CN-224203123-U - Magnetic particle inspection detection device

CN224203123UCN 224203123 UCN224203123 UCN 224203123UCN-224203123-U

Abstract

The magnetic powder inspection detection device provided by the utility model sequentially conveys the workpiece to the magnetizing mechanism, the spraying mechanism, the visual detection mechanism and the demagnetizing mechanism for at least one time through the conveying mechanism, so that the automatic detection of the magnetic powder inspection flow of the workpiece is realized, the detection efficiency is effectively improved, and meanwhile, the first visual detection mechanism, the second visual detection mechanism and the third visual detection mechanism are arranged to acquire the image of the surface of the workpiece after spraying the magnetic suspension, so that the image containing magnetic marks can be screened through the acquired image, and the workpiece containing defects can be screened. Compared with manual detection, the visual detection screening efficiency is high for workpieces with tiny cracks, the visual recognition capability is high, the labor cost can be effectively reduced, and the workpiece screening efficiency and then the workpiece screening quality are improved.

Inventors

LIU ZHI
LIU YANQUAN
TAN YONG
YANG DAOLIN
XIE XIAOGANG

Assignees

广州锐谱检测有限公司

Dates

Publication Date: 20260505
Application Date: 20250530

Claims (10)

1. The magnetic powder inspection and detection device is characterized by comprising a frame, wherein a conveying mechanism is arranged above the frame, and a magnetizing mechanism for magnetizing the surface of a workpiece, a spraying mechanism for spraying magnetic powder suspension, a visual detection mechanism for acquiring images of the surface of the workpiece after spraying the magnetic suspension for magnetic mark detection and a demagnetizing mechanism for demagnetizing the workpiece are sequentially arranged above the conveying mechanism along the conveying direction; The visual detection mechanism comprises a first visual detection mechanism arranged on one side of the conveying mechanism along the conveying direction, a second visual detection mechanism arranged on the other side of the conveying mechanism along the conveying direction, and a third visual detection mechanism arranged right above the conveying mechanism along the conveying direction; The first visual detection mechanism comprises a first camera for acquiring magnetic mark images of the front side or the left side of the workpiece and a first annular light source arranged right below a lens of the first camera, the second visual detection mechanism comprises a second camera for acquiring magnetic mark images of the rear side or the right side of the workpiece and a second annular light source positioned right in front of the lens of the second camera, and the third visual detection mechanism comprises a third camera for acquiring magnetic mark images of the upper side or the lower side of the workpiece and a third annular light source positioned right in front of the lens of the third camera.
2. The magnetic particle inspection device according to claim 1, wherein a plurality of first support rods are fixedly arranged on the frame, the first support rods are located on one side of the conveying mechanism, a support is arranged above the first support rods, the spraying mechanism, a first lifting slide rod and a third camera are sequentially arranged on the support along the conveying direction, the first lifting slide rod is in sliding connection with a first fixing seat, the second camera and the second annular light source are both arranged on the first fixing seat, and the third annular light source is connected with the first support rods.
3. A magnetic particle inspection apparatus according to claim 2, wherein the third camera is connected to the support by a lifting assembly, the lifting assembly comprising a lifting cylinder mounted on the support, a first piston rod and a lifting seat, the lifting cylinder being connected to the lifting seat by the first piston rod, the third camera being mounted on the lifting seat.
4. The magnetic particle inspection device according to claim 2, wherein the second camera is connected to the first fixing base through a first moving base, a first sliding rail arranged along a direction approaching to or separating from the conveying mechanism is arranged on the first fixing base, and the first moving base is slidably connected with the first sliding rail.
5. The magnetic particle inspection device according to claim 1, wherein a second lifting slide bar is fixedly arranged on the frame, the second lifting slide bar is located at one side of the conveying mechanism and is in sliding connection with a second fixing seat, the first camera is connected with the second fixing seat through a second movable seat, the first annular light source is arranged at one side of the second fixing seat, a second sliding rail which is arranged along the direction close to or far away from the conveying mechanism is arranged on the second fixing seat, and the second movable seat is in sliding connection with the second sliding rail.
6. A magnetic particle inspection apparatus according to claim 2, wherein the support is provided with an audible and visual alarm for alerting when a defective workpiece is detected.
7. The magnetic particle inspection device according to claim 1, wherein the first annular light source, the second annular light source and the third annular light source comprise a lamp body, an annular sheet-shaped PCB is arranged in the lamp body, and a plurality of LED white light lamp beads and LED ultraviolet light lamp beads are arranged on the annular sheet-shaped PCB in a staggered manner.
8. A magnetic particle inspection device according to claim 1, wherein the spraying mechanism comprises a liquid storage tank filled with magnetic particle suspension, a plurality of liquid outlet pipes are communicated with the liquid storage tank, and a spray head is fixedly communicated with the bottom ends of the liquid outlet pipes.
9. The magnetic particle inspection device according to claim 1, wherein the conveying mechanism comprises a conveying frame and a conveying belt arranged on the conveying frame, a motor for driving the conveying belt to rotate is arranged at one end of the conveying frame, and a plurality of clamping seats for fixing and placing workpieces are equidistantly arranged on the conveying belt.
10. A magnetic particle inspection apparatus according to claim 1, wherein the demagnetizing mechanism is a door-shaped demagnetizer, the door-shaped demagnetizer is disposed above the conveying mechanism, and the conveying mechanism penetrates through an inlet end of the door-shaped demagnetizer and exits through an outlet end of the door-shaped demagnetizer.

Description

Magnetic particle inspection detection device Technical Field The utility model relates to the technical field of magnetic particle inspection, in particular to a magnetic particle inspection detection device. Background The magnetic powder inspection is a nondestructive inspection method for inspecting surface or near-surface defects by utilizing magnetization characteristics of ferromagnetic materials. When the ferromagnetic workpiece is magnetized, if the surface or the near surface has defects such as cracks, air holes and the like, the magnetic permeability of the defect is lower than that of surrounding materials, so that magnetic force lines are distorted, and part of the magnetic force lines can escape from the surface of the workpiece to form a leakage magnetic field. After the surface of the workpiece is sprayed, the magnetic powder is adsorbed by the leakage magnetic field, and macroscopic magnetic marks are formed at the defect, so that the shape magnetic suspension, the size and the position of the magnetic marks directly reflect the characteristics of the defect. Currently, for magnetized workpieces sprayed with magnetic suspension, the experience of operators is often relied on, and the workpieces with magnetic mark defects are screened out through manual observation. The detection speed of manual screening is limited by the proficiency of personnel, and multiple surfaces of a workpiece need to be repeatedly observed and screened, so that the screening efficiency of the defects of the workpiece is low. Meanwhile, the workpiece with tiny cracks is poor in visual recognition capability, fatigue operation is easy to cause due to long-time manual detection, misjudgment risks are further aggravated, and screening quality is poor. Therefore, in order to improve the screening efficiency and quality of the workpiece during the magnetic powder inspection, it is necessary to provide a novel magnetic powder inspection device. Disclosure of utility model Based on the technical problems of low efficiency and poor inspection quality in the defect detection of a formed magnetized workpiece by manpower in the prior art, the utility model provides a magnetic powder inspection detection device. A magnetic particle inspection device comprises a frame, wherein a conveying mechanism is arranged above the frame, a magnetizing mechanism for magnetizing the surface of a workpiece, a spraying mechanism for spraying magnetic particle suspension, a visual inspection mechanism for acquiring images of the surface of the workpiece after spraying the magnetic suspension and a demagnetizing mechanism for demagnetizing the workpiece are sequentially arranged above the conveying mechanism along the conveying direction, the visual inspection mechanism comprises a first visual inspection mechanism arranged on one side of the conveying mechanism along the conveying direction, a second visual inspection mechanism arranged on the other side of the conveying mechanism along the conveying direction and a third visual inspection mechanism arranged right above the conveying mechanism along the conveying direction, the first visual inspection mechanism comprises a first camera for acquiring images of the front side or the left side of the workpiece and a first annular light source arranged right below a lens of the first camera, the second visual inspection mechanism comprises a second camera for acquiring images of the rear side or the right side of the workpiece and a second annular light source arranged right in front of the lens of the second camera, and the third visual inspection mechanism comprises a third camera for acquiring images of the front side or the right side of the workpiece and the third camera. Further, a plurality of first support rods are fixedly arranged on the frame, the first support rods are located on one side of the conveying mechanism, a support is arranged above the first support rods, the spraying mechanism, a first lifting slide rod and a third camera are sequentially arranged on the support along the conveying direction, the first lifting slide rod is in sliding connection with a first fixing seat, the second camera and the second annular light source are both arranged on the first fixing seat, and the third annular light source is connected with the first support rods. Further, the third camera is connected with the bracket through a lifting assembly, the lifting assembly comprises a lifting cylinder, a first piston rod and a lifting seat, the lifting cylinder is installed on the bracket and connected with the lifting seat through the first piston rod, and the third camera is arranged on the lifting seat; Further, the second camera is connected with the first fixing seat through a first movable seat, a first sliding rail which is arranged along the direction close to or far away from the conveying mechanism is arranged on the first fixing seat, and the first movable seat is in sliding connection with t