High Purity Oxygen Generator,High Pressure Oxygen Generator,High Effective Customized Oxygen Generator,95% Purity Oxygen Generator Jiangsu Minnuo Group Co.,Ltd , https://www.mingngroupcn.com
Figure 1 Step 1 
Fig. 2 The second step is a sealing seat that requires large quantities of turning. The blank is a forging, and its cross-sectional shape after the completion of the vehicle is shown by the dotted line in Fig. 2 . The original process flow was 3 roughing, 1 semi-finishing, 2 finishing, and 6 processes. Using C7620 hydraulic semi-automatic lathes and C7220 profiling lathes, the ellipticity of the outer diameter after processing may not reach the requirements of 0.12 mm in drawings. Through analysis and trial and error, the process flow was shortened. Only three processes are used to complete all coarse and fine machining. The machining accuracy also meets the requirements of the drawings, and only one CNC lathe is used. The first process is shown in Figure 1, the small diameter card, with C7620 semi-automatic lathe, turning A, B surface and C, D chamfer. The second process is shown in Fig. 2. With a double-spindle CNC lathe, the outside diameter of the card has been roughed. Install two 80 on the upper blade. The outer diameter of the edge of the edge diamond blade, the blade of the T1 edge length 16 is used for the roughing of the F, E and K chamfers. Fig. 2 The blade of the length 12 of the second process is used for these 3 places. Fine cars. The lower tool holder is fitted with two self-made tool holders W1 and W2, and 55 are mounted on the respective heads. The outer diameter of the edge of the equilateral diamond blade is the same as that of the blade and the side length of the blade. Only the tip radius of the blade for the T3 is 1.6 mm, and the tip radius of the blade for the T4 is 1.2 mm. T3 and T4 are used for roughing and finishing of H, J and L, M, and N corners respectively, and after the corresponding NC machining programs are programmed, they can be turned. The third procedure, using the C7620 semi-automatic lathe, uses a spring fixture with a small internal diameter G, and uses the end face F to position, the finishing outside diameter A, the end face B, and the outside corner C. Through the application of mass production practices, the above process has been used to shorten the process flow by half, which is successful.