Research On SPS's Materials Directly To Line Side In "T" Auto Factory Assembly Shop

SPS(Set Parts Supply)is to distribute the materials for a single car according to the vehicl assembly line's sequence,and through reasonable designand arrangement,the materialsand the car are Synchronized on-line.It divides the traditional vehicle assembly shop's process into two parts:(1)In SPS area,there is material picking workers to select parts,and the selected parts isconsistent with the order of the cars on-line;(2)In assembly line area,assembly workers to get the parts of the current cardirectlyfrom the material box for assembly.“T” auto factory interior line from the factory began to use SPS logistics model,and the use of SPS material trolley distribution.The utility model is characterized in that the single material in the SPS area is concentrated on 2 material trolley(one front and one rear),and when the vehicle is on the line,the material trolley is synchronized with the vehicle.The production line from the trolley assembly personnel selected their material assembly.Under the SPS logistics mode of material material trolley,the assembly workshop of T automobile factory has greatly reduced the line side inventory,and effectively reduced the assembly error rate.But it also brings some problems: the increase of SPS also increased a large number of material distribution links,material SPS of multi station at the same time,repeatedly chosen,integrated operations(85% of the material needed 3 times)will ultimately be concentrated to the material material sub trolley,workload and work difficult;assembly production line to take the material from the material in the car,causing the assembly personnel from the operating point to frequent mobile material sub station workshop.In view of the above problems,this paper puts forward the method of "SPS material distribution",all the materials are not directly integrated on the line.Taking T automobile factory production of C models in the assembly workshop interior line and SPS area as the research object,through field investigation,to tease out the detailed work flow of SPS material selection,integration,distribution,production line material,and record the operation time of different links.Based on this foundation,using the method of work flow analysis and time analysis,the working time of the whole process of picking and distribution of SPS material is divided into the necessary operation time and unnecessary operation time.And the use of ECRS method to classify and streamline the operation process,the material according to the size of the material is divided into small and large material,make the material distribution scheme for two different types of material,thereby reducing unnecessary operation time of material delivery process.Finally,through the actual data collected after the implementation of the program,the effect of the application of the optimization program is tested to verify its effectiveness.