| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to conduct the accurate centering of a die and a punch in a heading area by using a roller member, and make it possible to conduct adjustment so as to keep a close contact state even if wear and tear occurs in the roller member. SOLUTION: On both side faces to become right and left sliding faces of a ram 2 in the heading machine, right and left liners 11...11 excellent in wear resistance are provided, while providing right and left roller members 13...13 excellent in wear resistance, projecting inward from the right and left side faces of a body frame 1, and making the right and left clearances in an area for conducting the heading in close contact with the right and left liners zero, on a plurality of places opposing to the right and left liners 11...11 of the right and left side faces to become the right and left sliding faces of the body frame 1, and a adjusting mechanism 14, for adjusting the projecting amount to the right and left inside faces of the body frame 1 of these right and left roller members 13...13, is provided.
|
