Research And Development Of Carburetor Automated Assembly Production Line

A lot of internal combustion engine is inseparable from the carburetor.Carburetor belongs to the labor-intensive products, its value is not high. Rising labor costs have resulted in compression of the profits of carburetor. At present, the carburetor assembly is mainly based on manual and semi-automatic assembly, this way of processing the production efficiency is low, the product quality is not stable.Through the enterprise research, on the basis of in-depth analysis of carburetor assembly process, this topic developed a carburetor automatic assembly line.By analysis the carburetor assembly process and determining the assembly line overall design thought, this article formulated the carburetor automated assembly production line overall mechanical structure design scheme and control scheme.Firstly, the mechanical structure parts, combined with the virtual 3D model creation and modular design method, On the SolidWorks software platform,mechanical structure design and simulation analysis. This article focus on detailed analysis and design on the assembly line positioning fixture, Separating and feeding mechanism, parts assembly mechanism, handling mechanism and dust removal mechanism. Among them, according to the characteristics of the needle valve seat assembly process, This article design the spring type movable fixture. According to the difference of the center of gravity, shape and structure of the part, the special Separating and the feeding mechanism are designed to realize the separation and feeding of the irregular or under the rule parts. Design swivel mechanism to achieve the carburetor not off the assembly line to complete the assembly. Because of carburetor complex shape, This article design dust removal device which used for dedusting carburetor and tooling.Secondly, the design of control system includes hardware design and software design. This article also compares control scheme, selects of PLC as the controller system. Among them, the design of hardware mainly includes the control system circuit design, input and output module design, etc. The design of software bases onFP- Win GR platform, adapts the sequential control design method to develop program.Once again, In the MCGS software environment. This article develops the human-computer interaction system, prepares the database configuration variables and writes the PC control interface to make the assembly line operation more intuitive.Finally, through the assembly, commissioning and trial production prototype, the assembly line has been put into use, the product yield rate can reach 98% and the average assembly efficiency can be up to 6 seconds each, which improve the efficiency of product assembly and assembly quality.