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![Robotic Welding Header.jpg](https://static.wixstatic.com/media/a8e090_3f29615b7be74023af9499220af349bf~mv2.jpg/v1/fill/w_147,h_49,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/a8e090_3f29615b7be74023af9499220af349bf~mv2.jpg)
ROBOTIC WELDING
Roof Panel Assembly System
We have recently completed a pair of robotic welding cells which are used to assemble roof panels for a premier European automotive manufacturer. The cycle time for these operations is 100 seconds and for more details, please see the additional information, images and video below.
![Automatic nut welder](https://static.wixstatic.com/media/a8e090_f68a93ad05314daba96bba9ffe29f6b5~mv2.jpg/v1/fill/w_64,h_57,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Robot%20Cell-1.jpg)
Cell one is used to perform pre-assembly operations and uses 2 ABB IRB6640 robots to weld 34 nuts onto 3 separate pressings.
Cell two comprises 4 robots and welds the entire roof section together. All of the separate component parts are loaded into a fixture by an operator, the fixture indexes around and 2 robots equipped with servo-driven spot welding guns weld the parts together with 57 spot welds.
![Robotic spot welder](https://static.wixstatic.com/media/a8e090_9382ff4226ae4cce880e7c42579549b5~mv2.jpg/v1/crop/x_0,y_9,w_700,h_517/fill/w_76,h_57,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Robot%20Cell-2.jpg)
The operator then unloads the assembly from the indexing fixture and re-loads it to a second fixture which indexes to present it to the third robot which welds 8 nuts to the assembly before putting it on a handover fixture from where the 4th robot picks it up, welds on 6 studs, takes it to a check station, then to a marking station for a serial number, and finally offloads onto a third rotary fixture.