Press

Content
2016-07-19

A clear edge through intelligent linear motion technology

Trends linear Motion

Dr. Steffen Haack, Member of the Executive Board with responsibility for the Business Unit Industrial Applications and Coordination Sales of Bosch Rexroth AG

When it comes to progress in linear motion technology, one thing is immediately clear: linear guides and systems move increasingly larger loads more regularly and with increasingly higher positioning accuracy and repeatability. Anyone with an understanding of the interplay between the drive technologies will know the potential resulting from it. Through a combination of electrics, sensors and software, linear motion technology makes a crucial contribution for integrated factory. Here are the five trends that support intelligent linear motion technology in practice:

Figure 1: Modularization and flexibility

Ready-to-install electromechanical cylinders combine mechanics with the flexibility of electric drives. A software command to the electric drive and the cylinder move them to any position and carry out complicated movement profiles. Without an additional position measuring system, they can achieve repeatability of up to ± 0.01 mm. Load measuring pins transmit the values analogously to the electric drive or the control and enable a decentralized processmanagement.

Figure 2: Functional integration reduces complexity

If the precision requirements are high but the environment conditions are rough, conventional measuring systems soon reach their limits. Absolute measuring systems integrated into ball rail and roller rail systems detect the absolute position of the axis with a resolution of 0.025 μm. They immediately recognize the absolute position of the axis when the machine is switched on and report it to the controller without carrying out a reference run. In addition, modern systems do not require buffer batteries that need to be replaced regularly.

Figure 3: Predictive maintenance increases availability

Sensors measure temperature peaks and vibrations. This data forms the basis for future approaches to predictive maintenance. However, it is only significant if it is compared with life cycle models. In load tests, the newly developed runner blockshave demonstrated twice the service life through increased load capacities with the same size. Together with the detected operating conditions and predictive maintenance, they significantly increase the availability of machines and systems.

Figure 4: Digitally supported commissioning

Previously, an experienced technician could easily have spent twenty minutes commissioning a linear axis. With the new mechatronic linear axes and actuators, the commissioning takes only three to five minutes. A digital assistant supports the application engineer with this. The technician only has to enter a few pieces of axis-specific data and can then immediately program or parameterize the drive. In the future, this functionality will automatically be available via the QR code.

Figure 5: Digital engineering for secure and quick dimensioning

More and more engineering departments are changing to integrated digital workflows. With selection guides or sizing tools, design engineers find the correct linear motion technology components and mechatronic systems through intuitive user guidance, which can even be application-specifically configured. The electronically generated data are then integrated directly into the digital construction model and enables the virtual simulation of complex machine movements, for example.

Photos: Bosch Rexroth AG

 

Search press releases


Contact

Susanne Herzlieb
Maria-Theresien-Straße 23
97816 Lohr am Main
Phone: +49 9352 18-1573
susanne.herzlieb@boschrexroth.de




Related Articles

2017-09-08
Statement

The factory of the future creates added value through flexibility and agility

In future production environments demands on adaptability will rise. This development can only be realized by separating hardware and software in automation. Bosch Rexroth AG promotes this development primarily with a broad product spectrum from sensors to drive and control technology to software solutions.


2016-08-11
Press Information

The five most expensive savings ideas for the maintenance of machinery and equipment

Machine downtime is always expensive, especially if a whole production line comes to a standstill as a result. For new machinery, the machine manufacturer is still liable, but afterwards the responsibility for maintenance lies solely with the user. Maintenance staff must constantly justify their "unproductive" costs and, hence, try to reduce them. However, some short-term saving ideas lead to nothing but higher total costs in the end. The following are the five most expensive, and unfortunately, not uncommon errors when it comes to machine maintenance.