JPS6167943U

JPS6167943U -

Info

Publication number: JPS6167943U
Application number: JP14994384U
Authority: JP
Priority date: 1984-10-03
Filing date: 1984-10-03
Publication date: 1986-05-09
Also published as: JPH0421616Y2

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例である平ダイス式
転造盤の正面図であり、第２図及び第３図は、そ
れぞれ第１図における−断面図及び−断
面図である。第４図は、第１図に示す転造盤の右
側面図であり、第５図は、第３図に示す締結部の
一部を概念的に示す説明図である。第６図は、第
５図の締結部の転結特性をグラフで表した図であ
る。１０：平ダイス式転造盤、１４：ガイドフレー
ム（フレーム部材）、１８，２０：スペーサグロ
ツク（ブロツク部材）、２２：ガイド突起、２４
：スライダ、２８：平ダイス、３０：ダイスホル
ダ、３２：油圧シリンダ、３８：同期用ピニオン
、｛４８：長尺ボルト、５０：ナツト｝（締結手
段）、５２：軸方向穴。 FIG. 1 is a front view of a flat die rolling machine which is an embodiment of the present invention, and FIGS. 2 and 3 are a sectional view and a sectional view, respectively, of FIG. 4 is a right side view of the rolling machine shown in FIG. 1, and FIG. 5 is an explanatory diagram conceptually showing a part of the fastening section shown in FIG. 3. FIG. 6 is a graph showing the transfer characteristics of the fastening portion shown in FIG. 5. 10: Flat die type rolling machine, 14: Guide frame (frame member), 18, 20: Spacer block (block member), 22: Guide protrusion, 24
: slider, 28: flat die, 30: die holder, 32: hydraulic cylinder, 38: synchronizing pinion, {48: long bolt, 50: nut} (fastening means), 52: axial hole.

Claims

[Claims for Utility Model Registration] (1) A pair of flat dies that apply a predetermined rolling process to the outer circumferential surface of the rolled object by rotating the rolled object while pinching the object, and a pair of flat dies that are respectively arranged on both sides of the clamping direction, sandwiching the
In a flat die rolling machine equipped with a frame member that receives a rolling reaction force from the rolled object applied to the flat dies, the frame members on both sides are subjected to a fastening load in a direction in which they approach each other with a block member in between. The flat die type roller is fastened by a fastening means in the direction in which the rolling force is generated, and the fastening load is set to such a magnitude that the clamping pressure on the block member does not disappear regardless of the rolling reaction force. Machine making. (2) The fastening means is a long bolt and a nut fastened thereto, and the bolt is heated and thermally expanded in the axial direction, and then the nut is tightened, and the fastening is caused by contraction in the axial direction due to cooling. The rolling machine according to claim 1 of the utility model registration claim, which generates a load. (3) A utility model registration claim in which the elongated bolt has an axial hole opening at least at one end, and heater means for heating and thermally expanding the bolt is disposed in the axial hole. A rolling machine according to item 2 of the scope.