Positioning device for laser cladding processing of inner surface of ball valve ball body

Abstract

The invention discloses a positioning device for laser cladding processing of the inner surface of a ball valve ball body. The positioning device comprises a supporting table, the ball valve ball body, a ball valve ball body supporting mechanism and a ball valve ball body driving mechanism. The ball valve ball body supporting mechanism comprises at least three supporting rods which are uniformly distributed on the table surface of the supporting table with the included angle between every two supporting rods being 120 degrees. The ball valve ball body is arranged at the upper ends of the supporting rods in a movable supported mode. The ball valve ball body driving mechanism comprises a driving wheel, a driving shaft fixed to the driving wheel and a rotation element arranged on the supporting table in a rotary mode. A first motor is fixedly arranged on the rotation element and in driving connection with the driving shaft. A second motor is fixedly arranged on the supporting table. A rotation element driving gear sharing a rotation central line with the rotation element is fixedly arranged on the rotation element. The second motor is in driven connection with the rotation element driving gear. The positioning device has the advantages that the structural design is reasonable, and laser can be transmitted inside conveniently and flexibly to achieve laser cladding processing.

Description

technical field [0001] The invention relates to a laser processing equipment for a ball valve, in particular to a laser cladding processing and positioning device for the inner surface of a ball valve ball. Background technique [0002] The ball valve is a common flow control valve, and the ball is the core control part of the ball valve. In order to ensure the service life of the ball valve ball and prevent the ball from being corroded by the medium, for the ball valve, not only the outer surface of the ball valve ball needs to be provided with an anti-corrosion coating, but the inner surface of the ball valve ball also needs to be provided with an anti-corrosion coating because it acts as a medium channel. In order to improve its anti-corrosion performance and service life. [0003] The existing processing methods for providing an anti-corrosion coating on the inner surface of the sphere of the ball valve mainly include plasma spraying and anti-corrosion paint coating. Th...

AI Technical Summary

Problems solved by technology

However, since the inner surface of the ball valve is located in the central area of ​​the ball, it is very difficult to uniformly incident the laser on the inner surface of the ball valve, the processing efficiency is low, and the incidence of the laser cannot be adjusted flexibly, which causes the inner surface of the ball to heat up under the action of the laser Unevenness, which affects the bonding strength of the coating

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