Systematic Design of Hexapods and other Parallel Link Systems

Pritschow, h.c. Günter; Wurst, Karl-Heinz

doi:10.1016/s0007-8506(07)60828-2

Cited by 96 publications

(26 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A design methodology using connectivity which is defined as the degrees of freedom (dof) associated with the joints of the limb in parallel manipulators was introduced in [7]. From an engineering point of view, a systematic design process for parallel manipulators using 3-dof arm elements is described in [8]. By constraining the joint type, infeasible design candidates can be removed at conceptual design.…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

A hybrid 5-axis CNC milling machine

Son

Kim

Sarma

et al. 2009

Precision Engineering

View full text Add to dashboard Cite

Section: Literature Reviewmentioning

confidence: 99%

“…(8) implies that the required actuator velocity becomes infinite to achieve a finite speed of the end-effector unless a special condition, adj(J)Ẋ = 0, is met.…”

Section: Kinematic Singularities In Serial Machinesmentioning

confidence: 99%

A hybrid 5-axis CNC milling machine

Son

Kim

Sarma

et al. 2009

Precision Engineering

View full text Add to dashboard Cite

“…Pure parallel kinematics, like Hexapod or Tripod structures have been supplemented with hybrid kinematics, the combination of parallel and serial kinematics. Despite a great number of machines and prototypes being introduced on machine tool shows, the principal design methodology is still a research topic regarding workspace, stiffness or maximum load [114,115,116]. The coupled structure of PKMs and hybrid kinematics, non-linear system behavior and the need for highest positioning accuracies require adapted control systems and strategies.…”

Section: Parallel and Hybrid Kinematic Machinesmentioning

confidence: 99%

Advancing Cutting Technology

Byrne

Dornfeld

Denkena³

2003

CIRP Annals

581

199

View full text Add to dashboard Cite

This paper reviews some of the main developments in cutting technology since the foundation of CIRP over fifty years ago. Material removal processes can take place at considerably higher performance levels in the range up to Q w = 150 -1500 cm 3 /min for most workpiece materials at cutting speeds up to some 8.000 m/min. Dry or near dry cutting is finding widespread application. The superhard cutting tool materials embody hardness levels in the range 3000 -9000 HV with toughness levels exceeding 1000 MPa. Coated tool materials offer the opportunity to fine tune the cutting tool to the material being machined. Machining accuracies down to 10 µm can now be achieved for conventional cutting processes with CNC machine tools, whilst ultraprecision cutting can operate in the range < 0.1µm. The main technological developments associated with the cutting tool and tool materials, the workpiece materials, the machine tool, the process conditions and the manufacturing environment which have led to this advancement are given detailed consideration in this paper. The basis for a roadmap of future development of cutting technology is provided.

show abstract

“…Also many new PKM prototypes have been patented and some of them manufactured and tested by the industry and research institutes. The search for a machine tool structure with superior performance in the key areas of accuracy, dynamics and price in comparison with conventional design is clearly underway [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%