龙门型石材数控复合锯切机床圆锯片的受力分析与优化  

Force Analysis and Optimization for Type of Longmen Stone CNC Cutting Machine Composite Circular Saw Blade

作　　者：刘贝[1] 李慧[1] 冯显英[1,2] 王兆国[1] 路笃存 

机构地区：[1]山东大学机械工程学院,济南250061 [2]山东大学高效洁净机械制造教育部重点实验室,济南250061 [3]中共汶上县委组织部,山东济宁272501

出　　处：《组合机床与自动化加工技术》2017年第3期38-40,共3页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：为了减小因切削区域垂向力作用使圆锯片基体产生的交变应力,改善和提高圆锯片性能,采用ANSYS有限元分析对圆锯片进行力学分析后,提出了一种圆弧型基体表面,在锯片锯齿厚度一定的情况下,较好地改善了平切圆锯片的垂向切削承受能力,圆锯片切削性能和使用寿命得到了显著的提高。实验结果表明:优化后的锯片质量只增加了200g,而切削区域垂向力产生的交变应力减小了30%以上,弯曲变形更是减少了40%以上,锯片的使用寿命和切削性能得到了较大的提高。In order to decrease alternating stress for the circular sawblades matrix generated by the vertical force in the cutting area,and improve the performance of circular sawblades,after carrying out a mechanical analysis on circular sawblades by ANSYS finite element analysis,a type of arc surface of the substrate is established,which can greatly improve the circular sawblade＇s ability to bear cutting vertical force on the premise that the thickness around sawblade serrate is certain,which makes the circular sawblade cutting performance and service life significantly improved. The experimental results showthe optimized blade quality is increased by only 200 g,while alternating stress produced by cutting area vertical force is reduced more than 30%,bending deformation is reduced more than 40%,and the service life of sawblade is improved greatly.

关 键 词：圆锯片 弯曲变形 交变应力 结构优化 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TH122[机械工程—机械设计及理论]