Piston and connection rod sub-assembly tray

Abstract

The invention provides a piston and connection rod sub-assembly tray comprising a base, connection rod locating blocks and piston skirt portion locating plates. The connection rod locating blocks areinstalled at one end of the base. The piston rod skirt portion locating plates are installed at the other end of the base. Each connection rod locating block is provided with a connection rod containing groove. Each piston skirt portion locating plate is provided with a piston skirt containing groove corresponding to the connection rod containing groove in position. The base is further provided with connection rod cover containing grooves. Each connection rod cover containing groove is arranged on one side of the corresponding connection rod containing groove. A connection rod body, a piston skirt portion and other cast portions are used for locating, so that the clean degree of a machining portion is guaranteed, and scratches are prevented; and besides, the connection rod cover containinggrooves for containing connection rod covers are arranged, and when a worker detaches connection rod covers, the connection rod covers can be directly placed in the containing grooves.

Description

technical field [0001] The invention relates to the field of engine manufacturing, in particular to a piston connecting rod subpackage tray. Background technique [0002] The piston subassembly line is the subassembly loop of the engine assembly line, responsible for the subassembly of pistons, connecting rods, piston pins, piston pin retaining rings, and connecting rod bearing bushes. For transfer between stations, the packaging line is designed to use special pallets. [0003] At present, in domestic mainstream engine factories, most of the piston and connecting rod trays are of simple nylon structure. During operation, the workpiece is placed flat on the pallet, and the connecting rod head / piston head is used for positioning. Employees at different stations take the workpiece from the pallet, put it back on the pallet after the work is completed, and push it to the next station , such pallets have the following defects: [0004] The pallet is heavy, and it is difficult...

AI Technical Summary

Problems solved by technology

[0004] The pallet is heavy, and it is difficult for employees to take it, which does not meet the requirements of ergonomics;

[0005] After the connecting rod cover is disassembled at the work station, the employee manually installs it on the connecting rod, and unscrews it again after connecting the main line, resulting in repeated work;

[0006] The lubricating oil used to lubricate the piston ring pollutes the roller table and the ground, which is not conducive to site cleaning and maintenance;

[0007] Using the machined part of the inner cavity of the big end of the connecting rod and the head of the piston as the positioning will not only affect the cleanliness, but may also cause scratches on the workpiece;

[0008] The nylon part directly rubs against the roller table, and the tray wears seriously after long-term use

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