Method for manufacturing helical blade
A technology of a helical blade and a manufacturing method, which is applied to the manufacturing field of the helical blade, can solve the problems of cumbersome operation, low production efficiency, unable to form a positive helical surface, etc., and achieves the effect of improving work efficiency, avoiding cross operation and good forming effect.
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[0032] Such as image 3 As shown, the manufacturing process of the spiral blade according to the present embodiment is as follows:
[0033] (1) Determine the position of the integral blade 1 and the mandrel 2: string the welded integral blade 1 with the inner hole on the mandrel 2, adjust the driving tapered roller 3 and the driven tapered roller 4, so that the two rollers clamp the whole At the starting end A end of the blade 1, the active tapered roller 3 can only rotate but cannot expand and contract in the axial direction. The driven tapered roller 4 can rotate under the drive of the driving tapered roller 3 . The driven tapered roller 4 is connected on a screw shaft 11 by a sliding bush, and the screw shaft 11 is threadedly connected with the fixing seat 12, so that the driven tapered roller 4 can rotate, the screw shaft 11 does not move, and the screw shaft 11 can only Axially moving along itself is realized by adjusting the tail end with a wrench, so that the driven t...
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