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Patent Searching and Data


Title:
BENDING FORMING METHOD AND APPARATUS IN HOT FORGING
Document Type and Number:
Japanese Patent JP2014200843
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve a problem in a conventional method and apparatus for simultaneously bending both ends of a high temperature bar workpiece in a C-shape in which both ends are bent by driving rack gears 6 to rotate a pinion gear as shown in FIG. 6 and using the rotation thereof, however, high-pressure air is required for driving the rack gear, and the cost of peripheral equipment such as a compressor and air piping also becomes expensive, and also the movement of the apparatus is restricted.SOLUTION: A ball screw is used for driving an apparatus. A moving table 11 connected to a ball screw nut 10 is slidably moved by the rotation of a ball screw shaft 9. Accordingly, a high temperature rod-like workpiece 2 set to the moving table 11 is bent at both ends by the passage of a fixing roller 12 at a first step. The moving table 11 pushes in one side of the L-shaped lever 15 by the further movement, and thereby both ends of the workpiece are pushed in and bent in a C-shape by the other side of the L-shaped lever 15.

Inventors:
NEMOTO YUJI
YUSE KAZUTOSHI
OHASHI KAZUHIRO
NAKAO MITSUO
Application Number:
JP2013090738A
Publication Date:
October 27, 2014
Filing Date:
April 05, 2013
Export Citation:
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Assignee:
TECH ITOH KK
International Classes:
B21D7/06