Intelligent laser cladding head with automatic temperature and powder feeding amount debugging function

Abstract

The invention discloses an intelligent laser cladding head with the automatic temperature and powder feeding amount debugging function. The laser cladding head comprises a base sleeve, a focus lens, a focus lens sleeve, a nozzle core, a cold water sleeve, a protection lens, a simple body and other basic components, and a contact type temperature sensor and an ultrasonic powder density detection instrument are further designed; in order to achieve the functions, except for the intelligent laser cladding head, a laser device, a cold water unit, a powder feeding device, a laser device and a control box are matched with the characteristics internally so that the functions are achieved, and a real-time effective closed-loop system is formed; under the normal work state of the laser device, the intelligent laser cladding head detects the real-time temperature of a laser cladding head through the contact type temperature sensor, data are transmitted to a computer controller, the computer controller carries out comparison according to rated value of the set program, judgment is carried out, according to the judgment result, a refrigeration command is issued to the cold water unit in real time, and the cold water unit regulates the refrigeration frequency according to the command; as well, the intelligent laser cladding head detects the real-time powder feeding density of the laser cladding head through a solid powder detection system, the data are transmitted to the computer controller, the computer controller carries out calculation according to the formula of the set program, the data are converted into the powder feeding amount, the data and the set value are compared, judgment is made, according to the judgment result, a powder feeding adjusting instruction is issued to the powder feeding device in real time, the set value of the powder feeding device is changed through the computer controller, and therefore the powder feeding amount is changed through the powder feeding device, and the optimal powder feeding effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing and surface modification, and specifically relates to an intelligent laser cladding head whose temperature and powder feeding amount can be automatically adjusted and its realization method. Background technique [0002] Laser cladding technology is a new type of surface modification technology, which refers to adding metal powder on the surface of the substrate, heating and melting the two under the action of the laser beam, and cooling to form a surface coating that is metallurgically combined with the base material after the beam is removed. A surface strengthening method that significantly improves the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the substrate surface. [0003] At present, the laser cladding head has a good coaxial powder feeding function and energy transmission function, but it cannot detect and contr...

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Problems solved by technology

[0003] At present, the laser cladding head has a good coaxial powder feeding function and energy transmission function, but it cannot detect and control the real-time temperature and powder feeding volume well, which affects the surface quality of the substrate and even causes damage to the laser cladding head.

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