A mold and method for forming a concave inner ring seal sleeve

Abstract

The invention discloses an inwards-concave n-shaped inner ring sealing sleeve forming die and method. The forming device comprises a male die (2), a female die (3), a guide plate (4), a female die frame (5), a top plate (6) and a rear guide column die frame (7); during molding, the inner ring sealing sleeve (1) is divided into two parts of a straight waist-shaped surface and an inclined waist-shaped surface by adopting a fan-shaped curved surface along the chord length direction of the inner ring sealing sleeve (1) fan-shaped groove and perpendicular to the bottom ring surface (1c) of the n-shaped cross section, then a right-angle concave mold is used (3a) and an oblique-angle female die (3b) are used for simultaneously punching and forming the two parts. According to the forming die and method, the forming of the part is completed at one time, the part is convenient to assemble and disassemble, and the quality of the shape surface is good.

Description

technical field [0001] The invention belongs to the field of mechanical processing, in particular to a forming die and a forming method for an inner concave "J"-shaped inner ring seal sleeve of an engine. Background technique [0002] like figure 1 and figure 2 As shown, it is an inner ring sealing sleeve structure for an engine. The formed inner ring sealing sleeve 1 is a thin-walled sheet metal part with an inverted "J"-shaped fan-shaped groove with a concave cross section. The outer ring surface of the inner ring sealing sleeve 1 has a face facing The inner surface forms an acute angle with the bottom annulus, and the other face forms a right angle with the bottom annulus. With the usual bending forming structure, since the mold moves up and down on the hydraulic press, there will be interference when the acute angle surface is closed, and the forming cannot be completed. After forming, the parts are wrapped on the punch, making it difficult to disassemble the parts. ...

AI Technical Summary

Problems solved by technology

With the usual bending forming structure, since the mold moves up and down on the hydraulic press, there will be interference when the acute angle surface is closed, and the forming cannot be completed. After forming, the parts are wrapped on the punch, and it is difficult to disassemble the parts.

[0003] The current process uses flat wool to bend the section into an inverted "J"-shaped fan-shaped groove, and then manually knocks the inner concave surface with the inner tire. This process is long, the workload is large, and the quality of the shape is poor. The tire is not easy to disassemble from the part after forming

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