DLS Linear Transmission and Positioning System - HEPCO - #9

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Application Examples 7 The mas ter X-axi s t ra n smi s s i o n i s s h own f i t t ed wi t h t h e Hepc o h igh prec i s ion planetary gearbox and a ser vo motor . I t i s connec ted to the s lave X-axi s by the Hepco t ransmi s s ion shaf t connec t ing between the output shaf t of the f i r s t X-axi s and the i npu t s haf t o f t h e s e c o nd X-ax i s by f l e x ibl e coupl ings . The Y-axi s t ransmi s s ion al so has the same mo t o r a n d g earbo x ar rangement f i t ted. I t i s connec ted to the car r iages of the X-axes us ing the long f ixing c lamps whi ch f i t di rec t ly onto the car r iage plate mount ing holes . Both mas ter X-axi s and the Y-axi s have a swi t ch cam on the car r iage and a sys tem of two l imi t swi t ches and a home swi t ch f i t ted. The system illustrated is a logical extension of the basic X-Y system above. A short cantilever Z-axis is attached to the Yaxis to give controlled vertical motion. To minimise the moment load on the slides and bearings, the Y and Z-axes are connected directly by their carriages. In systems where the movement is rapid and the moving axes are not very long, the Y and Z-axes can use the lightweight beam to minimise the moving mass, and so improve dynamic performance. The cantilever Z axis is shown with the fitted planetary gearbox, which is well suited to the servomotor which is also shown. It is possible to back-drive this gearbox. If this is not permissible, then a brake motor should be specified. Hepco offers a brake option on its range of AC motors. X-Y System X-Y-Z System