A fully automatic stress detection device based on magnetic anisotropy method

Abstract

The present invention discloses a fully automatic stress detection device based on magnetic anisotropy method, including a measuring point layout ruler, an automatic magnetic anisotropy probe module arranged above the measuring point layout ruler, and a signal transmission processing module; the measuring point layout ruler includes a frame, measuring point circular holes evenly arranged on the frame, and the measuring point layout ruler is used to unify the measuring point spacing; the automatic magnetic anisotropy probe module includes a fixer, a probe, a rotation module, a lifting and pressing module, and the signal transmission processing module includes a data wireless transmission module and a data receiving and processing module. The present invention has a reasonable structural design and is easy to use. The signal transmission processing module is used to automatically sort out the data signals obtained by the detection to obtain the detection results. It has a high degree of automation and strong practicality, and effectively solves the problems of unstable measurement and large errors caused by uneven distribution of measuring point spacing, inconsistent performance parameters of magnetic anisotropy probes, and inconsistent lifting heights.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic stress nondestructive testing, and in particular to a full-automatic stress testing device based on a magnetic anisotropy method. Background Art

[0002] Components made of ferromagnetic materials are widely used in modern industrial production. It is of great engineering significance to evaluate the service life and safety of ferromagnetic components through stress testing. Ferromagnetic components in service are simultaneously subjected to load stress and residual stress in the production and processing process. When the stress level exceeds the strength limit of the ferromagnetic component, it will cause cracks or failure. If not handled in time, it will bring safety hazards.

[0003] In large-scale engineering environments such as bridge engineering and pressure vessels, load stress is the main factor causing fatigue damage to ferromagnetic components. In order to facilitate measurement, people have designed a magnetic detection device with multi-probe wireless signal transmission. Due to the uneven distribution of measurement point spacing, inconsistent performance parameters of magnetic anisotropy probes, and inconsistent physical height, and each probe is fixed and cannot be rotated at an angle, the measurement stability is poor and the measurement error is large.

[0004] Therefore, based on the above problems, the applicant designed a fully automatic stress detection device that ensures uniform distribution of measurement point spacing. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a set of fully automatic stress detection devices based on the principle of magnetic anisotropy, which uses one probe to avoid the inconsistency of multiple probe parameters, can achieve unified measurement point spacing, automatically rotate the measurement angle, automatically change the measurement point and transmit the measurement signal in real time, which is conducive to improving the test accuracy and efficiency. The technical solution provided by the present invention is: a fully automatic stress detection device based on the magnetic anisotropy method, including a measurement point layout ruler, an automatic magnetic anisotropy probe module arranged above the measurement point layout ruler, and a signal transmission processing module;

[0006] The measuring point layout ruler comprises a frame, measuring point circular holes evenly arranged on the frame, an adsorption device is arranged on one side of the frame, and a plurality of tracks are evenly arranged on the upper end surface of the frame along its length direction, and the measuring point layout ruler is used to unify the measuring point spacing;

[0007] The automatic magnetic anisotropy probe module includes a fixture, a probe, a rotation module, and a lift-off and clamping module. The fixture is provided with wheels that match the track, and the wheels are provided with a driving motor that drives the fixture to move. The fixture is provided with a probe, a rotation module, and a lift-off and clamping module. The rotation module is used to drive the probe to rotate, and the lift-off and clamping module is used to lift the probe upward and clamp downward. The fixture moves along the track.

[0008] The signal transmission processing module includes a data wireless transmission module and a data receiving and processing module. The data wireless transmission module includes a power supply module, an excitation and magnetic sensing module, which is electrically connected to the probe. The data wireless transmission module is wirelessly connected to the data receiving and processing module.

[0009] As an improvement, the frame is rectangular, the measuring point circular holes are multiple and evenly arranged, which cooperate with the probe, and the adsorption device is a vacuum suction cup, which is multiple and evenly arranged.

[0010] As an improvement, the fixture is in the shape of a rectangular parallelepiped, and wheels that rotate with it are arranged at the four corners below, and a driving motor is arranged on the wheels. A rotation module and a lifting and pressing module are fixedly arranged in the middle part of the fixture. The lifting and pressing module is a straight rod motor, and the rotation module is fixedly arranged at its output end. The rotation module is a rotating motor, and a probe is fixedly arranged at its output end.

[0011] As an improvement, the data wireless transmission module is used to collect the signals detected by the probe and transmit them wirelessly to the data receiving and processing module. The data receiving and processing module converts the received signals into the magnitude and direction of stress through stress testing software.

[0012] After adopting the above structure, the present invention has the following advantages: the present invention fixes and unifies the spacing of the measuring points through the measuring point layout ruler, ensures that the spacing of the measuring points is evenly distributed, and realizes the beneficial effect of automatically detecting the probe at each measuring point through the driving motor, rotating module, lifting and pressing module on the fixture. The present invention has a reasonable structural design and is easy to use. The signal transmission processing module is used to automatically sort the data signal obtained by the detection to obtain the detection result. It has a high degree of automation and strong practicality. It effectively solves the problems of unstable measurement and large errors caused by uneven distribution of measuring point spacing, inconsistent performance parameters of magnetic anisotropy probes, and inconsistent physical height. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a measuring point layout ruler of a fully automatic stress detection device based on a magnetic anisotropy method of the present invention.

[0014] Figure 2The present invention is a structural schematic diagram of an automatic magnetic anisotropy probe module of a fully automatic stress detection device based on a magnetic anisotropy method.

[0015] Figure 3 It is a structural schematic diagram of a signal transmission processing module of a fully automatic stress detection device based on a magnetic anisotropy method of the present invention.

[0016] As shown in the figure: 1. Measuring point layout ruler, 1.1. Frame, 1.2. Measuring point circular hole, 1.3. Adsorption device, 1.4. Track, 2. Automatic magnetic anisotropy probe module, 2.1. Fixer, 2.11. Wheel, 2.2. Probe, 2.3. Rotation module, 2.4. Lifting and pressing module, 3. Signal transmission processing module. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0019] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the embodiments of the present invention, "plurality" means at least 2.

[0021] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Combined with Figures 1 to 3 , the present invention provides a fully automatic stress detection device based on magnetic anisotropy method, including a measuring point layout ruler 1, an automatic magnetic anisotropy probe module 2, and a signal transmission processing module 3;

[0023] The measuring point layout ruler 1 comprises a rectangular frame 1.1, on which a plurality of measuring point circular holes 1.2 are evenly arranged, and an adsorption device 1.3 for fixing the measuring point in the test area is arranged on one side of the frame 1.1. The measuring point layout ruler 1 is used to unify the measuring point spacing, and a plurality of tracks 1.4 are arranged on its upper end surface along its length direction;

[0024] The automatic magnetic anisotropy probe module 2 is arranged above the measuring point layout ruler 1 and moves along the track 1.4, and includes a fixture 2.1, a probe 2.2, a rotation module 2.3, and a lift-off and pressing module 2.4. The fixture 2.1 is in the shape of a rectangular parallelepiped, and wheels 2.11 rotatably connected to the fixture 2.1 are arranged at the four corners below the fixture 2.1, and a driving motor is arranged on the wheels 2.11. The fixture 2.1 is provided with a rotation module 2.3, a lift-off and pressing module 2.4, and the lift-off and pressing module Block 2.4 is a straight rod motor, and the rotating module 2.3 is fixedly provided at its output end. The rotating module 2.3 is a rotating motor, and the probe 2.2 is fixedly provided at its output end. Under the action of the rotating module 2.3 and the lifting and pressing module 2.4, the probe 2.2 drives the motor to drive the wheels to move the probe to the measuring point position, and is pressed by the lifting and pressing module to perform 0° measurement and collection, and then automatically rotates 45° for measurement and collection through the rotating device, followed by 90° and 135° measurements.

[0025] The signal transmission processing module 3 includes a data wireless transmission module 3.1 and a data receiving and processing module 3.2. The data wireless transmission module 3.1 includes a power supply module, an excitation and magnetic induction module, which is electrically connected to the probe 2.2. The data wireless transmission module 3.1 is connected to the data receiving and processing module 3.2 by wireless. The measurement and collection of data at each angle of the probe 2.2 is sent to the data receiving and processing module 3.2 through the data wireless transmission module 3.1. The data receiving and processing module 3.2 converts the received data into the magnitude and direction of stress through the stress test software.

[0026] As a preferred implementation scheme of this embodiment, the data wireless transmission module 3.1 contains a controller and a wireless transmitter. The controller controls the wireless transmitter to send relevant signals to the data receiving and processing module 3.2. The data receiving and processing module 3.2 can be a computer, which converts the signal into the size and direction of stress through software, and automatically stores and displays it.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A fully automatic stress detection device based on magnetic anisotropy method, characterized in that: It includes a measuring point layout ruler, an automatic magnetic anisotropy probe module arranged above the measuring point layout ruler, and a signal transmission processing module; The measuring point layout ruler comprises a frame, measuring point circular holes evenly arranged on the frame, an adsorption device is arranged on one side of the frame, and a plurality of tracks are evenly arranged on the upper end surface of the frame along its length direction, and the measuring point layout ruler is used to unify the measuring point spacing; The automatic magnetic anisotropy probe module includes a fixture, a probe, a rotation module, and a lift-off and clamping module. The fixture is provided with wheels that match the track, and the wheels are provided with a driving motor that drives the fixture to move. The fixture is provided with a probe, a rotation module, and a lift-off and clamping module. The rotation module is used to drive the probe to rotate, and the lift-off and clamping module is used to lift the probe upward and clamp downward. The fixture moves along the track. The signal transmission processing module includes a data wireless transmission module and a data receiving and processing module. The data wireless transmission module includes a power supply module, an excitation and magnetic sensing module, which is electrically connected to the probe. The data wireless transmission module is wirelessly connected to the data receiving and processing module.

2. The fully automatic stress detection device based on magnetic anisotropy method according to claim 1 is characterized in that: The frame is rectangular, the measuring point circular holes are multiple and evenly arranged, and cooperate with the probe, and the adsorption device is a vacuum suction cup, which is multiple and evenly arranged.

3. The fully automatic stress detection device based on magnetic anisotropy method according to claim 1 is characterized in that: The fixture is in the shape of a rectangular parallelepiped, and wheels that rotate with it are arranged at the four corners below. A driving motor is arranged on the wheels. A rotation module and a lifting and pressing module are fixedly arranged in the middle of the fixture. The lifting and pressing module is a straight rod motor, and the rotation module is fixedly arranged at the output end. The rotation module is a rotating motor, and a probe is fixedly arranged at the output end.

4. The fully automatic stress detection device based on magnetic anisotropy method according to claim 1 is characterized in that: The data wireless transmission module is used to collect the signals detected by the probe and transmit them to the data receiving and processing module via wireless. The data receiving and processing module converts the received signals into the magnitude and direction of stress through stress testing software.

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