Welding fixture of rocker arm of turbine casing

Abstract

The invention provides a welding fixture of a rocker arm of a turbine casing. The welding fixture comprises a bottom plate, a turbine casing fixing mechanism, a bypass valve limiting mechanism and a rocker arm locating plate. The turbine casing fixing mechanism comprises a supporting vertical plate fixed to the bottom plate, a locating seat and a limiting plate. The bypass valve limiting mechanismcomprises a limiting support fixed to the bottom plate and a limiting push rod, and a limiting press head is arranged at the end of the limiting push rod. The turbine casing is fixed to the locatingseat in a sleeve manner through a turbine casing center hole. The limiting plate and the outer side wall of a turbine casing runner opening cooperate to limit rotating of the turbine casing. The limiting push rod is pushed to the work position, and the limiting press head can press a bypass valve. One end of the rocker arm locating plate is fixed to the top of the supporting vertical plate, a locating hole is formed in the other end of the rocker arm locating plate, and a handle of the rocker arm is sleeved with the locating hole. The position of the turbine casing is fixed through the turbinecasing fixing mechanism, the bypass valve limiting mechanism is used for limiting swing of the bypass valve, precise locating is achieved, welding precision is guaranteed, and meanwhile the fixture is simple in mounting process and high in welding efficiency.

Description

technical field [0001] The invention belongs to the technical field of turbine shell rocker arm welding, and in particular relates to a turbine shell rocker arm welding tool. Background technique [0002] Turbine shell is the main part of turbocharger. The turbocharger with bypass valve can obviously improve the low-speed performance of the car, increase the low-speed torque, reduce the fuel consumption and pollution at low speed, and improve the performance of the engine at high speed. Indicators and use reliability. The turbocharger with a bypass valve needs to be equipped with a rocker arm operation room to control the bypass valve. When welding the rocker arm of the turbine shell, there are not only requirements for the clearance between the rocker arm and the bushing, but also extremely high requirements for the angle of the rocker arm. [0003] The existing welding tooling for the valve rocker arm assembly of the turbine shell, the process of fixing the turbine shell...

AI Technical Summary

Problems solved by technology

[0003] The existing welding tooling for the valve rocker arm assembly of the turbine shell, the process of fixing the turbine shell and the rocker arm assembly is cumbersome, a lot of time will be wasted in actual operation, and the welding efficiency is low; Provide support, but cannot effectively control the swing of the valve transmission assembly in the left and right directions, resulting in low welding accuracy

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