Microbeam plasma arc scanning type weld seam tracking sensor
A plasma arc and scanning technology, applied in the field of sensors, can solve the problems of unstable distance, poor data validity, poor stability of microbeam plasma arc, etc., and achieve the effects of high tracking accuracy, high effectiveness and good repeatability
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specific Embodiment approach 1
[0007] Specific implementation mode one: see figure 1 , figure 2 , this embodiment is made up of upper gun body 1, lower gun body 2, compression nozzle 3 and tungsten pole 4, upper gun body 1, lower gun body 2 and compression nozzle 3 are all cavity structures, and the inner cavity of lower gun body 2 It is divided into two chambers, the middle chamber of the gun body 2-1 and the outer chamber of the gun body 2-2. The inner chamber of the compression nozzle 3 is divided into two chambers: the middle chamber of the nozzle 3-1 and the outer chamber of the nozzle 3-2. The upper gun body The bottom of 1 is fixedly connected with the top of the lower gun body 2, the inner cavity of the upper gun body 1 communicates with the middle chamber 2-1 of the lower gun body 2, and the bottom of the lower gun body 2 is fixedly connected with the top of the compression nozzle 3 , the gun body middle chamber 2-1 of the lower gun body 2 is connected with the nozzle middle chamber 3-1 of the co...
specific Embodiment approach 2
[0009] Specific implementation mode two: see figure 1 , the difference between this embodiment and the specific embodiment one is that it increases the centering ring 8, which has several through holes 8-1 on the centering ring 8, and the centering ring 8 is arranged in the middle chamber of the lower gun body 2 2-1 and the nozzle cavity 3-1 of the compression nozzle 3, the lower end of the tungsten electrode 4 passes through the through hole 8-1 located in the center of the centering ring 8. Other structures are the same as in the first embodiment. The material of the centering ring 8 is a heat-resistant insulating material (such as ceramics), which is used to position the tungsten electrode 4 so that it is aligned with the center of the nozzle 6 of the compression nozzle 3, which can better improve the stability and repeatability of the plasma flame flow .
specific Embodiment approach 3
[0010] Specific implementation mode three: see figure 1 The difference between this embodiment and the third embodiment is that it adds a first sealing ring 11 and a second sealing ring 12, and the first sealing ring 11 is arranged between the inner chamber 2-1 of the gun body and the inner chamber 3-1 of the nozzle. At the junction, the second sealing ring 12 is arranged at the junction of the gun outer chamber 2-2 and the nozzle outer chamber 3-2. Other structures are the same as in the first embodiment. If the cooling water leaks through the junction of the gun outer cavity 2-2 of the lower gun body 2 and the nozzle outer cavity 3-2 of the compression nozzle 3, the sensor will be damaged, and the first sealing ring 11 and the second sealing ring 12 will be damaged. The material is insulating material (such as rubber), which can effectively prevent the leakage of cooling water and improve the safety of the sensor.
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Abstract
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