Edge covering method for automobile trunk door

Abstract

The invention belongs to the field of automobile manufacturing and specifically relates to an edge covering method for an automobile trunk door. The edge covering method comprises the following steps: firstly, a trunk door waiting for edge covering is placed in a lower die of an oil press and clamped by use of a hold-down block; secondly, a final covering module mounted under an upper die of the oil press tightly props against an inner side of the trunk door waiting for edge covering under the action of an oil cylinder, and similarly, an edge reversing module mounted below the upper die of the oil press and located on an outer side of the trunk door waiting for edge covering goes forward toward the trunk door waiting for edge covering under the action of the oil cylinder to carry out edge reversing work, and an edge reversing angle can be adjusted within a certain range according to process requirements; then, the edge reversing module and the final covering module retreat from an edge covering region, respectively; a pre-covering module mounted below the upper die moves downwards under the action of the oil cylinder for pre-covering, and a pre-covering edge can be adjusted within a certain range according to process requirements; finally, after pre-covering is finished, the pre-covering module retreats upwards from the edge covering region, and the final covering module is pushed by the oil cylinder to carry out final covering work.

Description

technical field [0001] The invention belongs to the field of automobile manufacturing, and specifically relates to an edge-wrapping method for an automobile backup door. Background technique [0002] Hemming is a process of combining the outer panel and the inner panel, and putting the inner panel into the flange of the outer panel for cladding. Since five doors and one cover occupy more than 60% of the exterior area of ​​the vehicle body, the quality of the hemming directly affects the quality of the vehicle. During product development, enterprises should design different hemming forms according to product requirements, and at the same time determine different hemming processes according to production layout, model output and model grade. After the high-quality hemming is completed, the outer surface of the door and cover can be smooth and flat, without defects such as indentation, depression, convexity, and hemming warpage, and ensure that the overall size of the product ...

AI Technical Summary

Problems solved by technology

[0014] In the above-mentioned existing automobile door hemming technology, the hemming process includes pre-hemming and final hemming, and the angle of hemming is basically within 90°, rarely exceeding 135°. can not achieve

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