A cross beam of instrument cluster was welded automatically. In order to eliminate the influence of weld seam position deviation on welding quality, it is necessary to explore the control method and application of weld seam tracking. Several common control methods of welding seam tracking were studied and compared, laser position identification technology was applied in the automatic welding of commercial vehicle’s instrument panel cross beam. The scheme design, system architecture, working process, using effect and other aspects were expounded in detail. Through the verification of the actual production, the laser position identification technology effectively realized the tracking and positioning of the welding seam. By giving feedback and correcting the movement trajectory of the welding robot, it improved the welding accuracy of the instrument panel cross beam, and provided strong guarantee for improving the assembly quality of the cab interior.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |