PROBLEM TO BE SOLVED: To avoid early breakage of a caulking punch which is assembled into an oscillation caulking device and is used for caulking a shaft end of a hub shaft.SOLUTION: A caulking punch 30 is equipped with a guide surface 56 which is formed on an outer periphery of a guide part 54 and contacts a shaft end of a hub shaft, and is further equipped with a caulking creation surface 57 which presses the shaft end in an axial direction towards an inner ring member. A shape of an axial direction cross section of a connection part, in which the guide surface 56 and the caulking creation surface 57 are connected to each other, is formed from a first circular arc 61 which is connected to the caulking creation surface 57 and a second circular arc 62 which is connected to the guide surface 56. The first circular arc 61 and the second circular arc 62 contact each other, and a curvature radius of the first circular arc 62 is smaller than that of the first circular arc 61.SELECTED DRAWING: Figure 1
【課題】 揺動かしめ装置に組み込まれて、ハブシャフトの軸端をかしめる用途に用いられるかしめ用パンチの早期破損を回避する。【解決手段】 かしめ用パンチ30は、ガイド部54の外周に形成されてハブシャフトの軸端と当接する案内面56を備えているとともに、前記軸端を内輪部材に向けて軸方向に押し付けるかしめ生成面57を備えていて、前記案内面56と、前記かしめ生成面57とがつながる連続部では、その軸方向断面の形状が、前記かしめ生成面57とつながる第1の円弧61と、前記案内面56とつながる第2の円弧62と、で形成されていて、前記第1の円弧61と前記第2の円弧62とが互いに接しており、前記第2の円弧62の曲率半径は前記第1の円弧61の曲率半径より小さい。【選択図】 図1
CAULKING PUNCH
かしめ用パンチ
12.05.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16C SHAFTS , Wellen |
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