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一、原装置存在的问题热模锻上顶料装置的用途是把锻造好的坯料顶出上模腔。多数国产大型热模锻压力机的顶料装置一般都以床身为顶料的施力件,如图1所示为2000吨热模锻改进前的上死点顶料装置,A点即为施力点。顶料时,滑块位于曲轴的上死点位置(实际上是比上死点位置稍提前)故称上死点顶料。上顶料装置在使用中发现如下问题: ①维修调整时容易误调; ②杠杆上的顶料螺钉,虽热是双螺母紧固,但由于工作中冲击大,顶料螺钉容易松动;
First, the original device problems Hot die forging device on top of the use of forging a good blank out of the cavity. Most domestically produced large hot die forging presses are generally the top of the bed material as the top of the force of the pieces, as shown in Figure 1 for the 2000 tons of hot die forging before the top deadhead top feeding device, A point is Force point. Top material, the slider is located in the crankshaft top dead center position (in fact, slightly above the top dead center position) so called top dead center. Unglued device in use found the following problems: ① maintenance adjustment easy misjudgment; ② Lever on the top of the screw, although the heat is double nut tightening, but due to the impact of the work, easy to loosen the top feed screw;