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Minutes instead of days: Complete solution reduces assembly times of machining centres


Thanks to ready-to-install readychain systems from igus, process costs can be lowered and errors reduced

In its robotic machining centres, Taiwanese tool manufacturer Hartford uses fully harnessed energy chain systems from igus. This cuts out many process steps for the manufacturer, reducing assembly time from several weeks to just half a day. At the same time, customers can always depend on receiving a safe and reliable solution from a single source when they order readychains from igus.

Profile

  • What was needed: readychain harnessed energy chain
  • Requirements: Long travels, high dynamics, oil resistance, fast assembly
  • Industry: Machine tool manufacturing
  • Success for the customer: Ready-to-install readychain systems can reduce assembly time, process costs and errors

Problem

In hardly any other industry are throughput times as important as in the machine tool industry. Cutting out individual work steps means that considerable savings in process costs can be achieved. The design engineers at Hartford, the largest manufacturer of CNC machining centres in Taiwan, are well aware of this. Since 2017, the company has been developing CNC equipment of the AERO series – the largest robotic machining centres for very large components needed for the aerospace industry, for example. In this industry, precision and reliability are critical factors. For Hartford, therefore, it was especially important to have a reliable means of energy supply from the control cabinet to the moving parts, which include lead screws and motors. At the same time, all the information regarding axis position and dynamics must be passed back to the control system without any interruption. In the first model in this series, the AERO626, this happens at accelerations of up to 0.5g and a maximum travel speed of up to 60m/min.

Solution

This is why Hartford's engineers turned to igus.  igus presented Hartford with a readychain solution for its AERO series systems, i.e. a pre-assembled complete solution consisting of energy chains and chainflex cables. The igus energy chains enabled the Hartford engineers to significantly reduce the installation space. One reason for this is that all chainflex cables on the machine have an oil-resistant PUR outer jacket. As additional protective hoses are superfluous because of this feature, the amount of space needed for the cables and therefore the size of the chains are reduced. The absence of these protective hoses reduces cost and helps ease maintenance too.
In a close collaboration between igus Taiwan and Hartford, a 3D drawing of the used readychain with assembly frame was created in order to simulate the assembly procedure before the installation of the system. The benefit could be seen immediately: The first energy chain fitted with all electrical cables was installed on the machine in an hour. The second chain with hydraulic hoses was installed even faster, taking just 40 minutes.

energy chain chainflex cables guided in the chains also come from igus. They are developed specifically for use in moving energy chains and can withstand millions of cycles.
readychain assembly The readychains are installed in less than half a day instead of taking several weeks.

Work steps cut out for significantly greater productivity

Normally, machine tool manufacturers try to avoid situations where too many different work steps have to be carried out on a system at the same time. A lot of manual work done by different employees does not automatically enhance efficiency; on the contrary, it increases the probability that errors can occur. By using igus readychains, all four e-chains from igus can be fully installed in half a day. Previously, two employees took one and half weeks for the work on the X-axis of an AERO system and a further week for the energy supply of the Y and Z-axes. In this way, Hartford is able to cut out some work steps, reduce process cost and, at the same time, greatly improve productivity. While rely on the tried-and-tested quality of the readychains from igus.
energy chain igus energy chains, including cables and mounting frame, are delivered to Hartford as fully-assembled readychains.

motion - magazine for energy chain systems®

Improve the performance of your machine ... Cost down.

In this igus® magazine you will find numerous possibilities and application examples of how you can bring your tech up and/or cost down with ready-to-install energy chain systems.
Order your personal copy here

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