Bar stock pneumatic radial impact blanking method with high-efficiency and precision
A technology of precision blanking and bar material, which is applied in the field of low energy consumption, near-net and high-efficiency precision forming, and can solve the problems of large blanking force, low material utilization rate, and poor blanking section quality.
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[0012] The high-efficiency and precise blanking method of bar material pneumatic radial impact of the present invention utilizes the fatigue fracture mechanism of the bar material to drive the blanking die along the radial direction of the bar material for cyclic loading. The working contour curve of the blanking die adopts a cycloid, which is driven by the cylinder piston to perform radial impact motion. The bar is fixed and stationary, and the evenly arranged 7 impact cylinders and the 7 blanking dies driven by them are used to move in sequence, so that the load is continuously applied along the radial direction of the bar, which promotes the generation and expansion of the fatigue crack of the bar. Complete precision cutting. In order to realize the blanking of bars of different diameters, a replaceable blanking die is adopted.
[0013] The feeding device of the present invention is as follows figure 1 As shown, the pneumatic radial impact precision blanking device includ...
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