NGHIEN CUU-TRAODOI THIET Kt CHE TAO MAY TAN RIVET KIEU NC DESIGNING AND MANUFACTURING NUMERICAL CONTROL (NC) RIVETING MACHINES PGS,TS Phan Dinh Huan Trudng Dai hgc Bach Khoa, Dai hpc Qudc gia TP Hd Chi Minh TOMTAT Ddi vai cdc moi ghep dinh tdn dgc biet, vai yeu cdu cao ve dung sai kich thuac, ve sai lech hinh hpc, ve bdn chdt moi ghep (long, trung gian, chgt); phucmg phdp tdn dpng vai cdc thiet bi tdn truyen thong khdng the ddng dupc Npi dung bdi bdo tap trung ve vdn di thiet ke, che tgo vd nghien cuu su dung loai thiet bi tdn dieu khien sd Vai dong mdy m&i ndy, cdc thong so cong nghe chu yeu nhu hdnh trinh dgp, van tdc tien, vdn tdc tdn, van toe lui co the kiem sodt vd dieu chinh mot cdch linh hogt Kit qud nghiin ciru dd duac irng dung thdnh cong vdo thttc tien sdn xudt Tit Ithoa: Vit- Dai dc bi, dai rdng, AC servo motor, mdn hinh cdm ung dieu khien so ABSTRACT For special rivet assembly with high requirements relating to the tolerance of dimensions, of geometry, of fit assembly nature; dynamic riveting method with the traditional devices can not be used The content of this paper concentrates on designing, manufacturing and applying the numerically controlled (NC) riveting machine With this new type of riveting machine, the main technological parameters such as traject, forward velocity, riveting velocity, backward velocity can be easily controlled and adjusted in a flexible manner The research results have been also successfully applied in industry Keywords: Ball screw- nut, timing belt, AC servo motor, touch screen, numerical control DAT VAN DE Mdi ghep dinh tan Id loai mdi ghep khdng thl thao dugc vd rdt thong dung nganh Ky thudt ca Ben canh mdi ghep cd dinh loai diing de cd dinh hai hay nhieu tiet may ghep Iai vdi (Hinh I) Trong cdng nghiep cdn sii dung hai loai mdi ghep dac biet Id mdi ghep lo^i (Hinh 2) va mdi ghep loai (Hinh 3) '^ ISSN 0866 - 7056 TAP CHI CO KHf VlfiT NAM, Sd nam 2017 www.cokhivietnam.vn NGHIEN CCrU-TRAO D O I ^ ^ ^ ^ ^ ^ ^ Hinh Moi ghep logi 2: 1) Dinh tdn; 2) Tiet mdy Hinh Moi ghep logi 1:1) Dinh tdn; 2) Tiel mdy ghep 1; 3) Tiit mdy ghep M o i g h e p tiu ticfn &6 doi, kich thUSc danh ngtala d Hinh Moi 2) Tiit mdy ghip 2; 3) Dinh ldn De thuc hien mdi ghep loai 1, phuang phap tan ddng vdi may dap ca cau tay quay trugt truyen thong dugc sii dung Vdi phuang phap ndy, cdc thdng sd ldm viec chinh nhu Iuc tan F, hanh trinh tan S, van tdc tien v,, van tdc tan v^, van tdc lui v^ khd cd the kiem soat va khdng the dieu chinh vd cap dugc 1) Dgng ccr servo; 2) H6p glim tac nonbacklash; 3) True vit; 4) Dai Be bi; S)BgtniylD dai rang; 6) Trye dan huong, 7) Be lap khuon tren; 8)dtnigt, 9) Khufin tren; )0) Khudn dum; II) Dg ISp khudn dudi, 5) Hanh trinh tan, H) Khoang each dinh De thuc hien mdi ghep loEii 2, voi yeu cau ky thuat la phai dam bao dp chinh xdc khoang each giira dinh ciia hai md dinh, phuang phap tan tinh dugc su dung Phucmg phap tan ndy ciing td thich hgp cho moi ghep loai nham dap iing yeu cau ky thuat ca ban cua moi ghep bdn ll: Dam bao dp ddi cua moi ghep hinh true tran cua phdn co djnh va khe hd cua phdn mdi ghep di dgng Ngi dung bai bao tap trung vdo viec tiiilt kl chl tao may tan tinh vdi doi tugng la mdi ghep dinh tan loai Sa dd nguyen ly ldm viec ciia thilt bi tan tinh dugc the hien d hinh vl)V|nt6ctan, v2)Vant6clii!(v2>vl) nhinauinn Hinh Sa nguyen ly hogt dpng mdy tdn rivet ISSN 0866 - 7056 TAP CHi CO KHi VIET NAM, S6 nam 2017 www.cokhivietnam.vn NGHIEN CUU-TRAODCI TINH TOAN THIET KE MAY TAN RIVET DIEU KHIEN SO 2.1 Ph4n cor Vdi cac so lieu ban ddu dugc cho Bang I, cac thdng sd lam viec ca ban cua cdc chi tiet may va cum chi tiet may dugc xac dinh qua tinh toan va chgn theo tieu chuan dugc the hien d Bang Bdng So liiu ban ddu: V^t lieu dinh tan Thep CT3 Thep 45 Duong kinh than Khoang each dinh dinh max (mm) mu dinh H (mm) Dung sai can dat d (mm) Nang suat 0,04 sp/ph 16 g Cdc thong so ca bdn: Dpng Ctf P= 0,850 KW n= 1500 v/ph H$p giam tdc B3 truyen dai rang - Lo^i H - Dudng kinh puly nho D|= 120mm u=10 Loai Non- Back- - Dudng kinh puly ldn D2=180nim lash gears - Khoang each true a = 250mm Vit dai 6c bi - Dudng kinh d = SOmm - Dudng kinh bi d^ = 6,3mm - Budc t = 5nun Duxmg kinh trirort (mm) d=35 Md hinh 3D toan may xay dyng tren may tinh dugc the hien d hinh Hinh Md hinh 3D mdy tdn rivet ISSN 0866 - 7056 TAP CHf CO KHf VIET NAM, Sd nam 2017 www.cokhivietnam.vn NGHIEN CU'U-TRAO DOI Cac bo phan l.DpngcaAC scno Bang dieu khien Than may True dan hutMig 5, Bp tmyen dong vit - dai 6c bi 6, Tam ga khuon rrcn Tam ga khuon duoi \ a Kiuing Tu dien Chirc nang Dong CO chnili cung cSp moment xoan \a toe dp cho may Dien khien cac chc dp lam viec va dong mo may Dam bao cimg vung, tao nen ket cau may Dan hucmg ehuyen dong tinh lien cua khuon di dong Bien chuyen dgng quay chuyen dong tmh tien Ga khuon tren Ga khuon duoi Chiij he thong mach dieu khien PLC \a cac linh kicn dien, dien tir 2.2 Phan dien va dieu khien Cac so niacli tong qua! duoc the hicn hinh \"a hinh Hinli So dan dm seiro niotor ffin/i So ddu d(n PLC ISS\08(.6-7056 TAP CHi CO KHi VIET NAM, So nam 201 ""w.cokhivicinain.vii - - NGHIEN CO'U-TRAO DOI CHE TAO MAY TAN DINH DIEU KHIEN SO Cac bg phan may da ch8 tao dugc th6 hien d cac hinh 8,9,10,11,12,13 Hinli Bo tl ll) en \ n- dm OL hi Hinh 11 Khuon tren vd khuon du&i //,•„/, y, _g^ truyen dai rdng Hinh 12 Song truat vd cdm bien hdnh trinh Hinh 10 Dong coAC-servo Hinh 13 Tu diin Hinh dang tdng the mdy da che tao dugc the hien d hinh 14 Hinh 14 Tdng thi mdy ISSN 0866 - 7056 TAP CHi CO KHf VIET NAM, Sd nam 2017 www.cokhivietnam.vn NGHIEN c u u - T R A O D O I KET LUAN VA H U ' N G PHAT T R I £ N Mdy tan rivet di£u khien sd da dugc nghien ciiu thiet kk vdi su trg giup cua cac phSn m6m chuyen nghiep tren may tinh va da dupe chS tao cdng Viec dua may vao san xudt cung dugc tidn hanh mdt cdch hgp Iy va hieu qua, sau chay thu nghiem vdi 1.000 mdi ghep dinh tan loai vdi ket qua dat yeu cdu 100%, nang sudt may dat yeu chu vdi 10 san pham/ phut Viec nghien curu dung ddng mdy tan NC cho mdi ghep dinh bdn ih Ioai dang dugc ti6n hanh Viec cap phdi tu dgng ciing nhu ket hgp nguygn ly tan orbital nham giam luc tao bien dang deo dgc true ciing la hudng phat trien cua de tai nghien cihi ndy Ngay nhdn bai: 12/6/2017 Ngay phan bien: 20/6/2017 Tfli liSu tham khao: [1] [2] [3] [4] [5] Trinh Chit, Le Van Uyin; Tinh todn thietki he ddn dong ca khi, t^p 1,2; NXB Giao due ViSt Nam, Ha Npi, 2009 Vo Van Chat, Luan van tot nghiep ky su; Thiit ke mdy ldn rivet kiiu NC, Tmdng Dai hpc Bach khoa, Dai hpc Quoc gia TP H6 Chi Minh (2017) Nguyen Trpng Hiep, Nguyen Van LSm; Thiit ki chi tiit mdy, NXB, Giao due ViSt Nam, Hd Npi, 1999 Ninh Diic Ton; Dung sai vd lap ghep, NXB Giao due Viet Nam, Ha N6i, 2007 Chevalier, Guide du dessinateur industriel, Hachette Technique, 2004 Ngi dung bdi bao la kSt qua nghien ciiu ciia de tai cap ca sd "Nghien cihi thiet ke che tao may tan rivet kieu NC", ma sd CS2017TK-01, DCSELAB, Trudng Dai hpc Bach khoa, Dai hgc Qudc gia TP Ho Chi Minh chu tri vd hd trp kinh phi.