Dynamic Characteristic Analysis And Research On Inner Milling Crankshaft Machine Tool

Wi th th e de ve lo pm e n t of ma c hi n e to ol s in h ig he r sp e e d , hi g he r p r e ci s i o n a nd hi g he r f le xi b i li t y , th e hi g he r dy na mi c c ha r ac te ri s t i c is in c r e a si n gl y de ma n de d. T he dy na m i c c ha r ac te ri s t i c is on e o f th e im p o r ta nt in d e xe s o f ma c hi n e to o ls . I t is si g ni f ic an t to im p r ov e th e dy na m i c pe r f o rm a nc e of ma c hi n in g to ol . So it is n e c es s a r y to c a r ry on sy st e ma ti c dy na m i c a n a ly si s in or de r to of f e r th e ba si s w it h r a ti o na l sc ie n c e f or st r u c tu r e im p r ov e me nt of ma in pa r ts of ma c hi n e to o l .B a se d on th e st u d y on d y na m i c a na ly si s f or in n e r mi l l i ng c r an k s h a f t ma c hi n e to ol , th e e qu iv a le n t g e om e t r y mo d e ls of th e ma c hi n e to o l a nd it s ma in pa r ts a r e e st a bl i s h e d by So l i dw or k s . T hr e e di m e n si o n a l so l i d e le me nt s a r e c ho se n to pa r ti t i o n th e mo d e ls of th e mi l l in g ma c hi n e a nd it s ma in p a r ts a nd th e f in it e e le me nt mo de ls a r e e st a bl i s h e d .T he a na ly si s of th e mi l l i n g ma c hi n e a nd it s ma in pa r ts is c a r ri e d o ut .T he ma c hi n e to ol be d is a n im p or ta nt c o mp o n e nt f or ma c hi n e to o l , it s dy na m i c c a p a b il i t y w il l in f lu e nc e th e dy na m i c pe r f o rm a nc e o f g lo b a l ma c hi n e to o l, a nd th e n in f lu e nc eth e a c c u ra c y o f th e ma c hi n e . Ma c hi n e to o l be d g en e r al l y h a ve st r u c tu r e o f r ib b e d pl a n t, th e a r r an g e me nt f or ms of th e r ib be d pl a te w il l in f lu e n c e th e dy na m i c c a p a bi l i t y o f th e ma c hi n e to ol be d. T he r ef or e th e F E M mo de l of th e ma c hi n e to o l be d is se t up , to w hi c h w e ma ke ady na m i c a na ly si s to f in d th e w e a k p oi n t s .T he n ,c ha ng e th e a r r an g e me nt f o r ms of th e r ib b e dpl a te f or th e pr op os e of r a is i n g th e a nt i—vi b r a ti o n is pe r f o rm a nc e st r u c tu r a l mo de f r e qu en c y .A nd c a rr y o n dy na m i c a na ly si s of th e ma c hi n e to o l be d a nd th e in n e r mi l li n g c r an ks h a f tma c hi n e to ol . T h e a na ly si s r e su lt s is sh ow n , th e dy na m i c c a p ab il i t y of th e ma c h in e to ol be da nd th e in n e r mi l l i ng c r a nk s h a ft ma c hi n e to o l a r e a ll im p r o ve d.