Automotive seat back manufacturers technological changes

Car seat back sheet metal stamping connection structure of the manufacturing method. The utility model discloses a sheet metal part stamping connection structure of an automobile seat back plate, which comprises a sheet metal part which is formed with at least one first stamping area; a back plate which is correspondingly arranged on the back plate The first punched area is formed with a second punched area, and the first punched area and the second punched area are combined to form a punched connection structure. The sheet metal stamping connection structure of the automobile seat back plate of the utility model applies the stamped connection mode in the automobile seat structure and presses the first stamping area of the sheet metal piece and the second stamping area of the backboard in a punching manner Compared with the prior art spot welding process, the effect of single-piece sheet metal electrophoresis on welding can be effectively avoided and the resultant Security Risk. And sheet metal surface treatment after a single piece, without grinding, reducing the grinding caused by the high labor costs and quality control costs.
     Currently common car seat back sheet metal parts are usually connected by wire - wire, wire - board, board - wire - board and board - board connection structure. For the wire - wire and wire - plate connection structure, usually using arc welding connection; for the plate - wire - board and board - board connection structure, usually using spot welding or laser welding connection.
      With the current cost pressure on the car seat is more and more large, low-grade passenger car backrest more and more canceled all the electrophoresis process. Taking into account the appearance of the entire chair, usually the back of the exposed part of the surface electrophoresis and other surface treatment. Such as children's safety seats (T0P-TETHER) have exposed parts in the plate - wire - board and board - board connection structure, the usual practice is to do a single child seat safety parts such as electrophoresis surface treatment, and then by welding The craft connects the child safety seat to the car seat back. However, due to the welding process, child safety seat welds can not be surface-coated. But if you do not deal with the surface coating, direct welding can cause spot welding or laser welding ineffective or failure, resulting in welding wear, Weld and so on defects, resulting in security risk.
     In response to the above problems, if you want to ensure the welding quality, you need to weld before the welding area pre-treatment. There are currently two ways of pretreatment: partial electrophoresis of child safety seats or artificial sanding of the welding area. Both of these approaches, however, result in a significant increase in process costs, and due to the poor process control capabilities of both approaches, certain welding and appearance issues remain. If the welding area is not in place before the pre-treatment, it may produce unnecessary appearance of bare, and the risk of poor welding with a low probability.