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A device and method for automatic detection of plane residual stress based on magnetoelastic effect

An automatic detection device, residual stress technology, applied in measuring devices, force/torque/work measuring instruments, force measurement by measuring the change of magnetic properties of materials caused by applied stress, etc., can solve complex motion control, automatic manipulator price Expensive and other problems, to achieve the effect of easy overall structure, small footprint, and improved accuracy

Active Publication Date: 2021-03-12
SHANDONG UNIV
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Problems solved by technology

Although this method can realize automatic detection, the automatic manipulator is expensive and the motion control is complicated. When performing stress detection on non-blade workpieces, it is necessary to design special fixtures according to the shape of the workpiece to be tested, and to ensure the stability and reliability of the clamping.

Method used

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  • A device and method for automatic detection of plane residual stress based on magnetoelastic effect
  • A device and method for automatic detection of plane residual stress based on magnetoelastic effect
  • A device and method for automatic detection of plane residual stress based on magnetoelastic effect

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Embodiment 1

[0043] Attached below Figure 1-Figure 7 The present invention is described in detail, specifically, the structure is as follows:

[0044] This embodiment provides an automatic detection device for plane residual stress based on the magnetoelastic effect, including a detection probe 8, a compensation probe 9, a lifting device, a workbench and a driving mechanism thereof, wherein the detection probe 8 and the compensation probe 9 are of the same specification , Probes with the same internal structure that can detect changes in magnetic properties. The lifting device is connected with the detection probe 8, and the compensation probe 9 is placed on the workbench.

[0045]The workbench is provided with three, i.e. the first workbench 10, the second workbench 13, the third workbench 14, and the first workbench 10 is located on the second workbench 13 and is slidably connected with it, the third workbench 14 It is arranged under the second workbench 13 and is slidably connected w...

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Abstract

According to the technical scheme, the plane residual stress automatic detection device based on the magnetoelastic effect. The device comprises a first workbench, a second workbench and a third workbench which are sequentially arranged from top to bottom, wherein the first workbench can horizontally move along the second workbench, the second workbench can horizontally move along the third workbench, a detection probe capable of rotating by a set angle is arranged above the first workbench and connected with a lifting device, a compensation probe is placed on an upper surface of the first workbench, and a calibration sample is placed between the compensation probe and the first workbench. The device is advantaged in that measurement of different points on a plane can be realized, the detection probe can realize lifting in the height direction, and measurement of different heights can be satisfied.

Description

technical field [0001] The invention relates to the field of residual stress detection, in particular to a device and method for automatic detection of plane residual stress based on the magnetoelastic effect. Background technique [0002] Residual stress is one of the important factors affecting the life of components. The detection of residual stress is an important means of safety prevention in industry. Therefore, the detection of residual stress on in-service workpieces or mechanisms is of great significance to life evaluation. At present, there are many methods for magnetic non-destructive testing of residual stress, such as magnetic memory method, magnetoacoustic emission method, magnetic Barkhausen noise method, magnetic particle method, magnetoelastic method, etc.; among them, magnetic memory method, magnetoacoustic emission method, magnetic particle method and The magnetic Barkhausen noise method can only detect the stress concentration area when detecting the resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00G01L1/12
CPCG01L1/122G01L5/0047
Inventor 张建华胡向义王忠诚傅振升
Owner SHANDONG UNIV
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