Intelligent and compact type welding line visual tracking system

Abstract

The invention discloses an intelligent and compact type welding line visual tracking system which comprises a shell, a laser device, a camera, a light path adjusting module, drive device installing fixing parts and a control system. The camera, the light path adjusting module and the laser device are connected with the shell through the installing fixing parts. The installing fixing parts are installed in the shell. The light path adjusting module is used for adjusting a light path of a laser beam emitted by the laser device. A drive device is detachably connected with the outer portion of the shell. The control system is electrically connected with the camera, the light path adjusting module, the laser device and the drive device. Compared with the prior art, the intelligent and compact type welding line visual tracking system has the beneficial effects that high-precision and real-time positioning of the position of a welding line is achieved through the system, and the irradiation position of the laser beam on a to-be-welded workpiece can be automatically adjusted by rotating a reflecting lens; a fast focusing function can be achieved through the camera on the system, and the relative positions of the system and the to-be-welded workpiece can be automatically adjusted through the system; and the system is compact in structure, convenient to install and suitable for various working conditions.

Description

technical field [0001] The invention relates to the technical field of visual tracking, in particular to an intelligent and compact welding seam visual tracking system. Background technique [0002] With the development of automatic welding, the requirements for welding precision are getting higher and higher, and the requirements for its application range are becoming wider and wider. In the process of improving the welding precision and expanding the application range, the seam tracking system plays a pivotal role. There are various ways to realize the seam tracking. The seam visual tracking has become the current research field because of its high precision and large detection range. A hot spot, highly integrated weld seam visual tracking system is also the future development direction. [0003] At present, the existing integrated welding vision tracking system has corresponding disadvantages. First, the optical axis of the camera and the centerline of the laser are inst...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing integrated welding vision tracking system has corresponding disadvantages. First, the optical axis of the camera and the center line of the laser are installed in a fixed way at a certain angle, which takes up a lot of space.

Secondly, when there is a certain deviation between the actual distance between the seam tracking module and the workpiece to be welded and the theoretical value, the camera will produce results such as inaccurate focus and blurred images. Furthermore, the actual position of the line structured light in the image will deviate from the theoretical value. The position set theoretically and the image quality is poor, and the error of the processing result is relatively large, which leads to a certain error in the welding seam tracking result in the later stage

In the early stage of weld seam tracking, because the weld seam vision tracking module cannot automatically respond according to the actual object distance, that is, the weld seam vision tracking module cannot automatically adjust the focal length according to the actual distance between itself and the workpiece to be welded. The initial position in the field, so the welding seam vision tracking module must be initialized and adjusted manually with the help of corresponding equipment. In this way, it is more dependent on the work of the workers, and at the same time reduces the intelligence of the equipment.

[0004] On the other hand, since the camera of the existing weld seam visual tracking module works in a fixed-focus mode, it cannot automatically adjust the relative spatial position between the weld seam tracking module and the workpiece to be welded according to the shape of the workpiece to be welded with a complex structure. When the focal welding visual tracking module is applied to the detection process of the workpiece to be welded with a complex structure, when there is structural interference between the weld seam tracking module and the structure of the workpiece to be welded, the existing fixed-focus welding visual tracking module is helpless , its application is limited

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