【作者】 韩召；

【导师】 王希靖；

【作者基本信息】 兰州理工大学 ， 材料加工工程， 2008， 硕士

【摘要】 金川公司镍矿是我国最大的地下有色金属矿山,该公司的镍产量占国内总量的90%,因此,金川公司所坐落的金昌市有中国镍都的美称。但是,在公司进一步扩大生产量规模的时候,却受到了桁架生产低效率的制约。在对该公司的实际考察,发现该矿具有地应力高,围岩破碎的特点,因此,在开采矿石的过程中需要用到大量的支护桁架,目前,金川集团公司针对此类桁架采用的全是人工焊接的方法,不仅工人的劳动强度大、工作环境恶劣,而且对原材料和能源的浪费也比较大,特别是对焊条和电能的浪费十分惊人;其次,由于桁架的焊接质量参差不齐,给桁架的后续使用工作带来极大的不便。基于以上的原因,拟采用一种自动成型和焊接的方法来实现此类桁架的工业化生产,从而使焊接过程和焊接质量能够达到一种比较理想的目标。本课题所设计的桁架自动焊接设备重点解决了顺序通电焊接防止电网污染及非直长筋料自动送进和准确定位问题,完成了矿山支护用桁架的自动焊接生产线的研制。它将机械设计、单片机技术、PLC技术、焊接自动化技术、气(液)压技术和上位机组态技术等集成在一起,实现了桁架焊接的自动化,很大程度上降低了工人的劳动强度;抛弃了手工电弧焊的方法,减少了对环境的污染,改善了工人的工作环境;由于采用电阻点焊和电阻对焊的方法,在生产过程中节约大量的焊条和电能,降低了桁架的生产成本;采用自动化焊接设备后也为公司节约了大量的劳动力,提高了公司的科学技术水平,从而增强了公司产品的市场竞争力。本文从桁架成型焊接生产设备机械部分的设计出发,阐述了桁架成型焊接设备研发设计的全过程,其机械部分设计方案定为一条小型的焊接生产线。包括一台底环成型焊接设备和一台组装成型焊接设备。控制部分采用可编程控制器(PLC),焊接电源变压器的控制采用单片机控制(电阻点焊控制器),并且要实现单片机和可编程控制器的良好衔接。最后,本文在实际设计及现场调试的基础上,利用MATLAB软件做机械手定位系统的仿真,其仿真目的是使机械手理想的定位过程可以在理论上实现。并在理论上可确定控制器中的参数。更多还原

【Abstract】 Jinchuan Nickel Mine is the largest undergrounded metal mines, the company’s nickel output accounting for 90% in our nation ,.The Jinchuan company located in Jinchang city , because the city rich in nickel, it has known to the wold for nickel city. However, when the company expand the production of nickel further, they have to do with the lowly efficiency difficult in the process of production.through actual inspectin in the company,we found that people need a large number or supporting truss in the process of mining ore.but Jinchuan Group make the truss throng the old method at present.for example:they used to artificial welding methods,which increase workers intensity and make the conditions worse.at the other hand ,the raw materials and energy waste quite strong,especislly on the electrode waste very alarming.thirdly there is different in the quality of welding truss,it bring great inconvenience on the following use.considering above shortcomings,we intend to design an automatic molding and welding eqipument,which could keep the quality or welding and welding process to achieve industrislized production.which also make the quality of welding more desirable.This automatic welding equipment solve the order of welding power grid to prevent pollution and non-straight long tendons material automatically sent to and accurate positioning.It also give the design of the mine supporting truss with the automatic production lines for welding.the machine make up of PLC technology,microcontroller technology, automation technology, welding, gas (liquid) pressure technology and PC technology, integrated configuration.The machine reduce the labor intensity of the workers to a large extent;We also abandoned the manual arcwelding method to reduce the environmental pollution and improve the working environment for workers;It due to resistance spot welding and resistance welding method in the production process saves. The electrode power also reduce the cost of production truss and save a lot of labor, thus could enhance the company’s products in the market competitiveness.This subject meet actual production as a main point,it also give the whole process of design options for truss forming welding equipment.The subject is designed as a small welding production lines,which include mechanical parts and control parts. In my design,welding method used mainly resistance spot welding and butt welding,molding process is a hard thrust cylinder shape, right triangle rings taken special molding.We adapt the programmable controller(PLC) as control parts, Finally, this paper use MATLAB software to do manipulator positioning system simulation in the actual design and debugging on the basis of the scene, its purpose is to enable simulation manipulator ideal location process which can achieve in theory. It also can determine the parameters in the controller in theory.更多还原