Cdng trinh Khoa hpc T I VXJ K I C H T H i r d C C U A M O T SO C H I T I E T TREN ROBOT KIEM TRA MOI HAN BANG CONG NGHE CAD - CAE BUI VAN HlTNG Khoa Cakhi Tru&ng Dgi hgc Giao thong Vgn tdi Tom tat: Bdi bdo ndy trinh bdy mdt phuang phdp de tdi iru hda kich thu&c ihiel ke cua mpt sd chi Hit trin ROBOT kiem tra mot hdn tu dpng dua tren phuang phdp phdn luhitu hgn Tren ca sd cdc kich thudc thiet ke cua mpl so chi tiet da cd sdn vd tinh trgng ldm viec cua ROBOT Bdi bdo img dung md dun phdn tich ung sudl de ldi uu hoa kich ihu&c thiet ke dugc tich hgp tren cdc phdn mem CAD - CAE hien Kit qud nghien cuu dua phuang phdp linh todn thiet ki mdi gidm thiiu ih&i gian tinh todn vd mang lgi hieu qud cUng nhu dp chinh xdc cao Summary: The article depicts a method to optimize the design dimensions of some elements of automatic welding inspection robot using the finite element method Based on the size of several elements available and the working state of the robot, the Stress Module has been applied lo optimize the dimensions present The results proposes a new designing Analysis already integrated in CAD - CAM at approach to reduce calculating time and achieve higher efficiency and more accuracy as well I D A T V A N D E Trong ITnh vuc thiit ki may hien van dang tdn tai cac phuong phap thiet ki khac nhau, cac phuong phap da dugc nghien ciiu, iing dung va phat trien tir nhieu nam trudc Cac phuang phap thiit ke chi liit may nhin chung phai trai qua cac budc co bin nhu sau Irong qua Irinh tinh loan thiet ke: lap so dd linh loan dd kit cau dugc don gian hda, cac luc l^p trung hoac phan bd theo mdt quy luat nao dd; xac dinh luc tac dung len chi tiet may; chgn v|it lieu thich hgp vdi dieu kien lam viec cua may - kha nang gia cdng va xet den tinh kinh te; tinh loan kich thudc theo chi tieu ve kha nang lam viec Tuy nhien qua tiiidi tinh toan n^y don gian va ddi hdi sii dung kien thiic ca sd nen tang rit nhiiu song nd chi dimg lai d viec tinh loan sa bd vdi sa dugc dan gian hda, cac nhan td tai tigng va iing suat chua dugc danh gia chinh xac De thiet kS tdi uu dugc chi liit yeu cku qua trinh che tao va hieu chinh thiet ke thdng qua danh gia kiem nghiem 166 Tap chi KHOA HOC GIAO THONG VAN TAI So dac bift - 1 / Cdng trinh Khoa hpc Vdi yeu cliu chinh xac va tdi uu thiit ki de dem lai hieu qua kinh te cao ddi hdi can phai ap dung nhiing phuang phap thiit ki mdi da dugc ung dung phd biin tiong ITnh vuc thiit ke ke CO tren the gidi Dac biet, vdi su phat ttien cdng nghe CAD/CAE cac budc thiet ke theo phuang phap truyen thdng hoan toan cd the dugc md hinh hda, phan tich va tdi im thiet ke tren cac phan mem tinh toan thiit ke ca hien Nham dua cai nhin khai quat ve mdt cdng nghe thiet ke mdi, bai bao trinh bay phuang phap tdi uu mdt sd kich thudc thiit ke chi tiit tien Robot Idem tra mdi han theo muc tieu giam khdi lugng va dat he sd an loan cho phep bing phuang phap iing dung md dun phan lich ling suat dugc tich hgp tren cac phan mim CAD - CAE hien - cu thi la sir dung tren phan mem Inventor 2014 IL NOI DUNG 2.1 Gidi thieu ve Robot kiem tra moi han bang phuong phap sieu am su dung dau dd sieu am PHASED ARRAY va TOFD Robot kiem tra mdi han dua theo nguySn tSc sieu Sm, tien Robot dugc gSn cac dau dd sieu am PHASED ARRAY va TOFD cd chiic nang phat hien cac khuyet tat tien dudng ban va truyin dii lieu ve bg xii ly tin hieu Di thuc hien nhiem vu than Robot dugc gan 04 true mang 04 banh ma sat la cac banh nam cham tu tinh, cd nhiem vu dam bao su chuyen ddng ciia Robot dgc theo dudng han Di minh chiing cho phuang phap tdi uu hda thiit ki bang phuang phap CAD - CAE, bai bao trinh bay kil qua ldi uu kich thudc thiet ke cua chi tiit true mang banh tii nhu tren hinh theo muc tieu giam khdi lugng va dat he sd an loan cho phep Cietr^m^^^^ Hinh Md hinh Robot kiim tra moi hdn hdng phirong phdp sieu Tap chi KHOA HOC GIAO THONG \ AN TAI So dac biet - 1 / 167 Cdng trinh Khoa hpc 2.2 Ngi dung phuang phap t6i uu thiet ke tren ph4n mim CAD/CAE Cac budc thuc hiSn de tdi uu hda thiet ki dugc trinh bay nhu so dd sau - hmh 2: I QoytriatUltk^tSlini ( Thift k£ so b$ infi tunh 3D ma chi tilt c ^ t& uu tren {dim V mim CAD • Lga ch