Sealing ring machining method

Abstract

The invention discloses relates to the field of machining, in particular to a sealing ring machining method. The method includes the following steps that a lathe supporting clamp is used for clamping blanks, rough machining and finish machining are performed on the front side of a sealing ring through an end face tool till the required size is achieved; rough machining and finish machining are performed on the outer circle of the sealing ring through an outer circle tool, and chamfering is performed; a lathe holding clamp is used for holding the outer circle of the sealing ring, and the inner circle of the sealing ring is machined through an inner circle tool; rough machining and finish machining are performed on the back side of the sealing ring through the end face tool till the required size is achieved, and chamfering is performed through a chamfering tool; a workpiece is clamped through a soft claw, and rough machining and finish machining are performed on the back side of the sealing ring; the workpiece is disassembled, an inner hole of the workpiece is supported through the lathe supporting clamp, and the outer circle of the sealing ring is turned through the outer circle tool; semi-finish machining and finish machining are performed on the front side of the sealing ring through the end face tool till the required thickness size is achieved; the workpiece is installed on a drilling machine, and a sealing ring front side hole is drilled; and a sealing ring counter bore is milled. By means of the sealing ring machining method, the machining process is simple, machining precision can be guaranteed, production efficiency is improved, and production cost is reduced.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing method for a sealing ring. Background technique [0002] Metal sealing ring is a very common seal in industrial production. Its sealing function can prevent the leakage of water, oil, gas and other media, and it is widely used in machinery, pipelines and other equipment. Mechanical seals, also known as face seals, are used to seal rotating shafts of pumps, kettles, compressors, hydraulic transmissions and other similar equipment. The general sealing device includes a shell, a sealing ring and an end cover, which form a plane friction pair, relying on the pressure of the elastic member and the sealing medium to generate an appropriate pressing force on the contact surface (end face), so that the two end faces fit closely to achieve sealing effect. Large metal sealing rings for compressors, this part is produced in small batches, its structure is not complicated,...

AI Technical Summary

Problems solved by technology

Large metal sealing rings for compressors, this part is produced in small batches, its structure is not complicated, and the dimensional accuracy is the conventional requirement, there are only two points that are difficult to guarantee: (1) The outer circle is the reference, and the sealing ring is positive and negative. The circular runout of each end face is 0.03mm; (2) within the range of 365-410mm in the front diameter of the sealing ring, the roughness along the circumferential direction is less than 0.8um. The effect is not ideal, affecting the normal operation of the compressor