活塞式空压机部件加工工艺研发-曲轴加工夹具设计.docVIP

空压机曲轴加工工艺及夹具设计 摘 要 本设计为对空压机曲轴的机械加工工艺及夹具设计,曲轴是空压机上最难以加工的零件之一，本设计为单拐曲轴，在曲轴类型中结构较为简单，机械加工难度较低，曲轴毛坯由锻造加工而成，接着通过车削、铣削、钻削、铰等工序完成，粗基准为通过夹紧最左右端的轴颈定位的主轴颈中心线，精基准为通过定位销连接左右端面中心孔定位的主轴颈中心线，两个夹角为120°的斜油孔采用平面倾斜的专用钻床夹具，本设计夹具设计有钻床夹具（加工轴颈及曲柄臂内油孔）及专用车曲拐床夹具，钻床夹具主要以A型定位销，B型双孔支撑板，90°工作角度的Z轴V形块，以六角头螺栓配合六角螺母夹紧。夹具设计要尽量方便、简单。 关键词：曲轴；连杆轴颈；加工工艺；切削；夹具设计 The processing technology of air compressor crankshaft and grip design Abstract The design for the air compressor crankshaft machining technology and fixture design, the crankshaft is one of the most difficult to machining parts air compressor machine, the design for the single-throw crankshaft, in the crankshaft type structure is relatively simple, low machining difficulty, crankshaft blank by forging, then by turning, milling, drilling, reaming process completed, such as crude benchmark for clamping the journal positioning at about the center line of the main journal and fine benchmark about by locating pin connection end center hole location of the center line of the main journal, two Angle is 120 ° inclined oil hole plane tilted use special drill jig, This design jig design has drilling machine jig (processing shaft neck and crank arm inside oil hole) and special vehicle crank bed jig, drilling machine jig mainly by A type positioning pin, B type double hole support plate, 90° working Angle of z-axis v-shaped block, with hexagonal head bolts with hexagonal nut clamping. Fixture design should be as convenient and simple as possible. Keywords: The crankshaft；Connecting rod journal；Processing technology；Cutting；Fixture design PAGE PAGE 7 目 录TOC \o 1-3 \h \u TOC \o 1-3 \h \u TOC \o 1-3 \h \u 16412 1 前言 1 11176 1.1本设计的目的、意义及应达到的技术要求 1 25826 1.2本设计在国内外的发展概况及存在的问题 1 18983 1.2.1活塞式空压机的行业发展现状 1 19562 1.2.2我国活塞式空压机的行业存在的问题 1 16539 1.2.3活塞式空压机的行业市场前景 2 32654 1.3 本设计应解决的主要问题 2 2769 2曲轴零件分析 3 164 2.1曲轴零件的作用 3 18561 2.2曲轴零件的工艺分析 3 25691 2.2.1材料分析 3 10283 2.2.2结构分析 3 401 2.2.3确定零件加工内容 4 1551 2.2.4明确零件加工要求 5 2299 2.