1. Tool design ideas and features The machine clamp indexable turning tool is to assemble the finished indexable insert with reasonable geometry and cutting edge on the tool holder by mechanical clamping method. When a cutting edge is worn and can no longer be used, it can be quickly replaced by indexing. New cutting edge. Machining with machine clamp indexable turning tools has the following features: The tool geometry and cutting performance are stable, and the positioning accuracy and repeatability are high, which can ensure the change of the tool tip position within the allowable range of the workpiece precision and the consistency of the machining accuracy. The blade is reliable in clamping and is not easy to loose under the action of cutting force impact, vibration and cutting heat. Long tool life, no sharpening, easy operation, and reduced auxiliary man-hours such as stop tool change. The tool holder can be easily and quickly indexed, and can be used repeatedly. The service life is long, which can reduce the inventory and simplify the tool management. The machine clamp can be indexed with a rake angle of g=-4° and a rake angle of l=-4°. The cutting edge has sufficient strength to withstand large cutting force impact and avoid cutting edge. The indexable car blade adopts the diamond-shaped national standard universal blade, which can ensure the smoothness of the automatic chip and curve processing during the cutting process, and is easy to realize the standardization and serialization of the tool, and is suitable for the profile turning in the automatic production. The cutter adopts a screw pin compact structure, and the screw clamps the blade through the counterbore of the blade. The structure is simple, the parts are few, the positioning precision is high, the cutting edge repeating precision is high, and the chip space is large. The characteristics of the material to be processed, and considering the wear of the blade during the cutting process, TiC+Al2O3+TiN composite coated blade is used. The blade reduces friction between the chip and the tool, maintains high hardness and good oxidation resistance at high cutting temperatures, thereby increasing blade life and reducing surface roughness of the part. In addition, the addition of TiN to TiC-based cemented carbide by the new heat treatment process developed by our company can significantly improve the thermal conductivity and chipping resistance of the insert, and can be fully utilized in the cutting process with high requirements for micro-cutting and surface precision. Performance advantages of TiC based cemented carbide. 2. Tool design method The spherical dimensions of the differential housing to be processed are S=f138.5mm, f124mm, and f161mm, respectively. Workpiece material: Ductile iron GH45-33-15 (core hardness HB150 ~ 190). Machining accuracy requirements: position tolerance with respect to the reference is f0.03mm, surface roughness Ra1.6μ; m. Cutting amount: cutting speed vc=2m/s, feed rate f=0.4mm/r, depth of cut ap=3mm. Processing machine: S1-325 CNC machine. Door Handle On Rosette,Brushed Lever Door Handle,Front Lever Door Handle,Fancy Solid Lever Door Handle Wenzhou Shenghong Metal Products Co.,Ltd , https://www.shenghonglock.com