Plastic thermal riveted assembly monitoring method and device

A monitoring device and hot riveting technology, which is applied in the direction of measuring devices, optical device exploration, and material analysis, can solve problems such as high surface quality requirements, product welding defect assembly quality, unclear edges between targets and backgrounds, etc., to improve production efficiency and quality effects

Active Publication Date: 2018-02-27
JIANGSU RUNMO AUTOMOBILE TESTING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for interior and exterior trim parts such as automobile door panels and instrument panels, the surface quality requirements are high and the structure is complex. During the assembly process, defects are easily formed due to welding process parameter control and positioning errors. Especially in China, manual welding is still mainly used. Assembly-based, resulting in common welding defects or poor assembly quality in final products
In view of the problems referred to above, patent CN106078153A (electric car door structure and its assembly device and assembly and detection method) proposes a car door design and a detection method corresponding to the design form of the car door, but does not involve optical detection technology; patent CN103245263A (a car door Door guard

Method used

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Examples

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Example Embodiment

[0018] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0019] The plastic hot riveting assembly device includes a strong collimated light source module, a camera module, a system control module, and an auxiliary transportation and positioning module. It is used to form a specific shadow area for oblique riveting posts. In specific applications, multiple sets of strong collimated light source modules can be set according to needs. Different sets of strong collimated light source modules are arranged symmetrically in a ring; Appropriate object distance to photograph the welding column, where the object distance is determined by the selected lens and shooting resolution requirements; the system control module is used to control the light intensity and switch of the strong collimated light source, image acquisition cycle, auxiliary transport cycle, image analysis and Riveting quality judgment.

[0020

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PUM

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Abstract

The invention relates to the technical field of automobile part detection, in particular to a plastic thermal riveted assembly monitoring method and device. The method comprises the steps that a to-be-detected workpiece is conveyed to a uniform optical detection view field position by using an auxiliary conveying and positioning module; a powerful alignment light source module shines obliquely togenerate a shadow region, and image collection is conducted by using a camera module; it is judged whether the to-be-detected workpiece is qualified or not through image analysis, and quality evaluation is conducted on the welding conditions through an SVM classifier. By means of the plastic thermal riveted assembly monitoring method, it can be achieved that missing installation, defect identification and quality evaluation of finished products and semi-finished products of automobile doors and other parts can be quickly monitored at a high precision on line, and the production efficiency andquality of an automatic assembly line are improved.

Description

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Claims

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Application Information

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Owner JIANGSU RUNMO AUTOMOBILE TESTING EQUIP
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