Method of processing fluid distribution housing

Abstract

The invention discloses a method for processing a fluid distribution housing. The method comprises the steps of turning, finish milling and finish turning. The turning step comprises the following substeps that 1, the axial end face of a cylindrical blank with the length being 130+ / -0.5 and the diameter being 220+ / -0.5 is turned flat; 2, the outer circle of the blank is turned; 3, an auxiliary hole that has the diameter of 50 and the depth of 48 is drilled in the axial direction, an inner hole is bored, and an inner spherical surface is turned; 4, turning around is performed, a tool body and the inner spherical surface are assembled, the outer circle is clamped from the outer diameter position with the diameter being greater than or equal to 2-16 and corrected, and an end surface is turnedflat; and 5, an outer spherical surface is turned to keep the wall thickness size ta 6+ / -0.1 and the total height at 126, and then flash burrs are removed. The finish milling step comprises the following substeps that the outer circle with the diameter of 216 is clamped and supported by the tool body, 366 holes with the diameter of 9.5+ / -0.2are drilled, and then 3 auxiliary holes with the diameter of 10+ / -0.2 are drilled. The finish turning step comprises the following substeps that 1, the outer circle with the diameter of 216 is clamped, and the outer circle, the end face and the 3 auxiliaryholes with the diameter of 10+ / -0.1 serve as benchmarks to correct a workpiece; and 2, reserved process chucks with the size of 20 for clamping are removed by turning.

Description

technical field [0001] The invention relates to a processing method for a fluid distribution cover, and belongs to the technical field of processing methods for shells. Background technique [0002] Because nuclear power plants are more efficient and clean than traditional thermal power plants, nuclear power plants have received more and more attention from the country and the people in recent years, but the safety of nuclear power plants is even more important; voltage regulators are commonly used in nuclear power plants One of the most important equipment, it has the function of regulating pressure, its performance has a very important impact on the safety of nuclear power plants, and the fluid distribution cover is an important part of the voltage stabilizer, and its shape is spherical, which is not easy to clamp , and it is a thin-walled shell with a large number of holes to be processed. It is easy to deform during processing with traditional clamping methods, resulting...

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Problems solved by technology

[0002] Because nuclear power plants are more efficient and clean than traditional thermal power plants, nuclear power plants have received more and more attention from the country and the people in recent years, but the safety of nuclear power plants is even more important; voltage regulators are commonly used in nuclear power plants One of the most important equipment, it has the function of regulating pressure, its performance has a very important impact on the safety of nuclear power plants, and the fluid distribution cover is an important part of the voltage stabilizer, and its shape is spherical, which is not easy to clamp , and it is a thin-walled shell with a large number of holes to be processed. It is easy to deform during processing with traditional clamping methods, resulting in unqualified shape and size.

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