Tunnel type or dragon-gate type processing system assembled with selected elements and its related interface means

A dragon gate type of processing system, comprising:

• a dragon gate structure;
• at least one lateral girder coupled to said dragon gate structure, for mounting a tool holding means and an automatic tool exchange means, said automatic tool exchange means including at least two common tool chests each having a tool exchange position and a tool output position, a tool exchange device including a tool turret, and a movable tool chest;
• a plurality of working tables mounted below said dragon gate structure;
• driving means for driving said working tables, said driving means including an axial displacement D.C. motor, electro-magnetic drive and coupling means, ratio transmission driving means, a pursuit stepper servo-motor, and a high frequency response backing means having a flexible transmission;
• control means for controlling the operation of said dragon gate structure, said lateral girder, said working tables, and said driving means, said control means including a positioning system having an analog feedback signal accumulative quantity setting means, a non-contact synchronous drive stepper type of setting control device, a differential type dynamic error-compensation system, controllable coupling means, a magnetic tape type of positioning control and processing circulation system having magnetizing and demagnetizing means and magnetic sensing devices, a positioning control means using a catch pin for precision positioning and locking, and a dual motor type of kinetic backlash elimination and locking means;
• a mechanical transmission interface coupled to said drive means and including a dual-end drive device coupled to said working tables, at least one oblique roller, at least one guide screw, and a driving gear assembly having a low vibration ratio;
• and
• an auxiliary rotary arm coupled to said dragon gate structure.