公开(公告)号：US11224976B2

公开(公告)日：2022-01-18

申请号：US15768641

申请日：2016-10-14

申请人： TOYODA IRON WORKS CO., LTD.

发明人： Kenji Kushida ,  Nobuyuki Kawahara

IPC分类号： B25J15/08 ,  F27D3/00 ,  B25J15/00 ,  F27B5/12 ,  B25J19/00 ,  C21D9/00 ,  F27B5/13 ,  B25J11/00 ,  B25J9/00 ,  C21D1/673

摘要： An apparatus for loading/unloading workpieces, including a furnace heating a workpiece, and a robot loading and/or unloading a workpiece into/from the furnace. The robot may include a manipulator linkage and a fork at an end of the manipulator linkage. The fork may have an upper side on which a workpiece is placed while being loaded into and/or unloaded from the furnace. The fork may include a parallel arrangement of fork elements, each fork element in the fork having a length and rectangular cross section perpendicular to the length. Each fork element may have a workpiece carrying surface on which a workpiece is placed and an opposite surface to the workpiece carrying surface. The fork element may include a heat insulator disposed on the workpiece carrying surface at least over an area where a workpiece is placed to equalize longitudinal thermal expansions in the workpiece carrying surface and the opposite surface.