Robots in various types carry and assemble parts through repeatedly and accurately moving to stored locations by combining linear motions. And, linear systems are used in orthogonal axes of robots and driven via ball screws, such as 2-axis cartesian coordinate robot in this paper. This paper presents the effect of the linear motion guide that is used in 2nd axis in 2-axis cartesian coordinate robot. Some simulation results show that the linear motion guide influence greatly in robot performance such as the nominal life of linear guide. When use LM guide that have capacity near in 2nd axis, this paper show that the nominal life on LM block of 1st axis increases 37.4% and that the specification of 2nd axis LM guide influences greatly the nominal life of 1st axis LM block.

Abstract
 1. 서론
 2. 설계 및 부하하중계산식
  2.1. 설계
  2.2. 부하하중 및 수명 계산식
 3. 하중 및 수명 시뮬레이션
  3.1 2축 LM 가이드
  3.2 1축 LM 가이드
  3.3 처짐량
  3.4 결과 분석
 4. 결론
 참고문헌

• 이종신(주성대학 컴퓨터응용기계과) | Jong Shin, Lee