导柱的导向结构应用最普遍，其主要零件是导柱和导套。导柱导套既可以设置在动模一侧，也可以设置在定模一侧，应根据模具结构来确定。The
guiding structure of the guide column is the most common, and its
main parts are guide posts and guide sleeves. Pilot guide sleeve
can be set on the side of the movable die, or it can be set on the
side of the mold, which should be determined according to the mold
structure.在不妨碍脱模的条件下，导柱通常设置在型芯高出分型芯面较多的一侧。Without disturbing the conditions of the stripping, the
guide posts are usually provided on the side of the core which is
higher than the parting core.
新浪博客
导柱的结构一殷可按标准件选用(GB4169.4～5-84)，也可自行设计。The structure of the guide column can be selected according to the standard parts (GB4169.4 ~ 5-84), can also be designed.导柱的典型结构形式为带头导柱，除安装部分的台肩外，精密导柱长度的其余部分直径相同，两者的区别在于导滑部分有油槽，这是根据需要加工的；除有肩外，安装配合部分直径比外伸的工作部分直径大，属于台阶式导柱，一般与导套配合使导柱的典型结构形式用，其目的是保证导柱安装孔和导套安装孔同心。The typical structure of the guide column is the leading guide post. The rest of the precision lead length is the same except for the shoulder of the mounting part. The difference between the two is that there is an oil groove in the sliding part, which is processed according to the need. The purpose of the guide structure is to ensure that the guide post mounting hole and the guide sleeve mounting hole are concentric. The diameter of the working part is different from that of the working part.另外，所示导柱还可兼有模板间的定位作用，适用于因固定板太薄而在固定板，面再加垫板的场合。In addition, the guide column can also be used between the template positioning effect, suitable for the fixed plate is too thin and fixed plate, surface and then pad the occasion.
导柱结构的技术要求如下：
1.材料 material
导柱应具有硬而耐磨的袁面和坚韧而不易折断的内芯，因此多采用20钢（经表面渗碳淬火处理）或者T8钢、TlO钢（经淬火处理），硬度为so～55HRC。Guide column should have a hard and wear-resistant Yuan surface and tough and not easy to break the inner core, so more use of 20 steel (by surface carburizing quenching) or T8 steel, TlO steel (quenched), hardness of so ~ 55HRC.
2.直径和长度 Diameter and length
导柱的直径在12～63mm之间时，按经验，其导柱导套直径和模板的宽度之比应在0.06～0.1之间，所以根据模板的宽度可以选择导柱的直径。When the diameter of the guide post is between 12 and 63 mm, the ratio of the diameter of the guide rod and the width of the template should be between 0.06 and 0.1, so the diameter of the guide post can be selected according to the width of the template.导柱导向部分的长度应比凸模端面的高度高出6～lOmm，以免出现导柱未导正方向而型芯先进入型腔的情况中。The length of the guide post guide portion should be 6 to 10 mm higher than the height of the end face of the punch so as to avoid the case where the guide post is not oriented and the core is first introduced into the cavity.
3.表面粗糙度 Surface roughness
导柱固定部分的表面粗槌度为R。=0.8Fcm。导滑部分表面常用Ra=0.4t.em。 The surface roughness of the fixed portion of the guide post is R. = 0.8Fcm. The surface of the sliding part is commonly used Ra = 0.4t.em.
公差配合及同定导柱与导柱孔之间一般采用H7/f7或H8/f8间隙配合；而与安装孔之间采用H7/k6过渡配合，并注意要可靠地固定。The H7 / f7 or H8 / f8 clearance is generally used between the tolerances and the same guide and guide posts. The H7 / k6 transition is used with the mounting holes and the insulation is securely secured.
当然，导柱的形式不是典型结构时，其与模板的连接形式也将发生变化。Of course, the form of the guide column is not a typical structure, its connection with the template form will also change.采用紧配合，直接在模板上固定导柱，省去了垫板，加工也容易，采用螺钉连接，方法也较简便灵活。Using a tight fit, directly on the template fixed guide column, eliminating the pad, processing is also easy, the use of screw connection, the method is also more simple and flexible.
4.形状 shape
导柱前端应做成锥台形或半球形，以使导桂能顺利地进入导向孔。The leading end of the guide post should be tapered or hemispherical, so that Gui Gui can successfully enter the guide hole.由于半球形加工困难，所以导柱前端形式以锥台形为多。锥台高度取与其相邻的圆柱直径的1／3。Due to the difficulty of hemispherical processing, so the leading form of the leading column to the cone shape for more. The cone height is 1/3 of the diameter of the adjacent cylinder.大中型模具导柱的导滑部分应开设油槽，以贮存润滑油。Large and medium-sized mold guide column of the sliding part of the guide should be opened to store lubricants.
以上就是晋升泰为您带来的关于导柱的导向结构以及技术要求，希望对您有所帮助。
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