机械工程学报
機械工程學報
궤계공정학보
CHINESE JOURNAL OF MECHANICAL ENGINEERING
2010年
1期
30-36
,共7页
姜铭%易红%李鹭扬%倪中华%周建华
薑銘%易紅%李鷺颺%倪中華%週建華
강명%역홍%리로양%예중화%주건화
混联机构%并联机构%工作空间%转动%自由度
混聯機構%併聯機構%工作空間%轉動%自由度
혼련궤구%병련궤구%공작공간%전동%자유도
Hybrid serial-parallel mechanisms%Parallel mechanisms%Workspace%Rotation%Degree of freedom
新型并联双自由度转动关节(RGRR-Ⅰ)活动构件少、工作空间大,利用RGRR-Ⅰ构造混联6R机器人可以实现高刚度、大工作空间、机构紧凑等.提出混联机构的求解新方法,即建立少自由度并联机构的运动坐标参数与机构运动输入参数之间的关系,把混联机构的求解转化为各少自由度并联机构的求解和运动坐标参数之间的串联求解,降低了求解难度,可以方便地推导出位置的正解和反解.此方法对其他混联机器人的运动学分析有借鉴作用.
新型併聯雙自由度轉動關節(RGRR-Ⅰ)活動構件少、工作空間大,利用RGRR-Ⅰ構造混聯6R機器人可以實現高剛度、大工作空間、機構緊湊等.提齣混聯機構的求解新方法,即建立少自由度併聯機構的運動坐標參數與機構運動輸入參數之間的關繫,把混聯機構的求解轉化為各少自由度併聯機構的求解和運動坐標參數之間的串聯求解,降低瞭求解難度,可以方便地推導齣位置的正解和反解.此方法對其他混聯機器人的運動學分析有藉鑒作用.
신형병련쌍자유도전동관절(RGRR-Ⅰ)활동구건소、공작공간대,이용RGRR-Ⅰ구조혼련6R궤기인가이실현고강도、대공작공간、궤구긴주등.제출혼련궤구적구해신방법,즉건립소자유도병련궤구적운동좌표삼수여궤구운동수입삼수지간적관계,파혼련궤구적구해전화위각소자유도병련궤구적구해화운동좌표삼수지간적천련구해,강저료구해난도,가이방편지추도출위치적정해화반해.차방법대기타혼련궤기인적운동학분석유차감작용.
Since a new 2-DOF rotation parallel mechanism (RGRR-Ⅰ) has the advantages of less moving parts and large workspace, hybrid serial-parallel 6R robot is invented by using three RGRR-Ⅰ mechanisms in order to realize high stiffness as well as large workspace and compact structure. Replacing position analysis of hybrid serial-parallel mechanisms with position analysis of each less-freedom parallel machine and serial analysis of moving coordinate parameters by establishing the relation between moving coordinate parameters of less-freedom parallel machines and input parameters of machines, a new method of hybrid serial-parallel mechanisms position analysis is proposed in order to reduce the difficulty of position analysis and get result easily. It is very useful for kinematics analysis of other hybrid serial-parallel mechanisms.