Title:
DEVICE FOR BENDING AND HARDENING CYLINDRICAL MATERIAL
Document Type and Number:
Japanese Patent JPS55130342
Kind Code:
A
Abstract:
This invention relates to a device for the bending and/or distortion-free hardening of bar material, particularly leaf springs, which device has a plurality of frame-shaped tools which upon their closing bend the heated workpiece and lower it in clamped condition into a treatment tank. For the bending and lowering the tools are moved in vertical direction in a portal and discharging from the portal in its lowest position and fed by guide rails of a transport device in a treatment tank. Thereupon the tools are grasped by a lift portal and raised into a position lying above the treatment tank in which position they are opened, the workpiece is removed, and the opened tool is transferred via guide rails of another transport device into a ready position. In order to make a rapid change of tools possible, the upper guide rails for the return of the opened tools can be moved out of their normal position over a part of their length which corresponds at least to the axial depth of a tool and replaced by rail sections which are arranged on a changing device which can be displaced with a tool thereon.
Inventors:
ROTAARU RIYUTSUKERUTO
KURISUTOFU POORU
KARURUUEERIHI PURORU
PAURU SHIYUTETSUFUESU
KURISUTOFU POORU
KARURUUEERIHI PURORU
PAURU SHIYUTETSUFUESU
Application Number:
JP3918680A
Publication Date:
October 09, 1980
Filing Date:
March 28, 1980
Export Citation:
Assignee:
PROLL & LOHMANN BETRIEBS GMBH
International Classes:
B21D7/06; B21D11/10; B21D53/88; C21D1/673; (IPC1-7): B21D7/06