Microvision servo-system of platinum aurum fiber drawing bushing nozzle arc welding robot and the method thereof

Abstract

The present invention belongs to the field of drawing platinum nozzle plate making technology, and is especially microscopic visual servo system and method for arc welding robot for making drawing platinum nozzle plate. The microscopic visual servo system consists of one visual light source, one microscopic lens, one imaging device, one video acquiring module and one video processing computer. The microscopic visual servo method realizes the precise location of the nozzle center, and the robot can adapt the heat deformation of the nozzle plate in the welding process and track the weld seam accurately. The method includes fast microscopic visual location of the nozzle center and visual servo. The fast microscopic visual location of the nozzle center is simple and fast and has high noise tolerance and capacity of providing the motion controlling system with real-time nozzle center information for precise servo location.

Description

technical field [0001] The present invention relates to the technical field of processing and manufacturing glass fiber platinum wire drawing bushings, in particular to a microscopic vision servo method for a nozzle arc welding robot of platinum wire drawing bushings. Background technique [0002] Platinum wire drawing bushing plate is the core component of glass fiber tank kiln wire drawing operation, and is the key to ensure the quality and output of tank kiln wire drawing products. Non-melting electrode and non-filler welding methods (such as tungsten arc welding, laser welding, plasma welding) are the main ways to realize the nozzle connection in the current wire drawing bushing manufacturing. The arc welding process is most commonly used. However, due to the structural characteristics of the tank kiln platinum wire drawing drain plate and the nozzle itself, the process requirements for the nozzle arc welding connection, and the thermal deformation factors in the weldin...

AI Technical Summary

Problems solved by technology

Its advantage is that it is convenient to realize the automatic production of the nozzle connection in the bushing processing, but it has the following significant disadvantages: 1) The leak nozzle directly punched and stretched is loose in material, has low mechanical strength and short service life; 2) Often in the stamping and stretching process The breakage and cracking of individual leak nozzles directly lead to the scrapping of the whole bottom plate, which is a serious waste; 3) The leak nozzles are arranged very closely on the bushing plate, and the stamping die space for a single leak nozzle is very narrow, which requires extremely high requirements for mold structure design, processing accuracy and material; 4) The mold has poor versatility, and it is difficult to meet the needs of different specifications of bushings.

More importantly, the degree of thermal deformation of the bushing is closely related to the welding process, welding path, ambient temperature, ventilation conditions, cooling methods, etc., and the dynamic change law of thermal deformation is difficult to quantify accurately. The plate nozzle welding adopts manual arc welding, and the automatic welding equipment such as welding robot cannot be used to realize the automation of the plate nozzle welding process.

[0013] The plate nozzle welding is completed by manual arc welding, which is labor-intensive, poorly consistent welding quality, high scrap rate, high skill requirements for welders, and a long training period for qualified welders.

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