Self-correcting ultrasonic thickness gauge

Abstract

The utility model discloses a kind of self-correcting ultrasonic thickness gauge, including ultrasonic thickness gauge body, the side of ultrasonic thickness gauge body is provided with probe, the outer surface of the probe is provided with protective shell, the protective shell includes upper shell and lower shell, the upper shell and lower shell are connected by magnetic attraction component, the upside of the upper shell is also provided with thickness scale block, the upper end of the probe is in contact with the lower surface of the thickness scale block. Through the above structure, automatic correction can be realized, work efficiency is improved, the probe is protected from collision and pollution at the same time, and the protective shell is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic testing technology, and in particular to a self-calibrating ultrasonic thickness gauge. Background Technology

[0002] Ultrasonic thickness gauges are non-destructive testing equipment widely used in industrial fields. They are mainly used to measure the thickness of materials such as metals, plastics, and ceramics. Their working principle involves emitting high-frequency sound waves through an ultrasonic probe and measuring the time it takes for the sound waves to reflect back from the material, thereby calculating the material's thickness. However, existing ultrasonic thickness gauges have some shortcomings in their testing capabilities:

[0003] 1. Calibration is required before use. Traditional methods require additional standard test blocks, which are complicated to operate and prone to errors due to improper placement of test blocks.

[0004] 2. The probes of traditional ultrasonic thickness gauges are usually exposed and are easily affected by collisions, wear, or contamination, which affects the measurement accuracy. Although some devices are equipped with simple protective covers, they are inconvenient to disassemble and affect daily use. Utility Model Content

[0005] The purpose of this invention is to provide a self-calibrating ultrasonic thickness gauge that can achieve automatic calibration, improve work efficiency, protect the probe from collisions and contamination, and facilitate the disassembly and assembly of the protective shell.

[0006] To achieve the above objectives, a self-calibrating ultrasonic thickness gauge is provided, comprising an ultrasonic thickness gauge body, a probe disposed on one side of the ultrasonic thickness gauge body, a protective shell disposed on the outer surface of the probe, the protective shell comprising an upper shell and a lower shell, the upper shell and the lower shell being connected by a magnetic attraction assembly, a thickness mark block disposed on the upper side of the upper shell, and the upper end of the probe abutting against the lower surface of the thickness mark block.

[0007] According to the self-calibrating ultrasonic thickness gauge, a support plate is fixedly connected to the upper surface of the upper housing, and the thickness gauge is fixedly connected to the upper surface of the support plate. The thickness gauge is arc-shaped. The arc design can better adapt to the shape of the probe's detection end, making the contact between the probe and the thickness gauge closer and more stable, thereby improving the accuracy of calibration.

[0008] According to the self-calibrating ultrasonic thickness gauge, a through hole is provided through the inner surface of the middle part of the support plate, and the probe is placed inside the through hole to limit the probe and ensure the relative position of the probe and the thickness gauge is stable.

[0009] According to the self-calibrating ultrasonic thickness gauge, the magnetic suction assembly includes a plurality of first slots formed on the lower surface of the upper housing, and a first magnet is fixedly connected to the inner surface of each of the plurality of first slots. The first slots facilitate the fixing of the first magnets.

[0010] According to the self-calibrating ultrasonic thickness gauge, the magnetic suction assembly further includes several second slots formed on the upper surface of the lower housing. Each of the second slots has a second magnet fixedly connected inside. The second magnets are fixed by the second slots. When the upper housing and the lower housing need to be connected, the first magnet and the second magnet only need to be brought close to each other, and the connection can be quickly completed by the attraction between the magnets. When separation is required, the two can be separated with a little force. The operation is very convenient and facilitates the maintenance and replacement of the probe.

[0011] According to the self-calibrating ultrasonic thickness gauge, the upper outer surface of the ultrasonic thickness gauge body is provided with a socket, and the socket is electrically connected to the probe through a connecting wire.

[0012] According to the self-calibrating ultrasonic thickness gauge, the probe is placed on the inner surface of the lower housing, and a connection hole is provided on the lower surface of the lower housing.

[0013] According to the self-calibrating ultrasonic thickness gauge, the inner surfaces of both the upper and lower housings are provided with protective pads made of rubber, which protect the probe, effectively reduce the impact of external collisions on the probe, prevent the probe from being damaged by collisions, and extend the service life of the probe.

[0014] This utility model has the following beneficial effects:

[0015] 1. Compared with existing technologies, by setting a thickness mark on the protective shell on the outer surface of the probe, and with the upper end of the probe abutting against the lower surface of the thickness mark, when the thickness gauge needs to be calibrated, there is no need to find the thickness mark separately. The calibration operation can be performed directly using the thickness mark on the protective shell, which simplifies the calibration process and improves calibration efficiency. At the same time, the thickness mark is integrated with the protective shell, avoiding the problem of the thickness mark being easily lost when carried separately, making it convenient to use.

[0016] 2. Compared with existing technologies, the installation of the first and second magnets on the inner surface of the protective shell makes the disassembly and assembly of the upper and lower shells very convenient. When the probe needs to be maintained or replaced, the upper and lower shells can be separated, which is simple and labor-saving. At the same time, the protective pads protect the probe. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the overall structure of a self-calibrating ultrasonic thickness gauge according to the present invention.

[0019] Figure 2 This is a front cross-sectional view of the protective shell of a self-calibrating ultrasonic thickness gauge according to the present invention.

[0020] Figure 3 This is a front cross-sectional view of the upper housing of a self-calibrating ultrasonic thickness gauge according to the present invention.

[0021] Figure 4 This is a top view of the lower housing of a self-calibrating ultrasonic thickness gauge according to this utility model.

[0022] Legend:

[0023] 1. Ultrasonic thickness gauge body; 2. Socket; 3. Connecting cable; 4. Probe; 5. Protective shell; 6. Protective pad;

[0024] 51. Upper shell; 511. Support plate; 512. Thickness marker; 513. Through hole; 514. First magnet; 515. First slot; 52. Lower shell; 521. Second magnet; 522. Second slot; 523. Connecting hole. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-4 This utility model discloses a self-calibrating ultrasonic thickness gauge, comprising an ultrasonic thickness gauge body 1, a probe 4 disposed on one side of the ultrasonic thickness gauge body 1, and an insertion hole 2 formed on the upper outer surface of the ultrasonic thickness gauge body 1. The insertion hole 2 is electrically connected to the probe 4 via an inserted connecting wire 3. A protective shell 5 is disposed on the outer surface of the probe 4, the protective shell 5 comprising an upper shell 51 and a lower shell 52, the upper shell 51 and the lower shell 52 being connected by a magnetic suction assembly. A thickness gauge is also provided on the upper side of the upper shell 51. The upper end of the probe 4 abuts against the lower surface of the thickness block 512. A support plate 511 is fixedly connected to the upper surface of the upper housing 51. The thickness block 512 is fixedly connected to the upper surface of the support plate 511, and the thickness block 512 is arc-shaped. A through hole 513 is opened through the inner surface of the middle part of the support plate 511. The probe 4 is placed inside the through hole 513. The diameter of the through hole 513 is slightly larger than the diameter of the probe 4, and the diameter of the hole is tightly fitted with the probe 4 to ensure that the probe 4 and the thickness block 512 are in perpendicular contact.

[0027] The magnetic attraction assembly includes several first slots 515 formed on the lower surface of the upper housing 51. A first magnet 514 is fixedly connected to the inner surface of each of the first slots 515. The first magnet 514 is easily fixed by the first slots 515. The magnetic attraction assembly also includes several second slots 522 formed on the upper surface of the lower housing 52. A second magnet 521 is fixedly connected to the inside of each of the second slots 522. The second magnet 521 is fixed by the second slots 522. The upper housing 51 and the lower housing 52 are detachably connected by the magnetic attraction between the first magnet 514 and the second magnet 521.

[0028] The probe 4 is placed on the inner surface of the lower housing 52, and the lower surface of the lower housing 52 is provided with a connection hole 523. The connection hole 523 in the lower housing 52 is used to accommodate the connecting wire 3, thereby ensuring the smooth flow of the line under the protection state.

[0029] The inner surfaces of the upper housing 51 and the lower housing 52 are provided with protective pads 6. The protective pads 6 are made of rubber and have a honeycomb buffer structure. The protective pads 6 are in contact with the outer surface of the probe 4, which can effectively buffer the impact force from the outside and prevent the probe 4 from being damaged.

[0030] Working principle: When calibration is required, there is no need to find the thickness gauge 512 separately. The thickness gauge 512 on the protective shell 5 can be used directly. Since the upper end of the probe 4 is in contact with the lower surface of the thickness gauge 512, the ultrasonic thickness gauge is started. The ultrasonic pulse emitted by the probe 4 reaches the thickness gauge 512 and is reflected back to the probe 4. The thickness gauge compares the preset thickness parameters of the thickness gauge 512 with the test results to complete the self-calibration process.

[0031] When the probe 4 needs to be maintained or replaced, simply hold the upper housing 51 and the lower housing 52 and apply force in opposite directions to overcome the attraction of the magnet and separate the two. Then, remove the probe 4 and perform the relevant operations. After the operation is completed, the upper housing 51 and the lower housing 52 can be connected again by the magnetic suction assembly.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-calibrating ultrasonic thickness gauge, characterized in that, The instrument includes an ultrasonic thickness gauge body (1), a probe (4) is provided on one side of the ultrasonic thickness gauge body (1), a protective shell (5) is provided on the outer surface of the probe (4), the protective shell (5) includes an upper shell (51) and a lower shell (52), the upper shell (51) and the lower shell (52) are connected by a magnetic suction assembly, a thickness mark (512) is also provided on the upper side of the upper shell (51), and the upper end of the probe (4) abuts against the lower surface of the thickness mark (512).

2. The self-calibrating ultrasonic thickness gauge according to claim 1, characterized in that, The upper surface of the upper housing (51) is fixedly connected to a support plate (511), and the thickness marker (512) is fixedly connected to the upper surface of the support plate (511), and the thickness marker (512) is arc-shaped.

3. The self-calibrating ultrasonic thickness gauge according to claim 2, characterized in that, The support plate (511) has a through hole (513) in the middle inner surface, and the probe (4) is placed inside the through hole (513).

4. The self-calibrating ultrasonic thickness gauge according to claim 1, characterized in that, The magnetic attraction assembly includes a plurality of first slots (515) formed on the lower surface of the upper housing (51), and a first magnet (514) is fixedly connected to the inner surface of each of the plurality of first slots (515).

5. The self-calibrating ultrasonic thickness gauge according to claim 1, characterized in that, The magnetic attraction assembly also includes a plurality of second slots (522) opened on the upper surface of the lower housing (52), and a second magnet (521) is fixedly connected inside each of the plurality of second slots (522).

6. The self-calibrating ultrasonic thickness gauge according to claim 1, characterized in that, The upper outer surface of the ultrasonic thickness gauge body (1) is provided with a socket (2), and the socket (2) is electrically connected to the probe (4) through a connecting wire (3).

7. The self-calibrating ultrasonic thickness gauge according to claim 1, characterized in that, The probe (4) is placed on the inner surface of the lower housing (52), and the lower surface of the lower housing (52) is provided with a connection hole (523).

8. The self-calibrating ultrasonic thickness gauge according to claim 1, characterized in that, The inner surfaces of the upper shell (51) and the lower shell (52) are provided with protective pads (6), and the protective pads (6) are made of rubber.

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