Study On The Machining Technique For The Shaft Of Cylindrical Multistage Pump

The rapid development of the national economy increase the requirement for the mechanical manufacturing industry. Workers in the industry are constantly research and innovation, in order to meet new demands.Shaft is one of the typical parts. As the diameter and length is more than1:20, slender shaft has a poor rigidity. Cutting force, cutting heat, vibration and other factors generated in manufacturing process will have a direct impact on the dimensional accuracy and geometrical precision of the workpiece.Based on the shaft of cylindrical multistage as an example, the paper analyze the shaft machining process, and put forward the effective processing method and the improvement measures. Through the calculation of operation allowance and process size, Precision analysis of the key working procedure, developed a complete set of long axis machining process file. According to the situation at the scene, in the process of processing the influence factors of main dimensions and shape tolerance precision and the processing of the solution are analyzed. In this paper, the cutting parameter is optimized and draws the conclusion on the basis of guarantee the accuracy, the actual processing of the cutting dosage is unreasonable. Take semi-refined turn φ100cylindrical for example, compared with the feed speed in the actual processing, the feed speed which combine cut speed with feed rate is27.7%higher. There is a lot of space to Improve production efficiency.