Ultrasonic welding machine and its ultrasonic welding control method

Abstract

The invention discloses an ultrasonic welding machine and an ultrasonic welding control method thereof. The ultrasonic welding machine comprises a machine frame, a main controller, an ultrasonic welding mechanism, a first workpiece pressing and fixing mechanism, a first CCD image pickup mechanism, a second workpiece pressing and fixing mechanism and a second CCD image pickup mechanism. The ultrasonic welding mechanism comprises a transverse translation mechanism, a vertical lifting mechanism and an ultrasonic welding head. The first workpiece pressing and fixing mechanism comprises a first longitudinal translation mechanism and a first rotary platform. The second workpiece pressing and fixing mechanism comprises a second longitudinal translation mechanism and a second rotary platform. The ultrasonic welding machine has the beneficial effects that the ultrasonic welding mechanism can weld a workpiece on the first rotary platform and a workpiece on the second rotary platform in sequence, welding is circulated and repeated, and the ultrasonic welding machine works intermittently, so that the welding efficiency can be greatly improved. By means of the ultrasonic welding control method provided by the invention, welded positions are accurate and free of deviation, thus, defective welded products can be greatly decreased, and the welding quality also can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of ultrasonic welding equipment, in particular to an ultrasonic welding machine and an ultrasonic welding control method thereof. Background technique [0002] At this stage, in the mobile phone manufacturing process, it is usually necessary to weld the copper sheets inside the mobile phone, that is, to position the corresponding copper sheets according to the welding points of the copper sheets to be welded, and then weld the corresponding copper sheets with the ultrasonic welding head of the ultrasonic welding machine Point contact for welding operations. [0003] The traditional ultrasonic welding machine generally includes an ultrasonic welding mechanism, a welding positioning device and a CCD camera mechanism. The corresponding welding positioning device generally includes a longitudinal movement mechanism fixed on the frame platform and perpendicular to the transverse movement mechanism of the corresp...

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Problems solved by technology

[0005] Specifically, on the one hand, the ultrasonic welding machine with this structure can only perform a single operation on a single workpiece. After welding a single workpiece, it needs to be shut down to install a new workpiece to be welded, and then restarted to install the new workpiece. The corresponding welding position on the rear side of the workpiece and the corresponding welding position on the front side of the workpiece are ultrasonically welded. In this way, even if the welding operation is not coherent and does not have continuity, the operation efficiency is low and the welding process cycle is long. On the other hand, in its corresponding In the welding operation mode, after taking pictures of the welding position on the front side of the corresponding workpiece, it is necessary to rotate the corresponding rotary platform, and then perform ultrasonic welding on the welding position after taking pictures of the front side of the corresponding workpiece, and when rotating the corresponding rotary platform, the corresponding The rotation angle of the rotary platform is more or less inaccurate, so that there will be a deviation between the actual welding position on the front side of the corresponding workpiece and the welding position after the photo positioning, and then, the welding position coordinates of the corresponding ultrasonic welding head compared with the photo positioning When the corresponding workpiece is ultrasonically welded, there is a problem that the welding position is offset, so that even if there are defective welding products

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