Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Sliding Ball Joint of Parallel Kinematic Mechanism

병렬 운동 기구의 미끄럼 볼 조인트 개발에 관한 연구

  • 유대원 (한국산업기술대학교 지식기반기술.에너지대학원 기계시스템설계공학과) ;
  • 이재학 (한국산업기술대학교 기계설계공학과)
  • Published : 2009.09.01
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Abstract

Parallel Kinematic Mechanism (PKM) is a device to perform the various motion in three-dimensional space and it calls for six degree of freedom. For example, Parallel Kinematic Mechanism is applied to machine tools, medical equipments, MEMS, virtual reality devices and flight motion simulators. Recently, many companies have tried to develop new Parallel Kinematic Mechanism in order to improve the cycle time and the precisional tolerance. Parallel Kinematic Mechanism uses general universal joint and spherical joint, but such joints have accumulated tolerance problems. Therefore, it causes position control problem and dramatically life time reduction. This paper focused on the rolling element to improve sliding precision in new sliding ball joint development. Before the final design and production, it was confirmed that new sliding ball joint held a higher load and a good geometrical structure. FEM analysis showed a favorable agreement with tensile and compressive testing results by universal testing machine. In conclusions, a new sliding ball joint has been developed to solve a problem of accumulated tolerance and verified using tensile and compressive testing as well as FEM analysis.

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References

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Cited by

  1. Caulking and Gap Analysis for a Ball Joint vol.35, pp.9, 2011, https://doi.org/10.3795/KSME-A.2011.35.9.1077