车床支架机加工工艺（Lathe support machine processing technology）.docVIP

车床支架机加工工艺（Lathe support machine processing technology） 1, the background and significance of graduation thesis (design): As a typical mechanical and electrical product, the lathe plays an important role in the machine building industry The utility model solves the problems of complicated, precise, small batch and changeable parts in the modern machine building. The utility model can stabilize the processing quality and greatly improve the production efficiency. In the process of product processing, the positioning and clamping of the workpiece in the fixture is particularly important, the fixture is A clamping device that covers almost all of the operating processes from machining to assembly. Due to a large number of processing exercises As a fixture, fixture design becomes very important in manufacturing systems, which directly affects the quality of the process, Productivity and manufacturing costs. In this paper, by analyzing the structural features and processing requirements of the support parts, a The design of a more reasonable fixture, in order to ensure the machining accuracy of the parts to provide an economical and practical work Each has its practical value. 2, graduation thesis (Design) research objectives The design of the lathe support parts processing process and some process of special fixture design, lathe The main processing surface of the bracket parts is the plane and the hole system. Generally speaking, the processing accuracy of the plane is guaranteed than that of the plane It is easy to ensure the machining accuracy of the hole system. Therefore, the design follows the principle of first face, rear hole. Hole and plane The processing is clearly divided into roughing and finishing stages to ensure the machining accuracy of the hole system. Main processing procedure safety Row is the first processing of the bottom plane, and then with the bottom plane positioning processing each hole system. The whole processing process selects the group The