Automatic selecting and assembling device and selecting and assembling method for main bearing bushings, connecting rod bushings and cylinder cover gaskets

Abstract

The invention discloses an automatic selecting and assembling device for main bearing bushings, connecting rod bushings and cylinder cover gaskets. The automatic selecting and assembling device comprises a selecting and assembling controller, a main bearing hole measurer and a piston protrusion quantity measuring instrument, and further comprises a main bearing bushing output device, a connectingrod bushing output device and a cylinder cover gasket output device which are sequentially arranged and electrically connected with the selecting and assembling controller separately; the main bearingbushing output device and the connecting rod bushing output device are each provided with a barcode scanner, and the barcode scanners are electrically connected with the selecting and assembling controller; the main bearing bushing output device is provided with multiple main bearing bushing output boxes, the connecting rod bushing output device is provided with multiple connecting rod bushing output boxes, and the cylinder cover gasket output device comprises multiple cylinder cover gasket output boxes; and the piston protrusion quantity measuring instrument is electrically connected with the cylinder cover gasket output device and the selecting and assembling controller. According to the automatic selecting and assembling device for the main bearing bushings, the connecting rod bushingsand the cylinder cover gaskets, the assembling time is greatly shortened, the assembling error rate is decreased, and the assembling quality of a diesel engine and the consistency and reliability ofa product batch are improved.

Description

technical field [0001] The invention relates to an automatic matching device for a main bearing bush, a connecting rod bush and a cylinder head gasket and an automatic matching method for matching the above accessories. Background technique [0002] During the assembly process of the diesel engine, according to the size of the main bearing hole, select the appropriate main bearing bush to install on the body and the main bearing cap, and play the role of bearing and lubrication. According to the size of the main journal of the crankshaft, the big end of the connecting rod and the crank pin, select the appropriate connecting rod tile to be installed on the connecting rod, which plays the role of bearing and lubrication. When the engine piston is moving, the amount of protrusion relative to the top plane of the cylinder block is called the piston protrusion amount. According to the size of the piston protrusion amount, a cylinder head gasket of an appropriate size is selected ...

AI Technical Summary

Problems solved by technology

In the current diesel engine assembly work, when assembling the main bearing bush, the operator needs to select and match according to the size of the main bearing hole and the crankshaft main journal. Matching, when assembling the engine cylinder head gasket, the operator needs to select and match according to the measured value of the engine piston protrusion. The above matching operations are complicated, error-prone, and require long-term operation to master

That is to say, it is completely dependent on manual operation, and the operator's selection mark recognition error will lead to selection errors and unqualified assembly of the engine; wrong content of the comparison selection file will lead to unqualified batch engine production; manual measurement of piston protrusions will cause large errors , it will lead to the wrong selection of cylinder head gasket, and the assembly of the engine is unqualified

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