Machining method of floating disc

Abstract

The invention discloses a machining method of a floating disc independently produced domestically. The method comprises following steps: heat treatment; A end face allowance and inner hole allowance of the floating disc are removed; B end face allowance and outer circle allowance of the floating disc are removed; the A end face and the outer circle are subject to finish turning, and a process lug is turned; the B end face and an inner hole are subject to finish turning; two end faces are turned over and ground; two end faces are ground; the end faces serve as benchmark ground holes; the outer circle is ground; according to the drawing, a chip groove center line at the positions of oil grooves in the two end faces is drawn out; the machining center is adopted to mill the oil groove in the A end face, and a first positioning pin hole is machined; the first positioning pin hole is used for positioning, the oil groove in the B end face and an inner hole oil groove are numerically milled, and a second positioning pin hole is machined; a chip removal groove is cut; two end faces are subject to accurate grinding; two end faces are ground; the first positioning pin hole, the second positioning pin hole and a process lug are used for positioning, in cooperation with a oil wedge grinding tool, and two end face oil wedge faces are ground; the outer circle is turned to the final size, and the process lug is removed; and burr removal is achieved by a bench worker.

Description

technical field [0001] The invention relates to the field of sliding bearings, in particular to a processing method for a floating disc. Background technique [0002] Structurally speaking, the floating disc (that is, the sliding bearing of the turbocharger) belongs to the bearing parts, and the material of the parts is 31CrMoV9, which is one of the key components of the turbocharger. During the operation of the whole machine, the floating disc uses its own end oil wedge surface to generate an oil film, which plays a role in cooling and lubricating the annular thrust bearing and the pressure end bearing. The quality of the floating disc, the core of which is the quality of the oil wedge surface, directly affects the efficiency of the turbocharger, fuel consumption, reliability of operation, and even causes burn-in and other phenomena. According to the analysis of the processing drawings, the most influential factors are the out-of-tolerance of the part shape and position, t...

AI Technical Summary

Problems solved by technology

The traditional production mode of such products is mainly imported from abroad. At present, there are many gaps in the experience of independent production, which seriously restricts the development of my country's shipbuilding industry.

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