连杆零件机械加工工艺及加工大孔车夹具设计（有CAD图纸）.pdf

Fixture is mechanical processing an indispensable component, in the machine tool technology to drive the development of high-speed, efficient, precise, complex, intelligent, environmentally-friendly direction, fixture technology is moving in the high precision, high efficiency, module, mix, general economic direction. The design task of this paper is to process the large hole in the machining parts (connecting rod),. Because this part belongs to mass production, the drilling precision is higher, so the design of a special drilling fixture, to ensure the quality of parts. Due to the high rate of the utilization of fixture, the economy is good, use elements of the strong function and a small number, low support costs, reducing the production cost; the clamping device, reduce downtime, improve production efficiency. Lathe fixture design, it is first necessary to carefully analyze the machining technology requirements, using the basic principles and methods of fixture design, fixture design scheme to develop; to