Testing auxiliary tool and testing method for matching clearance of B column cover plates of car doors

Abstract

The invention relates to a testing auxiliary tool and a testing method for a matching clearance of B column cover plates of car doors. The testing auxiliary tool comprises a base, fixed positioning pins and a movable positioning pin, wherein the fixed positioning pins and the movable positioning pin are arranged on the base. The movable positioning pins are pluggable. The testing auxiliary tool matches a positioning hole on B column wind frame reinforcing plates of a front car door and a back car door through the fixed positioning pins and the movable positioning pin, thereby testing whether the matching clearance between the B column cover plates of the front car door and the back front car door is qualified. The base body has an inverse-F-shaped structure. The upper end and the lower endof the inverse-F-shaped structure are respectively provided with a fixed positioning pin. A third fixed positioning pin is arranged at the upper part of the inverse-F-shaped structure through a connecting block II. The movable positioning pin is arranged outside the lower cross bar of the inverse-F-shaped structure through a connecting block I. The testing auxiliary tool and the testing method ensures high consistency of the matching clearance of the B column cover plates of the car doors, and furthermore reduces reworking of the B column cover plates by employees.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to a detection aid and a detection method for a matching gap of a B-pillar cover plate of a car door. Background technique [0002] The body appearance clearance flatness is an important indicator to measure whether a car is manufactured finely, and it is also the most intuitive feeling for consumers, which can affect consumers' direct impression of a car brand. In recent years, automobile manufacturers have continuously increased their requirements for the "aesthetics" of the car body, and have invested more in the research and application of matching schemes. However, the consistency of matching accuracy is still a problem that plagues most automobile companies, especially those involving Matching of doors and B-pillar covers. [0003] At present, in the automobile production process, the matching clearance of the door B-pillar cover is basically guar...

AI Technical Summary

Problems solved by technology

However, since the door is assembled using the profile of the fixture, the door will sink slightly after assembly due to the gravity of the door during the assembly process. Although the sinking of the door can be corrected by adjusting the fixture, it is because of the The inconsistency of the weight leads to the poor stability of the matching gap when the final assembly is assembled with the B-pillar cover, which does not meet the quality requirements of the whole vehicle.

In addition, after the door is assembled with fixtures, when the door adjustment staff fine-tunes the door, the adjustment and control of the appearance gap flatness has a strong dependence on the operation skills of the staff

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