目 录
摘要···1
Abstract·························2
第一章 引言····3
1.1 概述······3
1.2 火焰清理机的发展概况········3
1.3 火焰清理机的特点····3
1.4 火焰清理机清理装置的主要结构和功能·······4
第二章 门式车架改造······5
2.1 误差校验········5
2.2 强度校核······6
第三章 升降系统及溜板改造··············8
3.1 丝杠选取··········8
3.1.1 计算额定动载荷Ca’··········8
3.1.2 根据额定动载荷选择滚珠丝杠副的相应参数·········9
3.1.3 验算稳定性······9
3.1.4 验算刚度·········9
3.1.5 验算效率·····10
3.2 传动系统改造及分析···10
3.2.1纵横向齿轮箱设计及分析·········10
3.2.2减速机选取···10
第四章 课题总结与望··12
第五章 参考文献···13
致谢·················.14
附录一：英文翻译····15
附录二: 英文翻译原文·································································21
摘 要
钢坯清理厂目前所用的设备为老式的清理机，它是上世纪九十年代产品，设备老化，维修困难，加工零件精度低，加工范围小，功能已很难适应新的工艺及船用工件，所以改造时主要从以上几方面考虑。经过与工厂协商，在改造中主要解决这些问题，改装割炬升降装置，进而适应钢坯厂大型钢坯的加工。改造后应达到通用性好，可进行直线及任意曲线的清理，可配置任何形式的割炬。精度高，改造后的数控火焰清理机运行精度、定位精度及转角处精度均要得到保证。清理质量好，清理机运行平稳，定位精度高。自动化程度高，切割全过程自动控制。数控系统功能齐全。
本论文的工作重点是数控火焰清理机机械本体的改造，通过对机械本体的不合理地方重新设计和计算机数字控制技术应用，完成了数控火焰清理机的改造，并且在实际中进行了运行和调试．本论文的工作及贡献
主要有下面几个方面；
1．进行了机械方案设计、计算与分析，其主要内容包括机械本体，传动
系统及加装的自动调高，和割炬升降装置改装等。。
2．对改造后的数控火焰切割机进行了调试和运行，参数设置，诊断分析
以及精度检测。’
关键词：数控火焰清理机、改造、机械本体、电气控制 加工
ABSTRACT
Billet cleaning plant equipment currently used to clean up the old machine, it is the nineties of last century products, equipment aging, maintenance difficulties, low precision machining parts, machining range of small, function has been difficult to adapt to the new technology and marine artifacts, so transformation of the above areas is a major consideration. After consultation with the factory, in the transformation
Mainly to solve these problems, the modified torch lifter, and then adapt to large-scale billet steel billet plant processing. After transformation, should reach common good, can be straight and clean up any curves that can be configured to any form of cutting torch. High precision CNC flame transformed cleaning machine running accuracy, positioning accuracy and precision of the corner have to be guaranteed. Clean-up of good quality, clean machine running smoothly, high positioning accuracy. High degree of automation, automatic control of the whole process of cutting. Numerical control system fully functional.
Focus of this paper is the numerical control flame cleaning machine mechanical body transformation, by mechanical body to re-design and unreasonable where technology computer numerical control, CNC flame cleaning machine to complete the transformation, and carried out in practice running and debugging . Work and contribution of this paper
There are the following aspects;
1. For the mechanical design, calculation and analysis, which mainly include mechanical body, transmission
System and the installation of the automatic increase, and other torch lifter conversion. .
2. After the transformation of CNC flame cutting machine debugging and running, parameter settings, diagnostic analysis
And the accuracy. '
Key words: CNC flame cleaning machine, transformation, mechanical body, the electrical control processing
引言
1.1概述
所谓钢坯火焰清理就是利用高温火焰的气割和熔除作用将钢坯表面缺陷烧除的工序。该工序能有效提高钢材的轧制质量。为了生产高质量的优质钢材提供了必要的保证。钢坯火焰清理按工作温度分为热钢坯火焰清理和冷钢坯火焰清理；钢坯火焰清理按操作方式分为手工作业和机械作业方式。其中实现机械作业的装置称火焰清理机，他是通过专门烧嘴将氧气和炼焦煤气进行混合，燃烧火焰预热连铸钢坯，然后利用高压纯氧流与钢坯表面产生氧化反应，对钢坯火焰清理机需要采取机械作业方式，冷钢坯火焰清理机即可采用手工作业方式，又可采用机械作业方式。冷钢坯火焰清理即可采用手工作业方式，又可采用计息作业方式，但由于我国目前非常缺乏专门的火焰清理机的设计、制造研发能力，国内钢坯火焰清理主要采用手工作业冷钢坯清理方式。
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