Error Analysis of a Serial–Parallel Type Machine Tool

Zhoa, J.-W.; Fan, Kuang‐Chao; Chang, Tsan-Hwei; Li, Z.

doi:10.1007/s001700200011

Cited by 18 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the basis of the basic modelling method, many scholars established PKM error models considering connection errors, guide errors, and clearance errors. For lower mobility parallel mechanisms such as the 3-PRS, Zhao et al 21 built an error model considering manufacturing and assembling tolerance errors of prismatic pairs (P). Wang et al 22,23 established an error model including hinge joint errors of a revolute joint (R), a spherical joint (S), and zero errors of a prismatic pair, but ignored the straightness errors of the guide rail and orientation errors of the revolute joint.…”

Section: Introductionmentioning

confidence: 99%

A manufacturing-oriented error modelling method for a hybrid machine tool based on the 3-PRS parallel spindle head

Song

Zhiwen

et al. 2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Five-axis hybrid machine tools are widely used due to the advantages of high speed, high precision, and good performance in the aviation and aerospace manufacturing industry. Many scholars have studied the basic theories and key technologies along with the widespread attention of academia and industry thereon. An integrated geometric error modelling method, under the unified coordinate system framework for a general five-axis hybrid machine tool based on a 3-PRS parallel spindle head, is proposed. The kinematic inverse model of a hybrid machine tool is built using a vector chain method. On the basis of the analysis of the various error sources, an integrated geometric error model is developed based on perturbation theory. Then, the influence of each error source of a hybrid machine tool is investigated at the end-effector. Screw theory is applied to research error source separation for the 3-PRS parallel spindle head of a hybrid machine tool, and a sensitivity analysis of the error sources is undertaken using statistical methods. Based on this, the compensable error sources and non-compensable error sources of a hybrid machine tool are separated successfully. The non-compensable error sources must be strictly controlled in the process of design and manufacture, while the compensable error sources can be compensated inexpensively by software after reaching some degree of accuracy in the design and manufacture. This research provides a theoretical reference for this kind of machine tool design and its use in manufacturing.

show abstract

Section: Introductionmentioning

confidence: 99%

A manufacturing-oriented error modelling method for a hybrid machine tool based on the 3-PRS parallel spindle head

Song

Zhiwen

et al. 2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…[9][10][11][12][13] However, accuracy synthesis is a process closely related with current processing capability in practical production. Multiple obscure and fluctuant factors dynamically affects the whole manufacturing process in an enterprise, and the optimized solution made by referring local manufacturing condition may possibly lack robustness in the following application, thus, a set of solutions with global sense should be developed so as to tolerate possible failures due to process instability.…”

Section: Introductionmentioning

confidence: 99%

A new accuracy design for a 6-dof docking mechanism

Ding

Yao

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The accuracy design is an effective approach in accuracy improvement for 6-dof docking mechanism, which involves accuracy analysis and synthesis. To improve the efficiency for accuracy analysis, the number-theoretic method (NTM)-based simulation with Sobol point set is investigated. Compared with traditional Monte Carlo (MC) simulation, Sobol set-based NTM can attain the same precision with only 1/10 sampling size of MC simulation. The accuracy synthesis process considers process ability and adopts orthogonal and uniform design of experiments with Sobol set-based NTM for simulation for efficiency to generate multiple solutions adapted to fluctuation of manufacturing environment, In contrast with another synthesis approach, the costs of some solutions are lowered, and the structure tolerances can be relaxed to 18.66% and 19.28% without accuracy loss.

show abstract

“…This is due to multiple error sources such as kinematic errors due to manufacturing tolerances, permanent deformation or wear, errors due to internal and external temperature variations [4,5], reaction to cutting forces and errors due to the mass of the structure and any payload [6]. The measurement of errors associated with HPKMs has been described by a number of authors [7][8][9][10]. To further improve the performance of HPKMs without incurring a high level of additional cost, practical and robust methods to compensate for the most significant errors are required.…”

Section: Introductionmentioning

confidence: 99%