公开(公告)号：US4389870A

公开(公告)日：1983-06-28

申请号：US257421

申请日：1981-04-23

申请人： Hans Boeni ,  Beda Meier ,  Gabor Szacsvay

发明人： Hans Boeni ,  Beda Meier ,  Gabor Szacsvay

IPC分类号： B21J5/12 ,  B21K1/54 ,  B21K5/02 ,  B21K5/04 ,  B21D22/00

CPC分类号： B21J5/12 ,  B21J9/027 ,  B21K1/54 ,  B21K5/02

摘要： In the formation of engagement grooves in the shank of a tool for use in a hammer drill or chipping hammer, a matrix or die is divided along a junction plane into two matrix halves. A bore for holding the tool to be punched is formed along the junction plane so that the plane divides the bore in half in its axial direction. Guide openings are formed in the opposite sides of the matrix extending into the bore for receiving punching dies. The matrix halves combine to form these guide openings which are located in the junction plane so that the punching pressure is applied in this plane. The closing pressure for holding the matrix halves together is applied at right angles to the junction plane.

摘要翻译： 在用于锤钻或切碎锤的工具的柄中形成接合槽时，矩阵或管芯沿着接合面分成两个矩阵一半。 沿着接合面形成用于保持要冲压的工具的孔，使得该平面在其轴向方向上将孔分成两半。 引导开口形成在基体的相对两侧，延伸到用于接收冲压模的孔中。 矩阵一半组合以形成位于接合平面中的这些引导开口，使得在该平面中施加冲压压力。 用于将矩形半部保持在一起的闭合压力与接合面成直角地施加。