锻压技术

08F钢发电机爪极锻压工艺

英文标题：

作者：黄可丁仁华马雪峰高建国

单位：常州机电职业技术学院

分类号：TG316.1+92

出版年,卷(期):页码：2018,43(7):129-133

摘要：

简述了发电机爪极在发电机中的重要作用以及爪极精度对整个发电机的影响。通过分析四工位锻压模具的锻压过程，发现四工位锻压模具在锻压切边过程中由于下模间隙较大容易使多余材料进入下模，使最终爪极产生较大毛刺，同时部分爪齿向外张开，齿高缩短，爪齿变形。通过Deform锻压分析软件，简化锻压模型，提出了有效的解决方案，缩小了下模间隙，有效预防了爪齿向外张开、齿高缩短、爪齿变形等问题。软件的前置处理参数根据车间的实际生产情况确定，模拟分析了预锻工步中爪极中部材料的运动流向和爪极尖的终锻成形载荷。结果表明：在预锻工步的模拟过程中，当模拟进行到930步时，预锻距离已经完成，毛坯材料的中部呈现水平运动。在模拟过程中，爪极尖顶端成形载荷最高可达到672 kN，与试验结果吻合。

The importance of generator claw pole in a generator and the influence of claw pole precision on the whole generator were briefly described. By analyzing the forging process of fourstation forging die, it is found that the fourstation forging die makes excess material flow into the lower die easily because of the larger lower die clearance in the process of forging and trimming, and makes the claw pole produce larger burr ultimately. At the same time, part of claw teeth open outward, the height of teeth is shortened, and the claw teeth deform. Then, based on forging analysis software Deform, the forging model was simplified, and the effective solution was proposed to reduce the lower die clearance and prevent the above problems effectively. However, the preprocessing parameters of software were determined according to the actual production situation of workshop, and the movement direction of material in the middle of claw pole in the preforging process and the final forging load of claw pole tip were analyzed. The results show that during the preforging simulation process, when the simulation reaches the 930th step, the preforging distance is completed, and the middle part of blank material shows horizontal movement. In the simulation process, the maximum forming load of claw pole tip can reach 672 kN which is consistent with the test results.

基金项目：

常州机电职业技术学院院级课题（2017-zdkj-02）；常州市工业机器人系统集成技术重点实验室（CM20153002）；江苏省高等职业教育高水平骨干专业建设项目（苏教高【2017】17号）

黄可（1987-），男，学士，实验师，E-mail：244193480@qq.com

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