Patent DE-102012001335-A1 (DE)
Title: Device, used for hot forming of metallic workpieces e.g. metal sheet circuit boards, includes a heating device, a transportation device, and a hot-forming press, where the heating device and the hot-forming press comprise a receiving space
Inventor: BECK MANFRED
IPC: C21D9/46
Filed: 2012-01-25
Abstract: The device comprises a heating device (11), a transportation device (15), and a hot-forming press (14), where the heating device and the hot-forming press comprise a receiving space (11w, 14w), and the receiving space comprises a protective gas connection device for filling the receiving space with a protective gas (3) and a protective gas retainer wall at its bottom-side and cover-side. The receiving space of the hot-forming press is upwardly open. A conveying device is arranged downstream to the heating device. The transportation device comprises a transfer device. The device comprises a heating device (11), a transportation device (15), and a hot-forming press (14), where the heating device and the hot-forming press comprise a receiving space (11w, 14w), and the receiving space comprises a protective gas connection device for filling the receiving space with a protective gas (3) and a protective gas retainer wall at its bottom-side and cover-side. The receiving space of the hot-forming press is upwardly open. A conveying device is arranged downstream to the heating device. The transportation device comprises a transfer device, which is engaged into the receiving space of the: heating device; hot-forming press; and conveying device and/or passes through the heating device, the hot-forming press and the conveying device. The transfer device is designed as a gripper device and/or as a roller conveyer. The transportation device further comprises an industrial robot with a gripper device. The receiving space of the heating device, the conveying device and the hot-forming press: is filled with the protective gas having a relative density of greater than 1 at a current protective gas temperature and a current air temperature; and encloses a workpiece to be processed so that it is covered by the protective gas. The receiving space of the gripper device of the industrial robot: is filled with the protective gas having a relative density of smaller than 1 at a current protective gas temperature and a current air temperature; and encloses the workpiece to be transported in such a way that it is covered by the protective gas. The protective gas is a heated combustion exhaust gas having a relative density of smaller than 1 at the current protective gas temperature and at the current air temperature. An outer contour of an upper edge section of the receiving space of the conveying device and the receiving space of the hot-forming press is congruently formed to an inner contour of a lower edge section of the receiving space of the gripper device of the industrial robot, or the inner contour of an upper edge section of the receiving space of the conveying device and the receiving space of the hot-forming press is congruently formed to the outer contour of the lower edge section of the receiving space of the gripper device of the industrial robot. A clearance space and a circumferential sealing element are formed between the outer contour of the upper edge section of the receiving space of the conveying device and the hot-forming press and the inner contour of the lower edge section of the receiving space of the gripper device of the industrial robot, or a clearance space and a circumferential sealing element are formed between the inner contour of the upper edge section of the receiving space of the conveying device and the hot-forming press and the outer contour of the lower edge section of the receiving space of the gripper device of the industrial robot. A lower tool of the hot-forming press is arranged in the receiving space of the hot-forming press so that it is covered by the protective gas. The heating device is a continuous furnace, and a tub-shaped furnace with inductive or conductive heating or with contact heating. A lock device is arranged between the successive receiving spaces. The heating device, the conveying device, the industrial robot and the hot-forming press are connected one behind the other in the course of the procedure.