Air feeding nozzle of automatic press fitting equipment for automobile barometer pointer and using method

Abstract

The invention discloses an air feeding nozzle of automatic press fitting equipment for an automobile barometer pointer. The air feeding nozzle aims to solve the problems that an existing air nozzle cannot meet the using requirement of new automatic press fitting equipment, the air tightness is poor, local air leakage is caused, and due to the fact that the filling amount is too large instantaneously, an air pipe connected to the outer portion of the air nozzle is prone to tube bursting. The air nozzle comprises a head end and a rod end, the head end and the rod end are integrally manufacturedor fixedly connected, the top end face of the head end is hemispherical, the outer side end face of the rod end is cylindrical, vent holes formed along the central axis are formed in the head end andthe rod end, one or more layers of annular protrusions are arranged on the outer end face of the rod end, and the number of the annular protrusions is three or five. The upper portion of the air feeding nozzle is manufactured to be hemispherical, the middle of the air feeding nozzle is provided with a large hole for ventilation, the upper portion of the air feeding nozzle is manufactured to be hemispherical so that the air feeding nozzle can be tightly attached to a ventilation threaded hole of the automobile instrument air pressure pointer, and air leakage is prevented; and a stepped hole isformed in the air feeding nozzle, the lower portion of the air feeding nozzle is provided with a small hole, the upper portion of the air feeding nozzle is provided with the large hole, a small swirling airflow vortex is formed, and air leakage is prevented.

Description

technical field [0001] The invention relates to the field of air path guidance, in particular to an upper air nozzle of an automatic press-fitting device for an automobile barometer pointer and a use method thereof. Background technique [0002] Most of the pointers in the existing automobile instrument meters are press-fitted by the air pressure device. Firstly, the two air pipe connectors are connected to the air threaded pipe of the air pressure pointer of the automobile instrument manually, and the air is supplied to the air pipe through the inflating device. Along the trachea, it enters the ventilating threaded pipe of the air pressure pointer of the automobile instrument, and presses the pointer on the automobile dashboard with the pressure head device. During this process, it takes 1-2 minutes for the workers to connect each instrument pointer venting threaded pipe Time, efficiency is very low, the overall time-consuming labor is long, and the level of automation is l...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to solve the problem that the existing air nozzle cannot meet the needs of the new automatic press-fitting equipment, which is prone to poor airtightness and local air leakage, and because the air pipe connected to the outside of the air nozzle is prone to produce The problem of bursting tubes, and then put forward the upper gas nozzle and its use method of the automatic press-fitting equipment for the pointer of the automobile barometer

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