Ultrasonic rolling and welding process

Abstract

The invention discloses an ultrasonic rolling and welding process. The conventional vertical arrangement direction of a vibration cylinder, and an ultrasonic oscillator and a transducer which are arranged in the vibration cylinder is changed into the horizontal arrangement direction; both ends of the vibration cylinder are provided with supporting plates for positioning the vibration cylinder; the two ends of the vibration cylinder are rotatably connected with the supporting plates by bearings; two carbon brushes are symmetrically arranged outside the vibration cylinder in the radial direction; a motor for driving the vibration cylinder to axially rotate around the vibration cylinder is provided; by the carbon brushes, the continuously rotated ultrasonic oscillator can obtain electric energy so as to avoid the situation that the ultrasonic cannot continuously work during vibration and ensure that the ultrasonic continuously works for long time to generate heat; as a welded die head keeps rotating, vibrations are generated by the welded die head in a vertical plane besides the former horizontal linear direction when the welded die head and 20kHz ultrasonic are resonated; therefore, the power energy of the ultrasonic is converted into power energy in the horizontal transverse direction and power energy in various directions in the vertical plane, so the requirement of welding of peripheries of a workpiece in the transverse direction and in the vertical plane is met.

Description

technical field [0001] The invention relates to a process for connecting two objects, in particular to an improvement of an ultrasonic welding process. Background technique [0002] The waves we encounter in our daily life can be divided into three types, namely infrasonic waves, sound waves, and ultrasonic waves. The frequency of infrasonic wave is below 20Hz; the frequency of sound wave is 20Hz~20kHz; the frequency of ultrasonic wave is above 20kHz. The infrasound and ultrasonic waves are generally inaudible to the human ear. Due to its high frequency and short wavelength, ultrasonic waves have good directionality and strong penetrating ability, so they are widely used in various fields such as medical treatment, machinery, and electronics. Ultrasound is a longitudinal wave, that is, the vibration direction of the medium particle is consistent with the propagation direction of the wave. In the process of longitudinal wave propagation, the particle motion of the medium c...

AI Technical Summary

Problems solved by technology

[0005] When the ultrasonic welding machine is performing ultrasonic welding, it can only transmit high-frequency vibration when the product fusion direction is consistent with the ultrasonic vibration direction, and generate instantaneous high temperature to weld the product, while other areas cannot achieve the expected welding effect. And in the low temperature state (minus 20 degrees), it is very prone to cracking, air leakage and other adverse phenomena

Images