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2023

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01

Manufacturing method of automobile door frame structure


  The car door frame includes an upper cross bar, a center pillar, a rearview mirror bracket, a glass lifting guide rail and a reinforced connecting plate. The rearview mirror bracket is arranged at the left end of the upper cross bar, and the right side of the upper rod is connected to the upper end of the center pillar by welding, and the reinforced connecting plate Connected between the rearview mirror bracket and the center pillar, the glass lifting guide rail is arranged longitudinally on the door frame, there is a bending and welding connection section on one side of the upper left cross bar, and the arc welding part and the guide rail are welded on the top of the rearview mirror bracket Part, the arc welding part is welded to the interior part of the car. The welding connection section is bent, and the welded part of the guide rail is welded to the upper side of the glass lifting guide rail. The utility model has the advantages of reasonable structural arrangement, and the rearview mirror bracket has arc surface welding parts and guide rail welt welding parts, which are respectively welded and connected with the upper rod and the glass lifting guide rail. After the door frame and the counterpart are installed, the airtightness is strong, so let's learn about the manufacturing method of the car door frame structure together!

car door frame

  The car door frame structure includes a front door frame and a rear door frame. The front door frame assembly is generally composed of an upper cross bar, a rearview mirror bracket, a glass lift guide rail, a center pillar and a reinforced connecting plate. The main disadvantages of the existing front door frame assembly are: the upper strip, the center pillar, the rearview mirror bracket and the reinforcement connecting plate are improperly installed due to unreasonable welding connection positions, the overall strength is weak, and the sealing performance is poor. Seriously affect the vehicle in front. The door frame assembly is in normal use. The technical problem to be solved by the utility model is to provide a car front door frame structure with simple structure, stable and reliable after welding, and good overall strength in view of the current state of the prior art.

  The technical solution adopted by the car door frame is: a car front door frame structure, including an upper pole, a center column, a rearview mirror support, a glass lifting guide rail and a strengthening connecting plate, and the rearview mirror support is arranged at the left end. The upper cross bar, the right side of the upper cross bar is connected to the upper end of the center pillar by welding, and the reinforcing connecting plate is connected between the rearview mirror bracket and the center pillar. A glass lifting guide rail longitudinally arranged on the door frame, characterized in that there is a bending welding connection section on the left side of the upper rod, and the rearview mirror bracket has an arc welding part and a guide rail wetting welding part. The arc welding part is welded on the inner side of the bending welding connection section, and the upper part of the guide rail is welded on the upper side of the glass lifting guide rail.

  The measures taken to optimize the above scheme include:

  In the automobile door frame structure, the rearview mirror bracket also has a hemming buckle part, and the hemming buckle part is folded and surrounded by the lower end of the bending and welding connection section. A locking hole is provided on the locking piece, and in the structure of the front door frame of the automobile, a guide rail bracket is welded at the lower end of the glass lifting guide rail. Compared with the prior art, the utility model has the advantages of reasonable structural arrangement, and the rearview mirror bracket has arc surface welding parts and guide rail welt welding parts, which are welded and connected with the upper rod and the lower rod respectively. The glass lifting guide rail makes the three integrally fixed and connected stable and reliable after welding, the overall strength is good, the entire door frame and the counterpart are installed with strong sealing and good decoration.