Oil nozzle couple part center hole scrubbing device and method for common rail injector

Abstract

The invention discloses an oil nozzle couple part center hole scrubbing device and an oil nozzle couple part center hole scrubbing method for a common rail injector. The oil nozzle couple part centerhole scrubbing method for the common rail injector includes: sequentially clamping washing hairbrushes on chucks according the quantity of the chucks of a gear assembly; enabling oil nozzle couple parts to be scrubbed to pass through a first installing hole of a press plate one by one and placing the oil nozzle couple parts in a second installing hole of a first positioning plate, and enabling washing liquid to enter center holes of the oil nozzle couple parts through a third installing hole in a second positioning plate; enabling the press plate to apply pressure to the oil nozzle couple parts after being placed so as to compress and fix the oil nozzle couple parts; and rotating the washing hairbrushes in the center holes of the oil nozzle couple parts for performing rotary scrubbing, driving an upper clamp unit so as to drive the oil nozzle couple parts to move up and down in the rotary scrubbing process, and moving the washing hairbrushes up and down relatively to the interiors of the center holes of the oil nozzle couple parts for performing up-down scrubbing. The oil nozzle couple part center hole scrubbing device and the oil nozzle couple part center hole scrubbing method forthe common rail injector effectively scrub abrasives and slight burrs in the center holes of the oil nozzle couple parts, greatly improve scrubbing quality of the center holes of the oil nozzle couple parts, guarantee reliability of an oil sprayer assembly, and furthermore improve scrubbing efficiency, and reduce production cost.

Description

technical field [0001] The invention relates to a brushing device and a method for scrubbing the center hole of a nozzle coupler for a common rail fuel injector, belonging to the technical field of auto parts. Background technique [0002] The nozzle assembly is a key precision component on the electronically controlled common rail injector of the diesel engine fuel system. The quality of the nozzle assembly directly affects the working quality of the diesel engine. Such as oil leakage or poor atomization will cause black smoke, carbon deposits and performance deterioration of the engine, unstable engine operation, and even ablation of the piston top, cylinder scuffing, early wear of the crankshaft, and burning of tiles. As the core component of the fuel injector assembly, the nozzle assembly is particularly important in its quality requirements. Therefore, how to improve the quality of each process of the oil nozzle assembly has always been a research topic that manufactur...

AI Technical Summary

Problems solved by technology

This method of brushing the center hole of the nozzle pair is extremely inefficient. The most important thing is that this method of brushing often results in incomplete brushing or incomplete knocking, resulting in dirt or tiny burrs in the center hole, which is not only It directly affects the cleanliness of the nozzle parts. If there are small burrs in the center hole that have not been brushed off, after the nozzle parts are installed, the small burrs will be washed off under the impact of high temperature and high pressure during the working process, and the consequences will be unimaginable.

If the burr blocks the nozzle hole, it will affect the spray quality of the nozzle assembly, resulting in poor atomization of the nozzle assembly, which will cause black smoke, carbon deposits and performance deterioration of the engine, unstable engine operation, and even ablation of the piston top and cylinder scuffing. And the early wear and tear of the crankshaft, burning tiles and other consequences

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