Framework integral magnetic powder inspection device and method

Abstract

The invention discloses a framework integral magnetic powder inspection device which comprises a conveying trolley, a lifting turnover unit comprises two lifting turnover machines, the conveying trolley is used for conveying a framework in a protection chamber and between the two lifting turnover machines, and a magnetizing device and a magnetic suspension spraying system are arranged in the protection chamber; each lifting turnover machine comprises a base, a movable support, a rotary supporting seat and a rotary chuck, a linear guide rail is arranged on the base, the bottom end of the movable support is in sliding fit with the linear guide rail, a first driving motor is arranged on the movable support, and a driving gear is fixedly arranged on an output shaft of the first driving motor; the driving gear is meshed with a rack arranged on the base, the movable support is provided with a second driving motor which drives the rotary supporting seat to ascend and descend along the movable support through a lead screw nut mechanism, and the rotary supporting seat is fixedly provided with a swing hydraulic cylinder used for driving the rotary chuck to rotate. According to the invention, the overall flaw detection efficiency of the framework is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle detection and flaw detection, in particular to a frame integral magnetic particle flaw detection device and method. Background technique [0002] The bogie is one of the most critical parts of the rail transit vehicle, and the frame, as the core part of the bogie, plays the role of connecting various functional components, bearing loads, and transmitting forces in all directions, so there are strict requirements on the welding quality of the frame Require. Magnetic particle testing is a commonly used detection method for weld surface and near-surface defects in the manufacturing process of bogie frames. The flaw detection device and flaw detection operation method not only affect the judgment of frame weld defects, but also affect the production efficiency of the frame. The production and manufacturing process of the frame is that after the frame has been welded and scribed and repaired, a magnet...

AI Technical Summary

Problems solved by technology

When using this flaw detection method, when the frame is mass-produced, on the one hand, due to the large number of welds on the surface of the frame, the flaw detection efficiency will be low, which will seriously restrict the production capacity of the frame; The dust produced by the reinforcing agent and the magnetic suspension will affect the health of workers; on the other hand, the color of the black magnetic suspension is similar to that of the steel plate, and the sensitivity of flaw detection is not high. The accessibility of flaw detection equipment is not high, and there are cases of missed detection, which affects the accuracy of flaw detection of the overall structure, which in turn affects the quality of the weld seam of the frame, affects the judgment of the defect of the weld seam of the frame, and then affects the quality of the weld seam

Images