Ultrasonic-assisted high-frequency induction brazing device for electric contact system

Abstract

The invention provides an electrical contact system ultrasonic-assisted high-frequency induction brazing device. A body of the device adopts a six-index cam divider for driving, six assembling and machining stations are arranged on the periphery of a cam divider workbench in sequence, and a same positioning mould is arranged on each assembling and machining station. The electrical contact system ultrasonic-assisted high-frequency induction brazing device specifically comprises a contact bridge feeding assembly, a soldering paste dripping assembly, a contact feeding assembly, a high-frequency induction brazing assembly, a CCD industrial camera assembly, a discharging assembly, an electric chuck assembly 7 and a cam divider assembly. According to the device, through ingenious and reasonablestructural design, a high-frequency induction heat source and ultrasonic vibration double compound energy field is integrated in a compact space; through process procedure design, the welding positions are optimized before, during and after welding correspondingly; and the automation degree is high, and both the machining efficiency and the brazing quality are taken into consideration.

Description

technical field [0001] The invention belongs to the field of high-frequency induction welding, and in particular relates to an ultrasonic-assisted high-frequency induction brazing device for an electric contact system. Background technique [0002] With the continuous development of modern industrial technology, users have higher and higher requirements for the performance of low-voltage electrical products, such as higher rated current and more reliable service requirements, that is, the quality of electrical contacts in electrical products. The scientificity and stability of the contact brazing process put forward higher requirements. [0003] As an important supporting component of low-voltage power distribution network and electromechanical products, low-voltage electrical contacts are responsible for the tasks of connecting, segmenting, diverting and isolating current. It is easy to oxidize and corrode in the atmospheric environment; on the other hand, the main and aux...

AI Technical Summary

Problems solved by technology

At present, the welding of electrical contacts is mainly based on resistance brazing, but due to the extremely short time of resistance brazing, under the action of pressure, the liquid solder flows from the center to both ends, and the thickness of the formed brazing seam is uneven, which leads to The resistance of different regions is different. Under the action of the segmental arc, the contacts are easily ablated or fall off, which greatly reduces the performance and life of the electrical contacts.

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