A kind of inner flanging mold and flanging process of double-layer annular parts

Abstract

The invention discloses a double-layered ring part inward flanging die and a flanging technology. The double-layered ring part inward flanging die comprises a lower template, an upper template, a die shank, a fixing plate, a pressing block, a pressing plate, a concave die, a positioning block, a lower cushion plate, a spring, a stop collar, a shock absorber, a guide pillar, a convex die, a guide sleeve, an upper cushion plate, and a small guide pillar, wherein the die shank is connected with the upper template through four screws; the die is connected with a punching machine through the die shank; the pressing plate is connected with the concave die through a screw; the positioning block is accommodated in a cavity of the concave die; the guide sleeve is tightly matched with the upper template; the guide pillar is tightly matched with the lower template. The flanging technology of the double-layered ring part inward flanging die is completed on an overhanging press with 800 KN and comprises the following steps: aligning the upper template with the lower template, clamping the upper template and the lower template on an upper platform and a lower platform, sleeving the part on the equipment, raising up the upper template, rebounding the convex die under the action of the shock absorber, and stepping aside the flanging part of the ring part. The double-layered ring part inward flanging die and the flanging technology disclosed by the invention have the advantages that the inner side flanging of the double-layered ring part can be implemented, the production efficiency can be greatly improved, the machining size of the part can be ensured, and the good effect can be achieved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to an inner flanging mold and flanging process for a double-layer annular part. Background technique [0002] Such as image 3 , 4 , 5. The double-layer ring is a ring with a V-shaped cross section. The inner layer has 12 notches evenly distributed along the circumference, and the notches should be flanged toward the normal direction of the inner surface. Since the part is double-layered, only the inner layer is flanged, and the flanging direction is still the normal direction of the inner surface. In view of the above characteristics, the overall flanging cannot be realized, and only a single flanging can be considered. The fitter flanging is not only It is inefficient and the size of the parts cannot be guaranteed. Therefore, it is also necessary to consider using a mold for flanging to ensure the flanging size of the part, but there is no similar single-turning mold structu...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of the inner flanging of the double-layer ring, ensure the flanging size of the part, and greatly improve the processing efficiency.

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