高精度连杆加工工艺及夹具设计关键技术分析

The document "Connecting Rod Machining Technology and Fixture Design" discusses the importance and challenges of manufacturing connecting rods for diesel engines. Connecting rods play a critical role in the transmission of power within the engine, and as such, the precision and accuracy of these components are of utmost importance. This paper focuses on the high demands for dimensional, shape, and positional accuracy in connecting rods, as well as the challenges presented by their poor rigidity and susceptibility to deformation during the machining process. To address these challenges, the document emphasizes the need to carefully plan the machining process, including the separation of rough and finish machining operations for key surfaces. Step-by-step reduction of machining allowances, cutting forces, and internal stresses, as well as the correction of post-machining deformations, are essential to achieve the required technical specifications for the connecting rods. Moreover, the design and implementation of effective clamping fixtures are crucial to ensure the stability and accuracy of the workpieces during machining. In summary, the machining of connecting rods requires a thorough understanding of the technical requirements and challenges associated with the component. By carefully planning the machining process and employing suitable fixture design, manufacturers can effectively meet the stringent demands for dimensional accuracy and shape precision, ultimately ensuring the reliable performance of connecting rods in diesel engines. This document serves as a valuable resource for individuals involved in the manufacturing and design of connecting rods, offering insights and best practices for optimizing the machining process and fixture design.