Leveling die of automobile exhaust gas recycling cooling system diffuser

Abstract

The invention discloses a leveling die of an automobile exhaust gas recycling cooling system diffuser, which comprises an upper die structure and a lower die structure. The upper die structure comprises an upper template and a leveling upper die; the leveling upper die is fixed at the lower part of the upper template through an upper backing plate; a cavity for enveloping the largest outer peripheral surface of a work piece to be machined is formed on the surface of the leveling upper die; the lower die structure comprises a lower template; a leveling lower die is installed on the lower template; a work piece positioning block is arranged on the surface of the leveling lower die; the outer molded surface of the work piece positioning block is matched with the inner peripheral molded surface of the work piece to be machined; the lower die structure also comprises a leveling movable block; the leveling movable block is embedded at the bottom of an upper die embedded block; the rear end of the leveling movable block is connected with the upper die embedded block through a rotary pin; the upper die embedded block is embedded on the leveling upper die; an upper part ejecting pin is installed at the upper part of the leveling movable block in the upper die embedded block; and a lower part ejecting pin is installed in the leveling lower die in a position corresponding to the upper part ejecting pin.

Description

technical field [0001] The invention relates to the technical field of parts processing of an automobile exhaust gas recirculation system, in particular to a flattening mold for a diffuser of an automobile exhaust gas recirculation cooling system. Background technique [0002] A diffuser of an automobile exhaust gas recirculation cooling system, which is welded by an upper shell and a lower shell, in order to ensure that the upper shell and the lower shell have uniform welding edges, the splicing edge of the upper shell and the lower shell needs to be leveled. The general leveling process is completed by the leveling mold with the help of a punching machine. The leveling mold generally includes a leveling lower mold and a leveling upper mold, wherein a mold positioning block is arranged on the leveling lower mold, and a mold positioning block is arranged on the surface of the leveling upper mold. For a cavity that matches the outer surface, the workpiece is placed on the mol...

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides a flattening mold for the diffuser of the automobile exhaust gas recirculation cooling system, which can solve the problem that ordinary flattening molds cannot perform one-time leveling processing on workpieces whose leveling peripheral surface is smaller than the maximum outer peripheral surface of the workpiece

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