Rectangular silencer assembly welding tooling

Abstract

The invention discloses a rectangular silencer assembly welding tooling, which comprises a bottom plate, a positioning frame, support positioning blocks and a positioning insertion pin, wherein the positioning frame is a semi-surrounding type support frame with the inner outline being matched with the outer shape of a silencer casing to be positioned, the support positioning blocks are arranged at the front part and the back part of the bottom plate corresponding to a front support frame and a back support frame to be welded on the silencer casing, and the positioning insertion pin is arranged in a connecting hole of a connecting flange of an air inlet pipe to be welded on the silencer casing and is connected with the bottom plate in a single-freedom sliding way in the horizontal direction. The rectangular silencer assembly welding tooling can simultaneously position the casing, the front support frame, the back support frame and the connecting flange of the air inlet pipe of a rectangular silencer, the structure is simple and compact, the positioning is reliable, the clamping and the dismounting of workpieces are convenient, when the rectangular silencer assembly welding tooling is used for welding the front and back support frames of the rectangular silencer with the air inlet pipe and the connecting flange of the air inlet pipe, the relative dimension precision among all welding elements can be ensured, the welding efficiency and the welding quality are effectively improved, the work intensity of workers is reduced, and the product qualification rate is improved.

Description

technical field [0001] The invention relates to a frock fixture, in particular to an assembly welding frock capable of simultaneously positioning a rectangular muffler shell, a front bracket, a rear bracket and an intake pipe connecting flange. Background technique [0002] The muffler is a device that prevents sound transmission and allows airflow to pass through. A noise reduction device installed in the intake and exhaust system can eliminate aerodynamic noise and block the propagation of sound waves. It is an effective tool for noise control. Its shape and interior There are various forms of structure. The rectangular muffler includes rectangular shell, air intake pipe, exhaust pipe, front support and rear support. The exhaust pipe is connected and fixed, and the front bracket and the rear bracket are welded on the outer wall of the muffler shell to install and fix the muffler. Therefore, whether the inlet pipe connection flange and the positioning of the front and rear ...

AI Technical Summary

Problems solved by technology

[0002] The muffler is a device that prevents sound transmission and allows airflow to pass through. A noise reduction device installed in the intake and exhaust system can eliminate aerodynamic noise and block the propagation of sound waves. It is an effective tool for noise control. Its shape and interior There are various forms of structure. The rectangular muffler includes rectangular shell, air intake pipe, exhaust pipe, front support and rear support. The exhaust pipe is connected and fixed, and the front bracket and the rear bracket are welded on the outer wall of the muffler shell to install and fix the muffler. Therefore, whether the inlet pipe connection flange and the positioning of the front and rear brackets are accurate determines whether the muffler can For normal installation and use, under normal circumstances, the intake pipe and the connecting flange are generally welded and fixed first, then the muffler shell and the intake pipe are positioned and welded, and then the muffler shell and the front and rear brackets are positioned and welded, not only The efficiency is low, and after three welding processes, due to the accumulation of positioning errors, the relative position size of the intake pipe connecting flange and the front and rear brackets often has a large error from the standard value, making it impossible for the muffler to be installed smoothly on other On the equipment, it becomes a substandard product, resulting in waste of materials and resources

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