阅读说明：本技术 适用于球型组件的涡流检测装置 (Eddy current detection device suitable for ball-type subassembly ) 是由 易涛 郭晓东 苏明 唐立 郑万国 谢旭飞 杨家敏 王峰 江少恩 于 2021-01-15 设计创作，主要内容包括：本发明公开了一种适用于球型组件的涡流检测装置,包括底座,所述底座上安装有转轴,该转轴能够在驱动机构带动下旋转和升降,其上端设有用于安装球型组件的定位座,所述底座上固定安装有呈弧形构造的支架,所述支架上分布有伸缩式涡流探头,所述伸缩式涡流探头的探头组件均朝向支架的圆心,并能够朝靠近或远离该圆心的方向运动。本发明的有益效果是：在对球型样品进行涡流检测时,具有定位安装方便和测量效率高的技术优势。转轴和探头组件均能够沿其所在的轴线伸缩运动,能够适用于检测不同尺寸的球型样品,通用性较好。(The invention discloses a vortex detection device suitable for a spherical component, which comprises a base, wherein a rotating shaft is arranged on the base, the rotating shaft can rotate and lift under the driving of a driving mechanism, a positioning seat for mounting the spherical component is arranged at the upper end of the rotating shaft, a bracket in an arc structure is fixedly arranged on the base, telescopic vortex probes are distributed on the bracket, and the probe components of the telescopic vortex probes face to the center of the bracket and can move towards the direction close to or far away from the center of the bracket. The invention has the beneficial effects that: when the eddy current detection is carried out on the spherical sample, the device has the technical advantages of convenience in positioning and installation and high measuring efficiency. The rotating shaft and the probe assembly can both move in a telescopic mode along the axis where the rotating shaft and the probe assembly are located, the device can be suitable for detecting spherical samples of different sizes, and the universality is good.)

1. The utility model provides a vortex detection device suitable for ball-type subassembly which characterized in that: including base (4), install pivot (3) on base (4), this pivot (3) can be rotatory and go up and down under actuating mechanism drives, and its upper end is equipped with positioning seat (3a) that are used for installing ball-type subassembly (10), fixed mounting has support (1) that is the arc structure on base (4), it has telescopic vortex probe (2) to distribute on support (1), probe assembly (2a) of telescopic vortex probe (2) all towards the centre of a circle of support (1) to can move towards the direction that is close to or keeps away from this centre of a circle.

2. The eddy current testing device for ball-type assemblies as claimed in claim 1, wherein: the support (1) is of a semicircular structure.

3. The eddy current testing device for a ball-type assembly according to claim 1 or 2, wherein: telescopic eddy current probe (2) are including shell (2b) of fixed mounting on support (1), probe subassembly (2a) slidable mounting is equipped with gliding linear electric motor (2c) of drive probe subassembly (2a) in shell (2 b).

4. The eddy current testing device for a ball-type assembly according to claim 1 or 2, wherein: the probe assembly (2a) is internally provided with a camera (2a1), an eddy current coil (2a2) and a distance measuring probe (2a 3).

5. The eddy current testing device for a ball-type assembly according to claim 4, wherein: the base (4) is provided with a controller (5), and the controller (5) is electrically connected with each probe assembly (2a) through a cable (6).

6. The eddy current testing device for ball-type assemblies as claimed in claim 1, wherein: the rotating shaft (3) is rotatably installed on the base (4) through the rotating platform (3c), and the lifting mechanism (3b) is installed between the rotating platform (3c) and the base (4).

Technical Field

The invention relates to a vortex detection device, in particular to a vortex detection device suitable for a spherical component.

Background

The eddy current detection method is based on the electromagnetic induction principle, when a component to be detected is placed in an alternating magnetic field, induced current exists in the component to be detected, namely eddy current is generated, the eddy current changes due to the change of factors (such as conductivity, permeability, shape, size, defects and the like) of the component to be detected, and the detection method for judging the property and the state of the component to be detected by utilizing the phenomenon is called eddy current detection.

Eddy current testing is a very common non-destructive testing method, which has been widely used in many industrial fields. However, in the prior art, the technical problems of difficult positioning, inconvenient installation of the detector and low detection efficiency still exist for the detection of the ball-type component.

Disclosure of Invention

In view of this, the present invention provides an eddy current inspection apparatus suitable for a spherical component, so as to solve the technical problems of difficult positioning of the spherical component, inconvenient installation of a detector, and low detection efficiency.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides an eddy current testing device suitable for ball-type subassembly which the key lies in: the improved vortex flow measuring device comprises a base, a rotating shaft is installed on the base and can rotate and lift under the driving of a driving mechanism, a positioning seat used for installing a spherical assembly is arranged at the upper end of the rotating shaft, a support with an arc-shaped structure is fixedly installed on the base, telescopic vortex flow probes are distributed on the support, probe assemblies of the telescopic vortex flow probes face the circle center of the support and can move towards the direction close to or away from the circle center.

By adopting the structure, after the spherical component to be measured is placed on the positioning seat, the spherical component is lifted upwards by the lifting mechanism, so that the telescopic eddy current probe starts to measure the distance between the probe component and the surface of the spherical component, and when the distances between the probe components and the surface of the spherical component are equal, the spherical center of the spherical component is superposed with the circle center of the support. Then the spherical component is driven by the rotating shaft to rotate, and the probe component on the bracket can carry out eddy current detection on the spherical component.

Preferably, the method comprises the following steps: the support is of a semicircular structure. By adopting the structure, the telescopic eddy current probes are conveniently distributed and installed on the circumferential line.

Preferably, the method comprises the following steps: the telescopic eddy current probe comprises a shell fixedly mounted on the support, the probe assembly is mounted in the shell in a sliding mode, and a linear motor for driving the probe assembly to slide is arranged in the shell. By adopting the structure, the linear motor can control the probe assembly to do telescopic motion.

Preferably, the method comprises the following steps: the probe assembly is internally provided with a camera, an eddy current coil and a distance measuring probe. By adopting the structure, the camera is used for shooting the positioning point, the distance between the distance measuring probe assembly and the surface of the spherical sample is measured by the distance measuring probe, and the eddy current coil is used for eddy current detection of the sample.

Compared with the prior art, the invention has the beneficial effects that:

1. when the eddy current detection is carried out on the spherical sample, the device has the technical advantages of convenience in positioning and installation and high measuring efficiency.

2. The rotating shaft and the probe assembly can both move in a telescopic mode along the axis where the rotating shaft and the probe assembly are located, the device can be suitable for detecting spherical samples of different sizes, and the universality is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of a telescopic eddy current probe.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

As shown in fig. 1 and 2, the eddy current testing apparatus suitable for the spherical component structurally comprises a base 4, a rotating shaft 3 is mounted on the base 4, a positioning seat 3a is arranged at the upper end of the rotating shaft 3, and a lifting mechanism 3b and a rotating table 3c are arranged between the lower end of the rotating shaft 3 and the base 4, wherein the rotating table 3c is mounted on the lifting mechanism 3b, the spherical component 10 is mounted on the positioning seat 3a, the lifting mechanism 3b can drive the spherical component 10 to move up and down, and the rotating table 3c can drive the spherical component 10 to rotate.

The base 4 is also fixedly provided with a bracket 1 which is in an arc structure, in the embodiment, the specific structure of the bracket 1 is semicircular, four groups of telescopic eddy current probes 2 are distributed on the bracket, each telescopic eddy current probe 2 comprises a shell 2b fixedly arranged on the bracket 1 and a probe assembly 2a slidably arranged in the shell 2b, a linear motor 2c for driving the probe assembly 2a to slide is arranged in the shell 2b, the probe assembly 2a of each telescopic eddy current probe 2 faces the center of the bracket 1, the probe assembly 2a can move towards the direction close to or far away from the center of the bracket 1 under the driving of the linear motor 2c, a camera 2a1, an eddy current coil 2a2 and a distance measuring probe 2a3 are arranged in the probe assembly 2a, the base 4 is provided with a controller 5, the camera 2a1, the eddy current coil 2a2 and the distance measuring probe 2a3 are all electrically connected with the controller 5 through cables 6, the turntable 3c is also provided with a drive system, which is also electrically connected to the controller 5 via a cable 6.

As further shown in fig. 1, the installation process of the ball-type assembly 10 is as follows:

firstly, a spherical component 10 to be measured is placed on a positioning seat 3a, then the spherical component 10 is lifted upwards by a lifting mechanism 3b, so that the distance between a probe component 2a and the surface of the spherical component 10 is measured by the telescopic eddy current probe 2, when the distances between the probe components 2a and the surface of the spherical component 10 are equal, the center of a sphere of the spherical component 10 is coincided with the center of a circle of the support 1, and at the moment, the lifting mechanism 3b is locked to realize the positioning and installation of the spherical component 10. Finally driven by the linear motor 2 c. The probe assembly 2a extends and retracts outwards, approaches the surface of the ball-type assembly 10, and is locked after reaching a set distance value.

As shown in fig. 1 again, the detection process of the eddy current inspection apparatus is as follows:

after the spherical component 10 to be tested is placed on the rotating shaft, positioning lines a and positioning points b which are in number corresponding to the probe components 2a are marked on the surface of the spherical component 10, and the positioning points b are in one-to-one correspondence with the probe components 2a and are used for marking the position on the spherical component 10. After the marking is completed, the rotary table 3c drives the ball-type assembly 10 to rotate, and when the camera 2a1 on the probe assembly 2a captures an image of the positioning point b, the system coordinates are reset, the measurement is started, the measurement starts with the positioning point b as a starting point (zero point), the relative position of the probe assembly 2a on the surface of the ball-type assembly 10 is calculated by counting the rotation speed and time of the rotating shaft 3, and the eddy current detection value is recorded.

In this embodiment, the working coordinates of the spherical component 10 are longitude and latitude coordinates of the earth, the positioning line a is a 0-degree longitude line, the positioning point b on the positioning line a has a certain latitude value, and the spherical component 10 can be positioned on the surface through the longitude and latitude.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.