Workpiece transfer robot system

A workpiece transfer robot system comprising:

• a machine tool provided with a workpiece support section;
• and
• a robot capable of transferring a workpiece relative to said workpiece support section of said machine tool;
• said machine tool comprising a cover surrounding at least said workpiece support section, said cover including a first side wall provided with a first opening usable for a workpiece transferring task of said robot;
• said robot comprising:
• a track member defining a traveling axis extending in a direction perpendicular to said first side wall of said cover of said machine tool;
• a slider attached to said track member and capable of traveling along said traveling axis;
• a first arm attached to said slider and capable of swinging about a first swing axis;
• a second arm attached to said first arm and capable of swinging about a second swing axis parallel to said first swing axis;
• and
• a workpiece hold section provided on said second arm and capable of accessing said workpiece support section through said first opening of said cover of said machine tool,
• wherein said traveling axis obliquely intersects with said first swing axis;
• wherein said traveling axis and said first swing axis are arranged in a virtual plane extending horizontally to a floor face on which said robot is installed;
• and
• wherein said first arm extends obliquely relative to said track member.