very small space was realised with a three-dimensional media guidance system with a rotational movement component. 3D energy tubes from igus and the highly wear-resistant tribo-tape liner made of iglidur ensure the best results.

Profile

  • What was needed: energy tubes and tribo-tape liner from igus
  • Requirements: tight installation space, cable guidance must allow three-dimensional movement with rotational movement component
  • Industries: machine tool construction, metalworking
  • Success for the customer: energy tubes from igus flexibly follow the movements in the system; the tribo-tape liner reduces friction between the box and energy tube to a minimum and increases the service life.
Other products for machine tools
Lathe The horizontal CNC slant bed lathe has a main spindle, counter spindle and two turrets.

Problem

The system is a newly developed horizontal CNC inclined-bed lathe, which has a main spindle, a counter spindle and two turrets. In metalworking, it is primarily used for machining small and medium-sized turned parts in medium and high quantities. A special feature of the system is the consistent common-parts strategy for all structural components, both within the machine and across all sizes and types. The machine is also designed to be particularly easy to install and maintain so as to minimise planned and unplanned downtimes.
In a defined space, various media and cables have to be guided from a support on the machine bed to a tool turret. A special feature is that this is a three-dimensional media guidance system with a rotational movement component. The available space is so small that the media must be force-guided to avoid collisions with other components. Furthermore, an additional cable guidance system is intended to ensure the direct supply of a tool turret that requires a particularly large amount of media.

Solution

Schiess Tech GmbH decided to use 3D energy tubes from igus as a solution for the special requirements profile of the system. These appeared to be suitable for allowing gravity-loaded two-dimensional movement on the inclined-bed plane.
Due to the limited installation space, forced guidance of the energy tubes was necessary. This now takes place via a guide box with several inlet geometries, which is only slightly wider than the energy tube itself. However, the narrow design of the box led to increased abrasion and wear between the energy tube and guide box during movement. A stick-slip effect, i.e. jerking between the two bodies, which is also associated with increased wear, could not be ruled out either.
The project planners therefore decided to use the igus liner tribo-tape to line the inside of the box. It reduces friction to a minimum and prevents the stick-slip effect, resulting in a longer service life.
Covered guide box Due to the small installation space, forced guidance of the energy tubes was necessary (coloured blue here).
Uncovered guide box The guide box with several inlet geometries is only slightly wider than the energy tube itself. It is lined with tribo-tape, which minimises friction.


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igus® GmbH points out that it does not sell any products of the companies 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 and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH