The utility model relates to a part group is to machine, especially a lacing wire nest of tubes is to machine. It includes that horizontal stand, stationary work table, group support template, pad stake, mobile Workbench, hydraulic pressure elevator car and liftable, stationary work table and hydraulic pressure elevator car and horizontal stand rigid coupling, horizontal stand and mobile Workbench sliding connection, horizontal stand have the pad stake of connecting rather than the contact, two the group to the template respectively with stationary work table and mobile Workbench rigid coupling, the liftable supports the notch that passes on the horizontal stand and is connected with hydraulic pressure elevator car. It has been overcome traditional lacing wire nest of tubes and to big, the inefficiency of intensity of labour, group's drawback poor to the precision, has produced certain beneficial effect.