Pulse current heated ultrasonic welding device
An ultrasonic welding and pulse current technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of large heat loss of external heating structure, easy burns for operators, large heating area, etc., to improve welding efficiency, Simple structure and high safety factor
Pending Publication Date: 2019-11-29
东莞市新玛博创超声波科技有限公司
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Problems solved by technology
There is a large hysteresis in the temperature control of the cutter body, and the heating speed is slow, and in the prior art, the fan is used to dissipate heat during the cooling process, and the cooling speed is slow; in one welding cycle, the heating time of the ultrasonic welding tool head generally takes 15 -20 seconds or so, the cooling time also takes 15-20 seconds, therefore, the welding efficiency is low
[0004] The heat loss of the external heating structure is relatively large, so the energy consumption is relatively high
[0005] In addition, the structure of external heating, because the heat source is exposed outside, the heating area is large, and it is easy to burn the operator, so it is necessary to improve
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[0028] The following are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.
[0029] An ultrasonic welding device with pulse current heating, Figures 1 to 4 As shown, it includes an ultrasonic generator, an ultrasonic horn, and an ultrasonic tool head. The ultrasonic tool head includes at least one set of ultrasonic conductive groups, and each group of ultrasonic conductive groups includes two metal cylinders 11. The same group of ultrasonic conductive groups Two metal cylinders 11, ultrasonic welding cutter body 12 and pulse power supply are connected in series to form a pulse current loop; each metal cylinder 11 is relatively fixed and forms an ultrasonic tool head main body 1, and a The insulating gasket 2, the ultrasonic generator is electrically connected to the ultrasonic horn, the top of the ultrasonic tool head main body 1 is equipped with a connecting rod 14, the connecting rod 14 is connecte...
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The invention discloses a pulse current heated ultrasonic welding device. The pulse current heated ultrasonic welding device comprises an ultrasonic tool head. The ultrasonic tool head comprises an ultrasonic tool head main body assembled by two or more metal cylinders. One or more ultrasonic welding cutter bodies are installed in the lower portion of the ultrasonic tool head main body. The ultrasonic welding cutter bodies are in electric connection with the two corresponding metal cylinders. Each metal cylinder is provided with a power-connecting portion for connecting to a pulse power source. According to the pulse current heated ultrasonic welding device, a circuit is formed through the metal cylinders and the cutter bodies in the ultrasonic wave tool head; the structure is simple; thecost is low; the cutter bodies give off heat by utilizing pulse current to pass cutter bodies with relatively bigger resistance values, while the other portions of the ultrasonic wave tool head do notgive off heat basically; the temperature rise speed is high; the cooling speed is high; welding efficiency is improved; and energy consumption is lowered.
Description
technical field [0001] The invention relates to the technical field of ultrasonic welding tool heads, in particular to an ultrasonic welding device with pulse current heating. Background technique [0002] Sound waves with a frequency greater than 20 kHz are called ultrasound. The vibration of ultrasonic waves in the liquid solder produces cavitation in the liquid solder, and the shock wave formed after the collapse of the cavitation bubble can destroy the oxide film on the surface of the base metal, thereby realizing the wet bonding of the solder and the base metal , Ultrasonic assisted brazing. Ultrasonic assisted brazing can achieve brazing under non-vacuum conditions without using flux, and has been widely used in the connection of various structural parts and electronic components. [0003] During the welding process, ultrasonic time and welding temperature are the main factors affecting the joint structure, including structural strength and electrical properties. At...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23K20/10B23K20/26
CPCB23K20/10B23K20/26
Inventor 赖志伟
Owner 东莞市新玛博创超声波科技有限公司