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.
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
The existing equipment for processing the necking of automotive air conditioning pipe mufflers is inconvenient when replacing the necked end.
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.
It enables convenient installation and disassembly of the tapered end, solves the problem of inconvenient replacement, and improves processing efficiency.
Smart Images

Figure CN224372602U_ABST