| 摘要 |
<p>This is a kind of mandrel for processing workpiece with internal spline. Its technical characteristics are that two half-keys separated by a lever are installed in lower grooves of a cylindrical and elastic clack clip (8). The lever (10) has a conical head in the lower end within the cylinder, and an expanding sleeve (9), a spring (7), steel bells (6), a sleeve (5), steel balls (4), an upper sleeve (3), steel balls (2) and a nut (1) are assembled in order. This new and practical mandrel is used in processing workpiece with internal spline in high precision and efficiency. <IMAGE></p> |
