A kind of vehicle door assembly accuracy detection method

Abstract

The invention relates to the automobile door detection field, and specially relates to a vehicle door assembling precision detection method. The vehicle door assembling precision detection method includes the steps: manufacturing reference hinges for a vehicle door assembly testing fixture for solving the vehicle door assembly part installation hinge reference simulation loading state, and quicklyevaluating whether the vehicle door precision is out-of-tolerance; manufacturing detection hinges for the vehicle door assembly testing fixture for solving the vehicle door assembly hinge installingsurface and hole site detection problem; using the same technological backing plate to process and manufacture the detection hinges and the reference hinges for solving the problem that mounting holesites of the 8 detection hinges for the front and back vehicle doors are very low in processing precision, unifying the processing reference and improving the processing precision; and when detectingand simulating loading of the vehicle door assembly, executing the clearance adjustment function to enable the loading to be consistent with the detection state.

Description

technical field [0001] The invention relates to the field of vehicle door detection, in particular to a method for detecting assembly accuracy of a vehicle door. Background technique [0002] The door assembly of a four-door car includes a left front door, a left rear door, a right front door, and a right rear door assembly. There are two upper and lower hinges installed on each door. There are four door assemblies and eight hinges in total for a four-door car. Hinge fittings. The car door assembly parts are installed on the body through the upper and lower hinges, and the door hinge parts are fixed and installed on the side wall and the car door by bolts. The door hinge is used as an opening and closing part. When the matching gap and surface difference are out of tolerance during the assembly of the front and rear doors and the body, it is necessary to judge the out-of-tolerance of the eight parts of the front and rear doors and the upper and lower hinges. [0003] The e...

AI Technical Summary

Problems solved by technology

[0004] 1) The assembly detection of the door hinge is inconsistent with the actual state of loading, and there is a measurement error. When the door and hinge are assembled in the production workshop, the hinge bolts are tightened after the door, the fender and the side wall are controlled by a special gap gauge to pass the clearance. The vehicle door inspection tool does not have the function of simulating the assembly of the vehicle door hinge during production to adjust and control the clearance;

[0005] 2) The detection method is not systematic, the front and rear doors and the upper and lower hinges are assembled as a combination, and the detection is performed separately, so it is impossible to judge out-of-tolerance parts in time, and the simulated loading function is not realized on the door assembly inspection tool;

[0006] 3) There is no unified reference hinge and detection hinge when the upper and lower hinges of the front and rear doors are assembled and tested, and the processing method lacks a unified reference and there are manufacturing errors, resulting in measurement errors

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