Harmonic drive uses a constructed controllable elastic deformation to transfer mechanical motion. Harmonic drive is usually composed of three basic components, including a rigid wheel with inner teeth, a flexible wheel with outer teeth that can produce radial elastic deformation when working, and a wave generator installed inside the flexible wheel, oval shape, with flexible rolling bearings in the outer ring. The number of external teeth of the fM-40-50-2UH flexible wheel is less than the number of internal teeth of the rigid wheel. When the wave generator rotates, the outer teeth of the flexible wheel corresponding to the long axis direction just completely engage the inner teeth of the rigid wheel
Edm cavity machining
Edm cavity processing includes forging die, die casting die, extrusion die, rubber mold, plastic mold, etc. Hamenaco HD die casting die harmonic reducer CSF-40-50-2UH EDM cavity is more difficult, mainly because it is blind hole processing, metal removal, working fluid circulation and electrolytic product exclusion conditions are poor, tool electrode loss can not rely on feed compensation; Secondly, the processing area changes greatly, the processing process of electric regulation is larger, and because of the complex cavity, electrode loss is not uniform, Hamenako HD die casting die harmonic reducer CSF-40-50-2UH has a great impact on the processing accuracy, so the cavity productivity is low, quality is difficult to guarantee.
Common edM cavity machining methods include single electrode translation method, multi-electrode machining method, decomposition electrode machining method and program-controlled electrode machining method.
C1) Single electrode translational method is the csF-40-50-2UH, medium and finishing method of rough Hamenaco HD die-casting die harmonic Reducer completed with one electrode. First, a rough gauge with low loss and high productivity is used for machining, and a translational head is used to move small circles in a plane, as shown in FIG. 7-2-3. According to rough, medium and fine order, change the electrical standard step by step, and increase the electrode plane momentum successively, in order to compensate before and after the two processing standard between the cavity side discharge gap difference and the surface microscopic roughness difference, to achieve the cavity side imitation finishing, Hamenako HD die casting die harmonic gear CSF-40-50-2UH until the completion of the whole cavity processing. Single electrode translational method processing clamping is simple, the elimination of electrical corrosion products is convenient, the most widely used, but it is difficult to obtain high precision cavity, it is difficult to process clear edge, clear Angle cavity.
C2) Multi-electrode machining method is a method that coarse and fine machining are separated and different electrodes are replaced to process the same cavity.
