BAR MATERIAL TRANSFER METHOD AND CONVEYOR

摘要

A chuck device in a robot hand is used when receiving a primary formed workpiece from electrode chucks. After receiving the primary formed workpiece, and before inserting the primary formed workpiece from its shaft stem part into an insertion hole in a forging press main body, a portion held by the electrode chucks of the primary formed workpiece is gripped by a chuck device different from the chuck device, to release the gripping of the primary formed workpiece by the chuck device. Therefore, it is possible to insert the holding portion held by the electrode chucks from the side of the shaft stem part of the primary formed workpiece into the insertion hole. Thereby providing a bar material transfer method capable of accurately inserting the bar material from its one end into a predetermined positioning hole even if a bar material serving as a workpiece is short.

主权项

1. A bar material transfer method in which a conveyor including gripping means is prepared, the method for gripping a bar material held by holding means on one end part side of the bar material more than a portion held by the holding means with the gripping means of the conveyor, to receive the bar material from the holding means, and conveying the received bar material to a predetermined positioning hole, to insert the bar material from the one end part of the bar material into the predetermined positioning hole, the method comprising the steps of:
using one gripping means in the conveyor at the time of receiving the bar material from the holding means; gripping the portion, which has been held by the holding means, of the bar material with another gripping means which is different from the one gripping means in the conveyor after receiving the bar material, and before inserting the bar material from the one end part of the bar material into the predetermined positioning hole; and releasing the gripping of the bar material by the one gripping means at the time of inserting the bar material from the one end part of the bar material into the predetermined positioning hole.