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The Design of the Modular of Precision Machine Tool and Jig for the Block Cylinder Boring in the Body of TY495 Diesel Engine
Abstract￡oThe cylinder body of diesel is a product which needs large mass production. In order to improve the production efficiency and meet the precision requested of the components processed, the topic is produced for designing the boring combination of precision machine tool and jig for the block cylinder in the body of TY495 diesel engine. This text describes the design ideas of the overall of the combined machine-tool and jig, the topic consists of two parts. The first is the overall design, a two-stage combination of precision boring tools, considering such factors as tool, cutting parameters, cutting force, cutting torque and cutting power and so on, thus common parts such as sliding table, the power box and so on are chosen by calculating spindle diameter, and the extend sizes, the link-pole model, then the operating cycle and the distance are determined. Thus the overall design is completed. The second part is the jig design, having analyzing the work piece, the location plan adopts a two-pin location; the clamp uses the hydraulic pressure device, it directly presses on the work piece￡?the jig-body utilize the frame structure, possess fine rigidity, causes the jig to maintain good long-term precision. This combined machine-tool can meet the drill hole precision and enhance processing efficiency. The laying out of the machine-tool is reasonable and the location of work piece is reliable. What?ˉs more, the accuracy is high and operation is easy, which can enhance the working efficiency and meet with the design requirement well.

Key word: Modular machine tool; The overall design; Jig design
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