Laser-assisted calibration process for diesel engine assembly

Abstract

The invention discloses a laser-assisted calibration process for diesel engine assembly. The process comprises the following steps of 1) processing a guide sleeve, and ensuring that the inner diameter of the guide sleeve is matched with a laser emitter, and the outer diameter of the guide sleeve is matched with the inner diameter of an oil nozzle; 2) mounting the laser emitter on the guide sleeve, and connecting the guide sleeve and the laser emitter with the oil nozzle; 3) turning on the laser emitter, simulating an oil column emitted by the oil nozzle by a laser emitted by the laser emitter, and assisting debugging personnel to perform calibration and debugging by observing the condition of the laser emitted by the laser emitter; 4) adjusting the angle and direction of the oil nozzle, and ensuring that the laser on the oil nozzle directly irradiates into a piston cooling hole; 5) after debugging is completed, pulling out the guide sleeve and the laser emitter on the oil nozzle. The process is ingenious in design, the calibration process is simplified, the calibration time is shortened, and the calibration quality is improved.

Description

technical field [0001] The present invention relates to a laser assisted alignment process for diesel engine assembly. Background technique [0002] At present, in the assembly process of the existing diesel engine, it is necessary to manually calibrate the relationship between the oil injection hole and the position of the piston. When the diesel engine is running, the cooling oil is sprayed out from the oil injection hole to lubricate and cool the piston. The oil sprayed from the cooling nozzle needs to be sprayed into the piston cooling hole at a distance of 300 meters. The position and angle of the oil hole determine the accuracy of the oil beam injection, which affects the amount of cooling oil entering the piston. The existing The assembly method is manually calibrated by personnel. During assembly, the oil holes at both ends are generally seen with eyes or tooling is used. The calibration is difficult and the stability is poor. Due to the compact space, it is inconven...

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Problems solved by technology

[0002] At present, in the assembly process of the existing diesel engine, it is necessary to manually calibrate the relationship between the oil injection hole and the position of the piston. When the diesel engine is running, the cooling oil is sprayed out from the oil injection hole to lubricate and cool the piston. The oil sprayed from the cooling nozzle needs to be sprayed into the piston cooling hole at a distance of 300 meters. The position and angle of the oil hole determine the accuracy of the oil beam injection, which affects the amount of cooling oil entering the piston. The existing The assembly method is manually calibrated by personnel. Generally, the eyes are used to see or the oil holes at both ends are connected with tooling during assembly. The calibration is difficult and the stability is poor, and due to the compact space, it is inconvenient to install with tooling

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