Bending Apparatus

A bending apparatus having a ram start-up device for starting a ram comprising at least one of an upper table to which a punch is attached and a lower table to which a die is attached, the bending apparatus bending with the punch and the die a workpiece abutted against abutments of a back gauge so as to be positioned, the bending apparatus comprising:

• a ram start-up device configured to be movable in the lateral direction;
• a foreign object detector that detects entry of a foreign object into a region of movement of the ram start-up device;
• and
• a controller that prevents the ram start-up device from moving when the entry of the foreign object is detected.

A bending apparatus having a ram start-up device for starting a ram comprising at least one of an upper table to which a punch is attached and a lower table to which a die is attached, the bending apparatus bending with the punch and the die a workpiece abutted against abutments of a back gauge so as to be positioned, the bending apparatus comprising:

• the ram start-up device configured to be movable in the lateral direction;
• an input part that inputs product information;
• a bending sequence determiner that determines a bending sequence of the workpiece based on the product information;
• a tool determiner that determines the punch and the die bending the workpiece and tool layout at each bending sequence;
• an abutment point determiner that determines a point of an abutment in the lateral direction based on the bending sequence, the tool and the tool layout;
• and
• a ram start-up device point determiner that pre-determines a point of the ram start-up device in the lateral direction within a range of an abutting width procured from at least one abutment based on the determined point of the abutment in the lateral direction, and that when the ram start-up device actually moves to a point different from the pre-determined point, determines the actual moving point as a final point of the ram start-up device.

A bending apparatus having a ram start-up device for starting a ram comprising at least one of an upper table to which a punch is attached and a lower table to which a die is attached, the bending apparatus bending with the punch and the die a workpiece abutted against abutments of a back gauge so as to be positioned, the bending apparatus comprising:

• the ram start-up device configured to be movable in the lateral direction;
• an abutment point determiner that determines a point of an abutment in the lateral direction based on bending sequence, tool and tool layout decided by a worker according to product information;
• and
• a ram start-up device point determiner that determines a point where the ram start-up device is actually positioned as a point of the ram start-up device in the right-left direction within a range of an abutting width procured from at least one abutment based on the point of the abutment in the right-left direction.