Rotary positioning head gear and pedal column welding frame

Abstract

The invention discloses a rotary locating type headstock back gear and pedal stand column welding frame. According to the rotary locating type headstock back gear and pedal stand column welding frame,a back gear and a pedal stand column can be located and fixed, the relative positions of a vehicle door hinge mounting plate and a vehicle door lock mounting plate can be limited, and the precision of the relative positions of the vehicle door hinge mounting plate and the vehicle door lock mounting plate is effectively improved after the back gear and the pedal stand column are welded into a whole. The rotary locating type headstock back gear and pedal stand column welding frame comprises a rack, a back gear locating tool, a pedal stand column locating tool and a rotary type vehicle door frame limiting device. The rack comprises a first base and a back gear locating frame arranged on the first base. The rotary type vehicle door frame limiting device is used for limiting the vehicle door lock mounting plate arranged on the back gear and used for mounting a vehicle door lock and the vehicle door hinge mounting plate arranged on the pedal stand column and used for mounting a vehicle doorhinge.

Description

technical field [0001] The invention relates to a welding tool for a front frame, in particular to a rotary positioning type welding frame for the back of the car and the pedal column. Background technique [0002] The head frame of the current transport vehicle is usually welded and assembled by several large parts, and the head frame of a small transport vehicle is welded and assembled by the rear gear, the left and right pedal columns, the front gear and the top left and right longitudinal beams. . The actual welding assembly process of the head frame of the small transport vehicle usually includes the following two welding assembly stations. The front welding assembly station is: the welding assembly station of the rear gear and the pedal column; the rear welding assembly station is: The welding station for welding the semi-finished components of the back rail and the pedal column, and the front rail and the top left and right longitudinal beams. [0003] like Figure ...

AI Technical Summary

Problems solved by technology

[0004] On the other hand, since the rear leaning gear and the pedal column will be used as a part of the door frame after being welded, the rear leaning gear is provided with a door lock mounting plate 1a. There is a door hinge mounting plate 1b.2 for installing the door hinge, and the relative position accuracy of the door hinge mounting plate and the door lock mounting plate is relatively high, otherwise, after the door is installed on the door hinge mounting plate through the door hinge, the The problem that the door lock part will not fit smoothly with the door lock part installed on the door lock mounting plate

[0005] During the actual welding and assembly process of the front frame, it often happens that the relative position of the door hinge mounting plate and the door lock mounting plate does not meet the design requirements due to welding deformation or other reasons after the rear gear and the pedal column are welded as a whole. The most important thing is that the distance between the door hinge mounting plate and the door lock mounting plate is too small), resulting in that after the door is installed on the door hinge mounting plate through the door hinge, the door lock part on the door will not be able to fit the door on the door lock mounting plate. Problems with the smooth fit of the lock part

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