Device for standardizing and controlling magnetic powder detection time

Abstract

The utility model relates to a device for standardizing and controlling magnetic powder detection time, and belongs to the technical field of mechanical equipment. According to the technical scheme, the time delay switch comprises a magnet yoke (1), a long-closed switch (2), a magnet yoke power line (3), a time delay switch socket (4) and a power source (5) with a leakage protector, the long-closed switch (2) is arranged on the magnet yoke (1), the time delay switch socket (4) is inserted in front of the power source (5) with the leakage protector, and the magnet yoke (1) is connected with the time delay switch socket (4) through the magnet yoke power line (3). The magnetic powder magnetizing device has the advantages that human intervention is greatly reduced, the operation risk of too short power-on time is prevented, the structure is simple, adjustment is convenient, the cost is low, the magnetizing time is standardized, the magnetic powder inspection accuracy is improved, and the situation of magnetic powder missing inspection is avoided.

Description

Technical Field

[0001] The utility model relates to a device for regulating and controlling magnetic powder detection time, belonging to the technical field of mechanical equipment. Background Art

[0002] Currently, when using the yoke method for magnetic particle inspection, the magnetization time is a crucial parameter, determining whether defects can be effectively detected. Typically, if the energization time is too short, defects are difficult to detect; while if the energization time is too long, the yoke can easily overheat and become damaged.

[0003] As required by the NB / T47013.4-2015 standard, the magnetization power-on time is generally 1s to 3s, and magnetization can be stopped at least 1 second after the application of magnetic powder or magnetic suspension is stopped.

[0004] Currently, the magnetization time for workpieces is controlled by manually operating a switch. When the switch is pressed, the yoke is magnetized; when the switch is not pressed, magnetization stops. Depending on the operator's skill level, work conscientiousness, or a rush to produce, the magnetization time is often insufficient. This results in ineffective detection of magnetic particle defects, missed inspections, and a detrimental effect on the standardization of magnetic particle testing. Furthermore, the frequent use of switches for magnetization often leads to electric shocks for inspectors. Utility Model Content

[0005] The purpose of the utility model is to provide a device for regulating the magnetic powder detection time. By modifying the magnetic yoke and adopting a time-delay switch socket to adjust the power-on time of the magnetic yoke according to the specification, it can be ensured that the magnetic powder detection personnel perform the magnetic powder detection operation within the standardized magnetization time, avoiding artificial shortening of the magnetization power-on time; by setting the power-off time in between, it is convenient for the operator to perform cross-magnetization and change the magnetization position; and an emergency power-off device is set to protect the service life of the magnetic yoke; when the magnetic yoke is not powered off, it is difficult for the operator to move the magnetic yoke due to the magnetic force, so the human intervention is greatly reduced, and the risk of operation with too short power-on time is prevented. The utility model has a simple structure, is easy to adjust, and is low in cost. It regulates the magnetization time and improves the accuracy of magnetic powder inspection, avoids the occurrence of magnetic powder missed inspection, and solves the above-mentioned problems existing in the background technology.

[0006] The technical solution of the utility model is: a device for standardizing the control of magnetic powder detection time, comprising a yoke, a long-closed switch, a yoke power cord, a delay switch socket and a power supply with a leakage protector, the long-closed switch is arranged on the yoke, the delay switch socket is inserted in front of the power supply with the leakage protector, and the yoke is connected to the delay switch socket through the yoke power cord.

[0007] The time-delay switch socket is provided with a timing device, and the power-on and power-off times match the standards and flaw detection process requirements.

[0008] The long-closed switch is a manual switch.

[0009] The power supply with a leakage protector comprises a leakage protector and a power socket, and the leakage protector is installed at the front end of the power socket.

[0010] The beneficial effects of the present invention are as follows: by modifying the magnetic yoke and adopting a time-delay switch socket to adjust the power-on time of the magnetic yoke according to the specification, it can be ensured that the magnetic powder inspection personnel perform the magnetic powder inspection operation within the specified magnetization time, avoiding artificial shortening of the magnetization power-on time; by setting the power-off time in between, it is convenient for the operator to perform cross-magnetization and change the magnetization position; and an emergency power-off device is provided to protect the service life of the magnetic yoke; when the magnetic yoke is not powered off, it is difficult for the operator to move the magnetic yoke due to the magnetic force, so that human intervention is greatly reduced and the risk of operation with too short power-on time is prevented. The utility model has a simple structure, is easy to adjust, and is low in cost, and can standardize the magnetization time and improve the accuracy of magnetic powder inspection, avoiding the occurrence of magnetic powder missed inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the background technology diagram of the present utility model;

[0012] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 3 This is a physical picture of the time-delay switch socket of the utility model;

[0014] In the figure: yoke 1, long closed switch 2, yoke power cord 3, delay switch socket 4, power supply with leakage protector 5. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the implementation cases of the present utility model clearer, the technical solutions in the implementation cases of the present utility model will be clearly and completely described below in combination with the drawings in the implementation cases. Obviously, the implementation cases described are only a small part of the implementation cases of the present utility model, rather than all the implementation cases. Based on the implementation cases in the present utility model, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

[0016] A device for standardizing the control of magnetic powder detection time includes a yoke 1, a long-closed switch 2, a yoke power cord 3, a delay switch socket 4 and a power supply 5 with a leakage protector. The long-closed switch 2 is arranged on the yoke 1, the delay switch socket 4 is inserted in front of the power supply 5 with a leakage protector, and the yoke 1 is connected to the delay switch socket 4 through the yoke power cord 3.

[0017] The time delay switch socket 4 is provided with a timing device, and the power on and off times are matched with the standards and flaw detection process requirements.

[0018] The long-closed switch 2 is a manual switch.

[0019] The power supply 5 with leakage protector includes a leakage protector and a power socket, and the leakage protector is installed at the front end of the power socket.

[0020] In practice, the yoke manual switch is changed from a permanently open design to a permanently closed one. The permanently closed switch 2 is used only in emergencies and not during normal operation. A leakage protector is installed at the front end of the power socket, creating a power supply 5 with a leakage protector, ensuring the safety of handheld power tools. A time delay switch is installed on the power socket, creating a time delay switch socket 4. This allows for precise timing, allowing each power on and off time to be preset in advance according to standards and flaw detection process requirements. Pressing the permanently closed switch 2 de-energizes the yoke 1, inserting the time delay switch socket 4, and releasing the permanently closed switch 2 allows magnetization to proceed.

[0021] Note: In case of emergency, press and hold the long closed switch 2, the yoke 1 will stop working, and then unplug the yoke plug.

Claims

1. A device for regulating the time of magnetic particle detection, characterized by: The invention comprises a magnetic yoke (1), a long-closed switch (2), a magnetic yoke power line (3), a time-delay switch socket (4), and a power supply (5) with a leakage protector, wherein the long-closed switch (2) is arranged on the magnetic yoke (1), the time-delay switch socket (4) is inserted in front of the power supply (5) with the leakage protector, and the magnetic yoke (1) is connected to the time-delay switch socket (4) via the magnetic yoke power line (3).

2. The device for regulating the time of magnetic powder detection according to claim 1, characterized in that: The time-delay switch socket (4) is provided with a timing device, and the power-on and power-off times match the standards and flaw detection process requirements.

3. The device for regulating the time of magnetic powder detection according to claim 1, characterized in that: The long-closed switch (2) is a manual switch.

4. The device for regulating the time of magnetic powder detection according to claim 1, characterized in that: The power supply (5) with leakage protector comprises a leakage protector and a power socket, and the leakage protector is installed at the front end of the power socket.

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