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A Novel Parallel-Kinematics Machine Tool
In the paper a novel parallel-kinematics machine (PKM) tool is introduced, consisting of two innovative components. The first is a manipulator capable of producing a special class of motions, namely, those produced with manipulators termed SCARA, an acronym Selective-Compliance Assembly Robot Arm.
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Workspace Analysis of a 5-Axis Parallel Kinematic Machine Tool
This paper presents a type of 5-DOF parallel kinematic machine tool architecture on which the parallel manipulator with 3-DOF sliding on the frame structure of machine tool is responsible for the translation along X-direction and Y-direction. Workspace analysis of this mechanism is proposed so as to know the reach of the tool for complex ...
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Parallel Robotic Machine Tools
This book focuses on the junction of parallel robot and machine tools. A suc-cessful application of parallel mechanisms in the field of machine tools, which is also called parallel kinematic machines tools, has been the developing trend of advanced machine tools. This book results from the author's research in the field of parallel robotic ma-
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Parallel Kinematics for Machine Tools | SpringerLink
Parallel kinematics is a branch of mechanics that focusses on manipulators formed by closed kinematic chains, i.e., mechanisms that have an endeffector joined to the fixed frame by …
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Modelling and analysis of machine tool with parallel–serial kinematics
Machine tools with a parallel–serial (hybrid) kinematics structures represent a compromise solution that combines the advantages of traditional serial and parallel kinematic in the building of machine tools. By selecting a planar parallel mechanism with optimally designed components, the supporting structure of the machine tool is obtained with improved kinematic …
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parallel kinematics machine tools: overview- from history to
and 4 Degrees of Freedom for 5‐Axis Parallel Kinematics Machine Tool, The 4 Chemnitz Parallel Kinematics Seminar PKS2004, Chemnitz, Germany, April 20‐21, 2004, pp.487‐502 [40.]
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Parallel Kinematic Machine Tools – Current State and
Parallel kinematics have recently attracted attention as machine tools because of their conceptual potentials in high motion dynamics and accuracy combined with high structural rigidity due to ...
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Parallel Kinematic Machines
Parallel Kinematic Machines (PKMs) are one of the most radical innovations in production equipment. They attempt to combine the dexterity of robots with the accuracy of machine tools to respond to several industrial needs. This book contains the proceedings of the first European-American Forum on Parallel Kinematic Machines, held in Milan, Italy from 31 …
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Machining with the WalkingHex: A walking parallel kinematic machine
The use of these complex miniature machine tools has shown that they are really capable to provide the expected performance [5]. Compared to serial kinematics, the parallel kinematic architecture boosts the performance of portable machines since it enables very favorable stiffness to mass ratios [6].
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A systematic optimization approach for the calibration of parallel
Parallel kinematics machine (PKM) has attracted attention as machine tools because of its high structural stiffness, high dynamics performance and high load-weight ratios. Many similar parallel kinematic machines have been designed and …
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Parallel-Kinematics Machine
Starting from the kinematic structure of parallel machine tools, we have outlined the main modeling techniques and how they can be used to analyze and then optimize the performance …
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Reconfigurable Parallel Kinematic Machine Tools
Where M denotes the mobility or the system DOF, d is the order of the system (d = 3 for planar motion and d = 6 for spatial motion), n is the number of the links including the frames, g is the number of joints, and f i is the number of DOFs for the ith joint.. In order to ensure the required motions (i.e., 5-dof between the machine tool and the workpiece), the DOFs …
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Position-dependent dynamics and stability of serial-parallel kinematic
To deliver improved dynamic performance over the whole working range of the machine, a prototype hierarchical hybrid serial-parallel scissor kinematic machine has been developed at the Fraunhofer IWU [2], see Fig. 1.Motion is split between the serial parts that envelope large work volumes and the scissor kinematic arrangement that allows delivery of …
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A review of parallel kinematic machine tools: Design, modeling, …
DOI: 10.1016/j.ijmachtools.2024.104118 Corpus ID: 266858779; A review of parallel kinematic machine tools: Design, modeling, and applications @article{Russo2024ARO, title={A review of parallel kinematic machine tools: Design, modeling, and applications}, author={Matteo Russo and Dan Zhang and Xin-Jun Liu and Zenghui Xie}, journal={International Journal of …
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PARALLEL KINEMATICS MACHINE TOOLS: OVERVIEW‐ …
patents related to parallel kinematic machines have been applied. Today, parallel kinematic machine tools, slowly but surely, entering the commercial market and are already established in niche applications [14, 13, 20]. CLASSIFICATION OF PARALLEL KINEMATICS MACHINES
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Parallel Kinematic Machine Tools – Current State and Future …
Parallel mechanisms, well established as handling and positioning devices, have recently attracted attention as machine tools because of their conceptual potentials in high motion …
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Parallel Kinematic Machine Research at NIST: Past, Present, …
As a result, prototypes of a new class of machine tools based on parallel kinematic structures, known as parallel kinematic machines (PKMs), have been introduced. The six degree-of-freedom Stewart platform [1] is one PKM configuration that has been used recently in a number of new machine tool designs. A Stewart platform machine tool typically
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Simulation of parallel kinematic machine tools with minimal …
better dynamic behavior of the machine tool. The disadvantage of parallel kinematic machines con-sists in their highly nonlinear behavior. As a result, the kinematic and dynamic properties of the machine tools can hardly be determined by estimations and rough calculations but have to be calculated by simulation tools.
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Parallel Kinematic Machine Tools – Current State and Future …
Parallel kinematics have recently attracted attention as machine tools because of their conceptual potentials in high motion dynamics and accuracy combined with high …
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Kinematic Performance Comparison of Two Parallel Kinematics Machines
Kinematics characteristic is the representation of the working performance of parallel kinematics machine (PKM). Two kinds of parallel kinematics machines, Trimule and Tricept, are studied for comparative kinematics analysis in this paper. Firstly, global coordinate...
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Stiffness Computation and Identification of Parallel Kinematic Machine
This paper deals with the stiffness computation and model identification of parallel kinematic machine tools (PKMs). Due to their high dynamic abilities, PKMs are subjected to high inertial and cutting loads while machining. These loads generate structure deflection, and it results in a low level of accuracy compared with serial machines. The aim of this paper is to present a …
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Simulation techniques for the design of parallel kinematic …
Parallel kinematic machine tools (PKMs) offer advantages such as higher precision, stiffness, and dynamics compared to their serial kinematic counterparts. However, the design and …
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A review of parallel kinematic machine tools: Design, modeling, …
This study aims to calibrate the posture of a robot-type machine tool comprising parallel and serial links using a kinematics error model and verify the machining performance …
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Parallel Kinematic Machine Tools – Current State and Future …
Parallel Kinematic Machine Tools – Current State and Future Potentials M. Weck (1), D. Staimer Laboratory for Machine Tools and Production Engineering, Chair for Machine Tools Aachen University of Technology, Aachen, Germany Abstract Parallel kinematics have recently attracted attention as machine tools because of their conceptual
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Influence of Tool Posture and Position on Stability in Milling with
This paper investigated the machining stability influenced by tool posture and position in ball-end milling with parallel kinematic machine tool (PKM). Initially, the geometric structure was identified, and the machinery stiffness was measured by impulse respond method at several positions with four tool postures. Then, the milling tests were conducted on flat work …
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Certified kinematic tools for the design and control of parallel …
Parallel robots [1], [2], [3] are closed-loop kinematic manipulators usually with two platforms (a base and an upper platform as the end-effector) that are linked by several kinematic chains. Each kinematic chain has joints that are either actuated (active joints generating the motions) or not (passive joints). The consecutive joints are linked by a body.
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Calibration of parallel kinematic machine tools using mobility
In the application of parallel kinematic machine tools (PKM), because of errors in the geometric parameters, it is necessary to calibrate the PKM to improve the positioning accuracy. In existing self-calibration methods, either some redundant sensors on passive joints or some mobility constraints on the kinematic chains are used. However, the mobility constraints …
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[PDF] Parallel Kinematic Machine Tools
This paper presents the kinematics for 3-PTT parallel machine tools, the kinematic is analytically performed, the forward and inverse position kinematic equations are explicit functions and workspace … Expand
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A review of parallel kinematic machine tools: Design, modeling, …
Hybrid serial-parallel kinematic machine tool (HSPKMT) has been regarded as a promising solution for 5-axis machining in many industrial fields. A typical HSPKMT can be constructed by integrating ...
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Parallel Robotic Machine Tools | SpringerLink
Covers the latest material in parallel kinematic machine tools and the junction of parallel robot and machine tools; Includes novel conceptions and approaches such as the general kinetostatic model, artificial intelligence based performance optimization, and the global stiffness model;
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