White automobile body tail doorframe checking tool and tail doorframe size detection method

A detection tool and size detection technology, which is applied in the field of car body manufacturing, can solve the problems of increased site costs, high cost of laser scanning point detectors, and inability to measure online, achieving the effect of high relative position accuracy

Inactive Publication Date: 2012-06-06
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Three-coordinate measurement requires a special measurement environment, and its biggest disadvantage is that it cannot be measured online
Laser scanning point detection can realize onli

Method used

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  • White automobile body tail doorframe checking tool and tail doorframe size detection method
  • White automobile body tail doorframe checking tool and tail doorframe size detection method
  • White automobile body tail doorframe checking tool and tail doorframe size detection method

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Experimental program
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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1 shown, select figure 1 The shown tailgate hinge mounting hole 101 and the mounting surface 201 of the tailgate hinge are used as the positioning reference of the measuring tool, and the process hole 104 on the rear floor part of the vehicle is an auxiliary positioning reference. The measurement elements are surfaces: the profile 202 of the upper part of the car D-pillar, the profile 203 of the rear end plate;

[0031] The reasons for choosing the mounting hole 101 of the tailgate hinge and the mounting surface 201 of the tailgate hinge as the positioning reference are:

[0032] The mounting surface of the tailgate hinge is flat, which is beneficial to the positioning of the measuring tool.

[0033] The tailgate hinge mounting hole 101 is a hole that is stamped and formed simultaneously on a single piece of the top cov...

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PUM

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Abstract

The invention relates to the field of manufacturing of automobiles, and provides a white automobile body tail doorframe checking tool and a tail doorframe size detection method. The tool comprises a frame as well as a first locating standard pin, a second locating standard pin, a first locating standard block, a second locating standard block, and an auxiliary locating pin which are arranged on the frame and also comprises a measuring pin and a measuring block which are arranged on the frame. The method comprises the following steps: A, debugging a measuring tool on an entire car measuring inspection device, and leading and fastening each pin and each block at theory positions; B, selecting the top of a tail doorframe and a hole as positioning standards, leading the measuring tool on a welded automobile body, and insetting the auxiliary positioning pin and the measuring pin; and C, using a feeler gauge to detect the gap between the measuring pin and the measuring block and the gap between the hole and top of the tail doorframe, if the gaps are within a specialized range, judging that the gaps are qualified, and if the gaps are out of the specialized range, judging that the gaps are disqualified. The tool provided by the invention can be used for simply, conveniently and accurately detecting the size of the tail doorframe, thereby realizing real-time monitoring on the size variation of the tail doorframe, and effectively controlling the appearance quality of an entire car.

Description

【Technical field】 [0001] The invention relates to the field of vehicle body manufacturing, in particular to a detection tool for a tailgate frame of a body in white. 【Background technique】 [0002] The structure of the mini-car is to install taillights on the tailgate frame. If the size of the tailgate frame is out of tolerance, it will affect the installation gap and step difference between the taillights and the tailgate. Ensuring that the size of the tailgate frame is qualified is very important for the quality control of the appearance of the vehicle. At present, the most common detection methods for the appearance and size of the body-in-white are three-coordinate measuring instrument and laser scanning point measurement. Three-coordinate measurement requires a special measurement environment, and its biggest disadvantage is that it cannot be measured online. Laser point scanning detection can realize online detection, but requires a special closed station, which incr...

Claims

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Application Information

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IPC IPC(8): G01B5/00G01B5/14
Inventor 潘敏刘立华韩卫东
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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