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Automatic limit eccentric shaft chamfering tool
The eccentric shaft shown in Figure 1 is a very important part of the offset press. Since the load on the shaft is relatively large, there is no empty sipe at the root of the φ18h7 section to avoid excessive stress concentration and break the shaft. In the machining, when the φ22h7 shaft surface and the φ18h7 eccentric shaft surface are ground, a ring of burrs and edges must be generated at the end of the φ22h7 shaft surface, and the sharp corner edges thus produced cause the assembly of the powder metallurgy bushing extremely. difficult. Since the eccentricity of φ22h7 and φ18h7 is 1.9±0.05mm, the radial difference at a_1 point