文档介绍：摘要
本次设计的题目是发动机支架立式单面组合钻床设计,是在发动机支架上加工4个深6mm,尺寸要求17的孔。
本次设计分为总体设计和主轴箱设计两个部分。首先,对机床进行总体结构的设计,需要确定切削用量、计算切削力、切削扭矩、切削功率及刀具耐用度,然后以此确定主轴、外伸尺寸等,绘制“三图一卡”,即被加工零件工序图、加工示意图、机床尺寸联系总图,以及生产率计算卡。其次,对主轴箱进行设计,绘制设计原始依据图,确定主轴箱及各个通用部件的选用,计算各齿轮的传动比和主轴的坐标位置。最后,根据分析的结果,对齿轮和轴的强度和刚度进行校核。
本专用机床能满足加工要求,保证加工精度,机床运转平稳,工作可靠,结构简单,装卸方便,便于维修、调整、操作,减轻了工人的劳动强度,提高了劳动生产率。
关键词:组合机床;钻孔;主轴箱;传动设计
Abstract
The design topic is Engine bracket of vertical bination drilling machine design. Aimed at the engine support processing 4 meet the size requirements of the 17 and 6mm deep hole.
The design is divided into two parts overall design and the headstock design. Firstly, the overall structure of the machine tools design, need to determine the cutting parameters, calculation of cutting force, cutting torque, cutting power and tool life, and thus determine the main shaft, extended size, etc..Rendering the "three plans for a card", that is, process map parts to be processed, processing diagram, machine sizes contact General Plan, and the productivity calculation card. Secondly, the design of the spindle box, drawing the original design basis, for the identification of mon spindle box and the selection ponents, to calculate the transmission gear ratios and the principal axis coordinates. Finally, the results of the analysis, the gear and shaft to check the strength and stiffness.
This special machine can meet the processing requirements to ensure the machining accuracy, tool smooth operation, reliable, simple, easy handling, easy maintenance and adjustment. Operation simple, reducing labor intensity and improve labor productivity.
Key words:special purpose machine; drilling; spindle box; transmission design
第1章绪论
组合机床综述
近年来,组合机床装备向着提高组合机床加工精度、组合机床柔性、组合机床工作可靠性和组合机床技术成套性的方向发展。一方面,加强数控技术的应用,提高组合机床产品数控化率;另一方面,进一步发展新型部件,尤其是多坐标部件,使其模块化、柔性化,适应可调可变、多品种加工的市场需求。据专家分析,机床装备的高速和超高速加工技术的关键是提高机床的主轴转速和进给速度。该届博览会上展出的加工中心,主轴转速10000~20000 r/min,最高进给速度可达20~60m/min,复合、多功能、多轴化控制装备的前景亦被看好。在零部件一体化程度不断提高、数量减少的同时,加工的形状却日益复