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球头销和同步器锁销,是典型的汽车轴类零件。球头销是由球、曲面体、倒锥体、顺锥体、圆柱等部分组成。同步器锁销具有20°、50°、90°台阶,1×0.5环形槽。它们的形体几乎概括了轴类件的几何形状,比较难于加工。它们一直采用分序冷挤压和精密纵切工艺,加工半成品毛坯。我厂楔横轧试验小组和北京钢铁学院斜轧科研组,经过多年的试验研究,摸索出两个零件的连续精密楔横轧孔型。并建成我国第一台长棒料连续精密楔横轧机组—H630和H300楔横轧机组。在轧机线上轧出了精度较高的球头销和同步器锁销毛坯。这台机
Ball pin and synchronizer lock pin, is a typical automotive shaft parts. Ball pin is the ball, the surface body, inverted cone, along the cone, cylinder and other components. The synchronizer lock pin has 20 °, 50 °, 90 ° steps, 1 × 0.5 annular groove. Their shape almost summarizes the shaft geometry, more difficult to process. They have been using sequential cold extrusion and precision slitting process, processing semi-finished rough. I wedge cross-rolling plant and Beijing Institute of Iron and Steel Group rolling research group, after years of experimental study, worked out two parts of the continuous precision wedge cross-pass type. And built China’s first long bar continuous precision wedge cross-rolling unit-H630 and H300 wedge cross-rolling unit. In the rolling mill rolled out of high precision ball pin and synchronizer latch blank. This machine