Skip to main content
Log in

Flexible forming with hexapods

  • Machine Tool
  • Published:
Production Engineering Aims and scope Submit manuscript

Abstract

The work presented in this paper provides the basis for an extension of conventional orbital forming to a new, flexible forming process. A hydraulically actuated hexapod is used to move a swage in order to extrude a work piece towards a desired shape. This paper presents an analytical model of the actuators and the dynamics of the hexapod. This model is used for developing a cascaded position control law, and for developing a simulation environment representing the machine and the work piece in an entire forming process loop. The design of the machine is briefly introduced and results of position control are presented.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. Schmoeckel D (1991) Developments in Automation, Flexibilization and Control of Forming Machinery. In: Annals of the CIRP 40, Nr. 2, pp 615–622

  2. Macniak Z (1980) The influence of the type of motion of the tools on the cold or warm metal forming process. In: Proceedings of the 4th international conference on production engineering

  3. Sirouspour MR, Salcudean SE (2001) Nonlinear control of hydraulic robots. In: IEEE Trans. on Robotics and Automation, pp 173–182

  4. Sirouspour MR, Salcudean SE (2000) On the nonlinear control of hydraulic servo-systems. In: Proceedings of the IEEE international conference on robotics and automation

  5. Sciavicco L, Siciliano B (1996) Modelling and control of robot manipulators. McGraw-Hill, London

    Google Scholar 

  6. Kühn JB (2004) Auslegung, modellierung und regelung einer servohydraulischen Stewart-Gough-Plattform, Fortschritt-Berichte VDI, Reihe 8, Nr. 1042

  7. Becker OT (2003) Kraftregelungsverfahren für hydraulisch angetriebene nichtkartesische Fertigungsmaschinen. Dissertation, TU Braunschweig

    Google Scholar 

  8. Sohl GA, Bobrow JE (1999) Experiments and simulations on the nonlinear control of a hydraulic servosystem. IEEE Trans Control Syst Technol 7(2):238–247

    Google Scholar 

  9. de Witt CC, Olsson CH, Åström KJ, Lischinsky P (1995) A new model for control systems with friction. IEEE Trans Autom Control 40(3):419–425

    Google Scholar 

  10. Mihajlov M, Nikolić V, Antić D (2002) Position control of an electro-hydraulic servo-system using sliding mode control enhanced by Fuzzy PI Controller. Facta Universitatis. Mech Eng 1(9):1217–1230

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Sven Rathmann.

Additional information

This work was part of the Priority Program (SPP) 1099, supported by the German Research Foundation (DFG).

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hesselbach, J., Behrens, BA., Dietrich, F. et al. Flexible forming with hexapods. Prod. Eng. Res. Devel. 1, 429–436 (2007). https://doi.org/10.1007/s11740-007-0063-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11740-007-0063-3

Keywords

Navigation