A necking apparatus for a muffler shell

By designing a constricted end structure that is easy to disassemble and install, the problem of inconvenience in replacing the constricted end in the existing automotive air conditioning pipe muffler housing processing device is solved, thus improving processing efficiency.

CN224372602UActive Publication Date: 2026-06-19CHONGQING LINGCHUAN AUTO PARTS MFG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING LINGCHUAN AUTO PARTS MFG TECH CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing equipment for processing the necking of automotive air conditioning pipe mufflers is inconvenient when replacing the necked end.

Method used

A necking processing device for a muffler housing was designed. The device uses a first hydraulic cylinder to drive a support component to bring the mounting plate and the necked end close to the muffler housing. The necking is formed by cold pressing. The design of connecting bolts and mounting grooves allows the necked end to be disassembled and installed together with the mounting block for easy replacement.

Benefits of technology

It enables convenient installation and disassembly of the tapered end, solves the problem of inconvenient replacement, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of necking processing equipment, specifically to a necking processing equipment for a muffler housing. It includes a worktable and processing components. The processing components include a first hydraulic cylinder, a support component, a mounting plate, a mounting block, a necking end, multiple connecting bolts, and a clamping component. The mounting plate has a mounting groove, and the mounting block has multiple screw holes. When the necking end is worn and needs replacement, the connecting bolts are unscrewed from the screw holes and the mounting plate, and then the necking end can be removed together with the mounting block for replacement. When installing a new necking end, the mounting block on the necking end is inserted into the mounting groove, and then the connecting bolts are tightened in the mounting plate and screw holes, thus completing the installation of the necking end. This utility model facilitates the installation and disassembly of the necking end for easy replacement.
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