Laser alloying fixture for valve-spool-end-cap working face

Abstract

The invention discloses a laser alloying fixture for a valve-spool-end-cap working face and relates to the field of machining. The laser alloying fixture comprises a fixture body, a section of straight slot is formed in the middle of the fixture body, a boss is arranged at one end of the fixture body, a blind hole is formed in the end face of the boss, a mandrel is mounted in the blind hole, a push bar is arranged on the mandrel and penetrates the straight slot in the fixture body, the upper end and the lower end of the push bar are connected through bolts, the push bar is capable of sliding in the straight slot of the fixture body, the mandrel is connected with a handle through a bearing, and the handle is connected with the fixture body through a screw. The laser alloying fixture is simple in structure, reliable in positioning, convenient to mount and demount and long in service life, certain universality is achieved, and acceptability and machining efficiency during laser alloying of the valve-spool-end-cap working face can be effectively improved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a laser alloying fixture for the working face of a valve core end cap. Background technique [0002] The automatic flow balance valve is a working condition balance valve with automatic constant flow, which can effectively solve the problem of dynamic hydraulic imbalance and automatically ensure the safe operation of the pipeline network. It is widely used in the pipeline network of construction, fire protection, HVAC, petroleum and chemical industries . Among them, the end cap of the valve core is the core component of the automatic flow balance valve. During operation, the end cap moves up and down to keep the dynamic flow constant. The constant friction between the end cap of the valve core and the valve body is very easy to be worn or corroded by the fluid. In severe cases, it will even affect the normal operation of the automatic flow balance valve. In order to improve...

AI Technical Summary

Problems solved by technology

In this way, during the alloying process, although the thermal effect on the substrate is very small, the overall size of the valve core end cap is small, especially its wall thickness is only 1 mm, and the resulting thermal deformation and rapid cooling of the valve core end cap The deformation caused by this will affect the accuracy and quality of the laser alloying process on the working surface of the valve core end cap, resulting in the appearance of a large number of unqualified parts

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