Tool for welding nut of oval muffler

Abstract

The invention discloses a tool for welding a nut of an oval muffler. The welding tool comprises a bottom plate, a positioning plate, a positioning block, a supporting plate, a positioning bolt and a compaction block, wherein the positioning plate is used for positioning an outer barrel of the oval muffler in the horizontal direction; the positioning block and the compaction block are used for positioning a bracket in the vertical direction; and the positioning bolt is horizontally arranged, is connected to the supporting plate along the axial direction of the positioning bolt in a single-degree-of-freedom sliding way and is used for positioning the nut which is required to be welded to the outer barrel of the muffler. The tool for welding the nut of the oval muffler is positioned accurately and reliably, has a relatively simple structure, is easy to process and manufacture, makes workpieces relatively conveniently assembled and disassembled, can quickly and accurately position the workpieces, can reduce the operating difficulty of workers, improves production efficiency and quality of products, has low reworking rates and reduces material waste.

Description

technical field [0001] The invention relates to a tool fixture, in particular to a welding tool capable of positioning an outer cylinder of an elliptical muffler and a nut to be welded on the outer wall of the outer cylinder. 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 many forms of structure. The muffler includes the main components such as elliptical cylindrical outer cylinder, intake pipe, exhaust pipe and bracket. In order to protect and decorate the muffler, a cover is usually set on the outer wall of the outer cylinder, and the cover is tightened by bolts. It is fixed on the outer wall of the outer cylinder. Since the muffler is a seal, it cannot be drilled and tapped on the ou...

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 many forms of structure. The muffler includes the main components such as elliptical cylindrical outer cylinder, intake pipe, exhaust pipe and bracket. In order to protect and decorate the muffler, a cover is usually set on the outer wall of the outer cylinder, and the cover is tightened by bolts. It is fixed on the outer wall of the outer cylinder. Since the muffler is a seal, it cannot be drilled and tapped on the outer cylinder. Therefore, it is necessary to weld a nut on the outer wall of the outer cylinder for the connection and fixing of the casing. Usually, a casing is needed to weld the nut. For reference, the welder welds by observing the corresponding position of the eye hole on the cover and the outer cylinder of the muffler. The welding quality is affected by the operation of the welder. For some inexperienced welders, it is difficult to ensure the accuracy of the nut welding position, resulting in The eyeholes on the cover cannot be aligned with the threaded holes of the welded fixing nuts. If the deviation is low, it can be installed barely, but internal stress will be generated on the cover, which is easy to deform and unsightly. If the deviation is high, it needs to be reworked. Not only the production efficiency is low, but also the waste of materials

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