Magnetic particle testing equipment and method for cylindrical end surface

Abstract

The present invention provides a magnetic particle inspection device and method for cylindrical end faces, relating to the technical field of magnetic particle inspection of cylindrical end faces. The device comprises a frame body and a connecting structure, wherein a frame assembly is mounted on one end of the frame body, a demagnetization device is mounted on the lower end of the frame assembly, a magnetizing plate is mounted on the upper surface of the frame body, a lifting device is mounted on the upper surface of the magnetizing plate, a top plate is mounted on the output end of the lifting device, two cross plates are mounted inside the lower end of the frame body, a bottom plate is mounted inside the lower end of the frame body, a magnetizing device is mounted inside the frame body, magnetizing devices are mounted on both ends of the magnetizing device, and a detection structure is provided on the lower surface of the top plate. The present invention facilitates magnetic particle inspection of cylindrical end faces, avoids omissions of cylindrical end faces during magnetic particle inspection, and facilitates comprehensive inspection of the entire cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic powder detection of cylindrical end faces, and in particular to magnetic powder detection equipment and a method for cylindrical end faces. Background Art

[0002] Magnetic particle testing of cylindrical end faces is a method commonly used to detect surface defects on cylindrical workpieces, particularly for detecting surface and near-surface cracks, scratches, corrosion, and other defects in metal materials. This method uses the distribution characteristics of magnetic powder under the influence of a magnetic field to reveal the location and shape of defects.

[0003] In daily use, the inventors found that the magnetic particle inspection in the existing technology is mainly suitable for detecting defects on the surface or near the surface of the material. If the defect is located inside or deep in the cylinder, the magnetic particle cannot be effectively detected. Moreover, the surface of the cylinder needs to be relatively flat or at least have a regular curvature, otherwise it is difficult to apply the magnetic field evenly, resulting in inaccurate detection. Magnetic particle inspection can only show the location of the defect, but it is more difficult to judge the details such as the direction and shape of the defect, which may need to be confirmed in combination with other detection methods. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a magnetic particle detection device and method for the end face of a cylinder.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a magnetic powder detection device for the end face of a cylinder, comprising a frame body and a connecting structure, a frame assembly is installed at one end of the frame body, a demagnetization device is installed at the lower end of the frame assembly, a magnetization plate is installed on the upper surface of the frame body, a lifting device is installed on the upper surface of the magnetization plate, a top plate is installed at the output end of the lifting device, two cross plates are installed inside the lower end of the frame body, a bottom plate is installed inside the lower end of the frame body, a magnetization device is installed inside the frame body, magnetization devices are installed at both ends of the magnetization device, and a detection structure is provided on the lower surface of the top plate.

[0006] Preferably, the detection structure includes a fixed seat, which is fixedly connected to the top plate, and a connecting seat is installed on the side of the fixed seat away from the top plate, and the lower end of the connecting seat is fixedly connected to the upper end face yoke, and two bracket plates are installed inside the frame body, and the two bracket plates are installed on the side away from each other, and a connecting device is installed at the lower end of the connecting device, and an end face camera is installed on the lower surface of the moving device, and a lower end face yoke is arranged between the two horizontal plates, and the lower end face yoke is connected to the horizontal plate by means of a connecting structure, and two driving wheel structures are installed on the upper surface of the bottom plate, and two bases are installed on the upper surface of the bottom plate, and an adjusting device is installed on the upper end of the base, and a transmission device is installed on the surface of the adjusting device, and a side end face yoke is installed on the upper end of the transmission device, and the driving wheel structure is connected to the transmission device. By adopting this preferred solution, when it is necessary to detect the magnetic powder on the end face of the cylinder, the cylinder with magnetic powder is placed among the upper end face yoke, the lower end face yoke and the two side end face yokes, and then the upper end face yoke, the lower end face yoke and the two side end face yokes are adjusted, the transmission device is driven to operate by operating the active wheel structure, the transmission device drives the adjustment device to move, and then the side end face yoke is adjusted to make the side end face yoke close to the cylinder, and then the lifting device is controlled to operate, the lifting device drives the top plate to move, the top plate drives the fixed seat to move, the fixed seat drives the upper end face yoke close to the cylinder, and then the connection device and the moving device are adjusted to adjust the end face camera so that the end face camera monitors the cylinder, and then the upper end face yoke, the lower end face yoke and the two side end face yokes monitor the cylinder.

[0007] The top end of the sliding plate is fixedly provided with a screw bolt, and the bottom end of the sliding plate is fixedly provided with a screw bolt, and the bottom end of the sliding plate is screwed to the bottom end of the fixing plate.

[0008] Preferably, the cross-sections of the fixed rod and the sliding rod are both circular, and the fixed rod and the sliding rod are both stainless steel rods. By adopting this preferred solution, the fixed rod and the sliding rod can limit the shell when the shell moves, thereby preventing the shell and the ultraviolet lamp from rotating when being adjusted.

[0009] Preferably, the arc surface of the threaded ring is provided with a plurality of notches, and the plurality of notches are evenly distributed on the threaded ring. By adopting this preferred solution, the notches can increase the friction between the hand and the threaded ring, thereby avoiding slipping when rotating the threaded ring.

[0010] Preferably, the lower surfaces of the two transverse plates are provided with a connecting structure, and the connecting structure includes two connecting frames, and the two connecting frames are fixedly connected to the two transverse plates respectively, and the lower surfaces of the connecting frames are slidably connected with connecting blocks, and the two connecting blocks are fixedly connected with a fixing plate on the side close to each other, and the fixing plate is fixedly connected to the lower end face magnetic yoke, and the inner wall of the connecting frame is slidably connected with a plug rod, and the plug rod is slidably connected to the connecting block. By adopting this preferred solution, when the lower end face magnetic yoke needs to be installed, the lower end face magnetic yoke is pulled to move, and then the lower end face magnetic yoke drives the fixing plate to move, and the fixing plate drives the connecting block to move, and then the connecting block is aligned with the connecting frame, and then the connecting block is inserted into the connecting frame, and then the plug rod is pulled to move, and the plug rod is inserted into the connecting block and the connecting frame for fixing.

[0011] Preferably, the arc surface of the insertion rod is covered with a spring, and the two ends of the spring are fixedly connected to the insertion rod and the connecting frame respectively. By adopting this preferred solution, when the insertion rod needs to be inserted for fixation, the insertion rod is pulled to drive the spring to stretch, and then the insertion rod is aligned with the connecting block and the connecting block, and then the insertion rod spring is loosened to contract and drive the insertion rod to be fixed.

[0012] Preferably, the end of the insertion rod away from the connecting frame is fixedly connected to a connecting rod, and the cross-section of the connecting rod is "U"-shaped. By adopting this preferred solution, the connecting rod can be directly pulled when the insertion rod needs to be pulled, and the connecting rod drives the two insertion rods to move, and the connecting rod makes it more convenient to move the insertion rod.

[0013] Preferably, the arc surface of the connecting rod is fixedly connected with an anti-slip sleeve, and the anti-slip sleeve is a rubber sleeve. By adopting this preferred solution, the anti-slip sleeve can increase the friction between the hand and the connecting rod, avoiding sliding when pulling the connecting rod.

[0014] Preferably, the method includes the following steps: S1. When it is necessary to detect the magnetic powder on the end face of the cylinder, the cylinder with the magnetic powder is placed among the upper end face yoke, the lower end face yoke and the two side end face yokes, and then the upper end face yoke, the lower end face yoke and the two side end face yokes are adjusted, the transmission device is driven to operate by operating the active wheel structure, the transmission device drives the adjustment device to move, and then the side end face yoke is adjusted to make the side end face yoke close to the cylinder, and then the lifting device is controlled to operate, the lifting device drives the top plate to move, the top plate drives the fixed seat to move, the fixed seat drives the upper end face yoke close to the cylinder, and then the connection device and the moving device are adjusted to adjust the end face camera so that the end face camera monitors the cylinder, and then the upper end face yoke, the lower end face yoke and the two side end face yokes detect the cylinder, and after the detection, the ultraviolet lamp is turned on for further detection.

[0015] S2. When the ultraviolet lamp needs to be adjusted, the threaded ring is rotated to drive the screw to move, the screw slides on the inner wall of the sleeve rod, the screw drives the connecting plate to move, the connecting plate drives the outer shell and the ultraviolet lamp to move, and then the outer shell drives the connecting plate to move, the connecting plate drives the sliding rod to move, and the sliding rod moves on the inner wall of the fixed rod, so that the ultraviolet lamp can be easily adjusted.

[0016] S3. When the lower end yoke needs to be installed, pull the lower end yoke to move, and then the lower end yoke drives the fixed plate to move, the fixed plate drives the connecting block to move, and then align the connecting block with the connecting frame, and then insert the connecting block into the connecting frame, and then pull the connecting rod to move, the connecting rod drives the insertion rod to move, the insertion rod drives the spring to stretch, and then align the insertion rod with the connecting frame and the connecting block, and then release the connecting rod, the spring contracts and drives the insertion rod to be inserted and fixed.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are:

[0018] 1. In the present invention, a detection structure is provided. In the prior art, magnetic particle testing is mainly suitable for detecting defects on the surface of materials or near the surface. If the defects are located inside or deep in the cylinder, magnetic particles cannot be effectively detected. In addition, the surface of the cylinder needs to be relatively flat or at least have a regular curvature. Otherwise, it is difficult to apply the magnetic field evenly, resulting in inaccurate detection. Magnetic particle testing can only display the location of the defect, but it is difficult to judge the details such as the direction and shape of the defect, which may need to be confirmed in combination with other detection methods. The present device can facilitate magnetic particle testing of the end face of the cylinder, avoid omissions of the end face of the cylinder during magnetic particle testing, and facilitate comprehensive testing of the entire cylinder.

[0019] 2. In the present invention, by providing an ultraviolet irradiation structure, it is achieved that not only ultraviolet detection can be continued after the cylindrical magnetic particle detection, but also the ultraviolet lamp can be adjusted conveniently.

[0020] 3. In the present invention, by providing a connection structure, the lower end surface yoke can be easily installed and disassembled, and the lower end surface yoke can be easily inspected and repaired at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention provides a schematic diagram of a magnetic particle inspection device and method for cylindrical end faces;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of a magnetic particle inspection device and method for cylindrical end faces proposed by the present invention;

[0023] Figure 3 A schematic diagram of the detection structure of the magnetic particle detection device and method for the end face of a cylinder proposed by the present invention;

[0024] Figure 4 The present invention proposes a magnetic particle detection device and method for cylindrical end faces Figure 3 Schematic diagram of the side structure;

[0025] Figure 5 A schematic diagram of the ultraviolet irradiation structure of the magnetic particle inspection device and method for the end face of a cylinder proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the connection structure of the magnetic particle detection device and method for the end face of a cylinder proposed by the present invention;

[0027] Figure 7 The present invention proposes a magnetic particle detection device and method for cylindrical end faces Figure 6 Enlarged view of point A.

[0028] Legend: 1. Frame assembly; 2. Demagnetization device; 3. Frame body; 4. Magnetic attraction plate; 5. Lifting device; 6. Top plate; 7. Detection structure; 701. Driving wheel structure; 702. Side end face magnetic yoke; 703. Upper end face magnetic yoke; 704. Transmission device; 705. Base; 706. Connecting seat; 707. End face camera; 708. Moving device; 709. Connecting device; 710. Bracket plate; 711. Lower end face magnetic yoke; 712. Adjusting device; 713. Fixing seat. 8. UV irradiation structure; 801. Sleeve rod; 802. Threaded ring; 803. Notch; 804. UV lamp; 805. Connecting plate; 806. Screw; 807. Connecting plate; 808. Fixed rod; 809. Housing; 810. Sliding rod; 9. Connecting structure; 91. Connecting rod; 92. Fixed plate; 93. Connecting frame; 94. Connecting block; 95. Anti-slip sleeve; 96. Insert rod; 97. Spring; 10. Magnetizing device; 11. Magnetizing device; 12. Horizontal plate; 13. Bottom plate. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Example 1, as Figure 1-7 As shown, the present invention provides a magnetic powder detection device and method for the end face of a cylinder, including a frame body 3 and a connecting structure 9, a frame assembly 1 is installed at one end of the frame body 3, a demagnetization device 2 is installed at the lower end of the frame assembly 1, a magnetizing plate 4 is installed on the upper surface of the frame body 3, a lifting device 5 is installed on the upper surface of the magnetizing plate 4, a top plate 6 is installed on the output end of the lifting device 5, two cross plates 12 are installed inside the lower end of the frame body 3, a bottom plate 13 is installed inside the lower end of the frame body 3, a magnetizing device 11 is installed inside the frame body 3, magnetizing devices 10 are installed at both ends of the magnetizing device 11, a detection structure 7 is provided on the lower surface of the top plate 6, an ultraviolet irradiation structure 8 is provided on the lower surface of the top plate 6, and a connecting structure 9 is provided on the lower surfaces of the two cross plates 12.

[0032] The specific settings and functions of the detection structure 7, ultraviolet irradiation structure 8, and connection structure 9 are described in detail below.

[0033] like Figure 2 and Figure 3As shown, the detection structure 7 includes a fixed base 713, which is fixedly connected to the top plate 6. A connecting base 706 is installed on the side of the fixed base 713 away from the top plate 6. The lower end of the connecting base 706 is fixedly connected to the upper end surface magnetic yoke 703. Two bracket plates 710 are installed inside the frame body 3. The two bracket plates 710 are both installed with a connecting device 709 on the side away from each other. A moving device 708 is installed at the lower end of the connecting device 709. The lower surface of the moving device 708 is installed with an end surface camera 707. A lower end face magnetic yoke 711 is provided between the two horizontal plates 12, and the lower end face magnetic yoke 711 is connected to the horizontal plate 12 by means of a connecting structure 9. Two driving wheel structures 701 are installed on the upper surface of the bottom plate 13, and two bases 705 are installed on the upper surface of the bottom plate 13. An adjusting device 712 is installed on the upper end of the base 705, and a transmission device 704 is installed on the surface of the adjusting device 712. A side end face magnetic yoke 702 is installed on the upper end of the transmission device 704, and the driving wheel structure 701 is connected to the transmission device 704. When it is necessary to detect the magnetic powder on the end face of the cylinder, the cylinder with the magnetic powder is placed between the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702, and then the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702 are adjusted, and the driving wheel structure 701 drives the transmission device 704 to operate, and the transmission device 704 drives the adjustment device 712 to move, and then the side end face magnetic yoke 702 is adjusted so that the side end face magnetic yoke 702 is close to the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702. Near the cylinder, and then operate by controlling the lifting device 5, the lifting device 5 drives the top plate 6 to move, the top plate 6 drives the fixed seat 713 to move, the fixed seat 713 drives the upper end face yoke 703 close to the cylinder, and then adjusts the connection device 709 and the moving device 708, and then adjusts the end face camera 707, so that the end face camera 707 detects the cylinder, and then the upper end face yoke 703, the lower end face yoke 711 and the two side end face yokes 702 monitor the cylinder.

[0034] The entire detection structure 77 has the effect of facilitating magnetic particle detection of the end face of the cylinder, avoiding omission of the end face of the cylinder during magnetic particle detection, and facilitating comprehensive detection of the entire cylinder.

[0035] like Figure 1 and Figure 4As shown, the ultraviolet irradiation structure 8 includes a sleeve rod 801, which is fixedly connected to the top plate 6, and the inner wall of the sleeve rod 801 is slidably connected to a screw rod 806, the lower end of the sleeve rod 801 is rotatably connected to a threaded ring 802, and the threaded ring 802 is threadedly connected to the screw rod 806, and the lower end of the screw rod 806 is fixedly connected to a connecting plate 807, and one end of the connecting plate 807 away from the screw rod 806 is fixedly connected to a shell 809, and an ultraviolet lamp 804 is installed inside the shell 809. Two fixed rods 808 are fixedly connected to the lower surface of the top plate 6, and the inner wall of the fixed rod 808 is slidably connected to a slide rod 810, and the lower end of the slide rod 810 is fixedly connected to a connecting plate 805, which is fixedly connected to the shell 809. When the ultraviolet lamp 804 needs to be adjusted, the threaded ring 802 is rotated to drive the screw rod 806 to move, and the screw 806 slides on the inner wall of the sleeve rod 801, and the screw 806 drives the connecting plate 807 to move. The plate 807 moves, the connecting plate 807 drives the shell 809 and the ultraviolet lamp 804 to move, and then the shell 809 drives the connecting plate 805 to move, and the connecting plate 805 drives the sliding rod 810 to move, and the sliding rod 810 moves on the inner wall of the fixed rod 808, so that the ultraviolet lamp 804 can be easily adjusted. The cross-sections of the fixed rod 808 and the sliding rod 810 are both circular, and the fixed rod 808 and the sliding rod 810 are both stainless steel rods. When the shell 809 moves, the fixed rod 808 and the sliding rod 810 can limit the shell 809 to prevent the shell 809 and the ultraviolet lamp 804 from rotating when being adjusted. The arc surface of the threaded ring 802 is provided with a plurality of notches 803, and the plurality of notches 803 are evenly distributed on the threaded ring 802. The notches 803 can increase the friction between the hand and the threaded ring 802 to prevent sliding when the threaded ring 802 is rotated.

[0036] The entire ultraviolet irradiation structure 88 has the effect of not only facilitating the continuation of ultraviolet detection after the cylindrical magnetic particle detection, but also facilitating the adjustment of the ultraviolet lamp 804.

[0037] like Figure 5 and Figure 6As shown, the connection structure 9 includes two connection frames 93, and the two connection frames 93 are fixedly connected to the two cross plates 12 respectively. The lower surface of the connection frame 93 is slidably connected with a connection block 94, and the two connection blocks 94 are fixedly connected to a fixed plate 92 on one side close to each other. The fixed plate 92 is fixedly connected to the lower end magnetic yoke, and the inner wall of the connection frame 93 is slidably connected with a plug 96, and the plug 96 is slidably connected to the connection block 94. When the lower end magnetic yoke 711 needs to be installed, the lower end magnetic yoke 711 is pulled to move, and then the lower end magnetic yoke 711 drives the fixed plate 92 to move, and the fixed plate 92 drives the connection block 94 to move, and then the connection block 94 is aligned with the connection frame 93, and then the connection block 94 is inserted into the connection frame 93, and then the plug 96 is pulled to move, and the plug 96 is inserted into the connection block 94 and the connection frame 93 for fixation, and the circular plug 96 The arc surface is covered with a spring 97, and the two ends of the spring 97 are fixedly connected to the insertion rod 96 and the connecting frame 93 respectively. When the insertion rod 96 needs to be inserted for fixing, the insertion rod 96 is pulled to drive the spring 97 to stretch, and then the insertion rod 96 is aligned with the connecting block 94 and the connecting block 94, and then the insertion rod 96 is released. The spring 97 contracts and drives the insertion rod 96 to be inserted and fixed. The end of the insertion rod 96 away from the connecting frame 93 is fixedly connected to the connecting rod 91. The cross-section of the connecting rod 91 is "U"-shaped. When it is necessary to pull the insertion rod 96, the connecting rod 91 can be directly pulled, and the connecting rod 91 drives the two insertion rods 96 to move. The connecting rod 91 makes it more convenient to move the insertion rod 96. The arc surface of the connecting rod 91 is fixedly connected to the anti-slip cover 95, which is a rubber cover. The anti-slip cover 95 can increase the friction between the hand and the connecting rod 91 to avoid sliding when pulling the connecting rod 91.

[0038] The entire connection structure 9 has the effect of facilitating installation and removal of the lower end surface magnetic yoke 711 and conveniently performing maintenance on the lower end surface magnetic yoke 711 at any time.

[0039] S1. When it is necessary to detect the magnetic powder on the end face of the cylinder, the cylinder with the magnetic powder is placed between the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702, and then the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702 are adjusted. The driving wheel structure 701 drives the transmission device 704 to operate, and the transmission device 704 drives the adjustment device 712 to move, and then the side end face magnetic yoke 702 is adjusted to make the side end face magnetic yoke 702 close to the cylinder, and then the control wheel structure 701 is used to control the side end face magnetic yoke 702. The lifting device 5 is operated, the lifting device 5 drives the top plate 6 to move, the top plate 6 drives the fixed seat 713 to move, the fixed seat 713 drives the upper end face yoke 703 close to the cylinder, and then adjusts the connection device 709 and the moving device 708 to adjust the end face camera 707, so that the end face camera 707 detects the cylinder, and then the upper end face yoke 703, the lower end face yoke 711 and the two side end face yokes 702 detect the cylinder, and after the detection, turn on the ultraviolet lamp 804 for further detection.

[0040] S2. When the ultraviolet lamp 804 needs to be adjusted, the threaded ring 802 is rotated to drive the screw 806 to move, the screw 806 slides on the inner wall of the sleeve rod 801, the screw 806 drives the connecting plate 807 to move, the connecting plate 807 drives the shell 809 and the ultraviolet lamp 804 to move, and then the shell 809 drives the connecting plate 805 to move, the connecting plate 805 drives the sliding rod 810 to move, and the sliding rod 810 moves on the inner wall of the fixed rod 808, so that the ultraviolet lamp 804 can be easily adjusted.

[0041] S3. When the lower end surface magnetic yoke 711 needs to be installed, pull the lower end surface magnetic yoke 711 to move, and then the lower end surface magnetic yoke 711 drives the fixed plate 92 to move, the fixed plate 92 drives the connecting block 94 to move, and then align the connecting block 94 with the connecting frame 93, and then insert the connecting block 94 into the connecting frame 93, and then pull the connecting rod 91 to move, the connecting rod 91 drives the insertion rod 96 to move, the insertion rod 96 drives the spring 97 to stretch, and then align the insertion rod 96 with the connecting frame 93 and the connecting block 94, and then release the connecting rod 91, the spring 97 contracts and drives the insertion rod 96 to be inserted and fixed.

[0042] The overall working principle is that when it is necessary to detect the magnetic powder on the end face of the cylinder, the cylinder with the magnetic powder is placed between the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702, and then the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702 are adjusted, and the driving wheel structure 701 is driven to drive the transmission device 704 to operate, and the transmission device 704 drives the adjustment device 712 to move, and then the side end face magnetic yokes 702 are adjusted so that the side end face magnetic powder is detected. The yoke 702 approaches the cylinder and then operates by controlling the lifting device 5. The lifting device 5 drives the top plate 6 to move, and the top plate 6 drives the fixed seat 713 to move. The fixed seat 713 drives the upper end face magnetic yoke 703 to approach the cylinder, and then adjusts the connection device 709 and the moving device 708, and then adjusts the end face camera 707 so that the end face camera 707 detects the cylinder, and then the upper end face magnetic yoke 703, the lower end face magnetic yoke 711 and the two side end face magnetic yokes 702 monitor the cylinder.

[0043] When the ultraviolet lamp 804 needs to be adjusted, the threaded ring 802 is rotated to drive the screw 806 to move, the screw 806 slides on the inner wall of the sleeve rod 801, the screw 806 drives the connecting plate 807 to move, the connecting plate 807 drives the shell 809 and the ultraviolet lamp 804 to move, and then the shell 809 drives the connecting plate 805 to move, the connecting plate 805 drives the sliding rod 810 to move, and the sliding rod 810 moves on the inner wall of the fixed rod 808, so that the ultraviolet lamp 804 can be easily adjusted. When the shell 809 moves, the fixed rod 808 and the sliding rod 810 can limit the shell 809 to prevent the shell 809 and the ultraviolet lamp 804 from rotating when adjusting. The notch 803 can increase the friction between the hand and the threaded ring 802 to prevent sliding when the threaded ring 802 is rotated.

[0044] When the yoke 711 of the lower end surface needs to be installed, the yoke 711 of the lower end surface needs to be pulled to move, and then the yoke 711 of the lower end surface needs to be pulled to move, and then the fixing plate 92 of the lower end surface needs to be moved, and the fixing plate 92 drives the connecting block 94 to move, and then the connecting block 94 is aligned with the connecting frame 93, and then the connecting block 94 is inserted into the connecting frame 93, and then the insertion rod 96 is pulled to move, and the insertion rod 96 is inserted into the connecting block 94 and the connecting frame 93 for fixation. When the insertion rod 96 needs to be inserted for fixation, the insertion rod 96 is pulled to drive the spring 97 to stretch, and then the insertion rod 96 is aligned with the connecting block 94 and the connecting block 94, and then the insertion rod 96 is released and the spring 97 is contracted to drive the insertion rod 96 to be inserted and fixed. When the insertion rod 96 needs to be pulled, the connecting rod 91 can be directly pulled, and the connecting rod 91 drives the two insertion rods 96 to move. The connecting rod 91 makes it more convenient to move the insertion rod 96, and the anti-slip sleeve 95 can increase the friction between the hand and the connecting rod 91 to avoid sliding when the connecting rod 91 is pulled.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A magnetic particle inspection device for cylindrical end faces, comprising a frame body (3) and a connecting structure (9), characterized in that: A frame assembly (1) is installed at one end of the frame body (3), a demagnetization device (2) is installed at the lower end of the frame assembly (1), a magnetizing plate (4) is installed on the upper surface of the frame body (3), a lifting device (5) is installed on the upper surface of the magnetizing plate (4), a top plate (6) is installed at the output end of the lifting device (5), two horizontal plates (12) are installed inside the lower end of the frame body (3), a bottom plate (13) is installed inside the lower end of the frame body (3), and the frame assembly (1) is installed at the lower end of the frame body (3). A magnetizing device (11) is installed inside the frame body (3), and magnetizing devices (10) are installed at both ends of the magnetizing device (11). A detection structure (7) is provided on the lower surface of the top plate (6), and the detection structure (7) includes a fixing seat (713), and the fixing seat (713) is fixedly connected to the top plate (6). A connecting seat (706) is installed on the side of the fixing seat (713) away from the top plate (6), and the lower end of the connecting seat (706) is fixedly connected to the upper end surface magnetic yoke (706). 3), two bracket plates (710) are installed inside the frame body (3), and a connecting device (709) is installed on the side away from each other of the two bracket plates (710), and a moving device (708) is installed at the lower end of the connecting device (709), and an end face camera (707) is installed on the lower surface of the moving device (708). A lower end face yoke (711) is provided between the two horizontal plates (12), and the lower end face yoke (711) is connected to the horizontal plate (12) by means of a connecting structure (9). 2) connection, two driving wheel structures (701) are installed on the upper surface of the bottom plate (13), two bases (705) are installed on the upper surface of the bottom plate (13), an adjustment device (712) is installed on the upper end of the base (705), a transmission device (704) is installed on the surface of the adjustment device (712), a side end surface magnetic yoke (702) is installed on the upper end of the transmission device (704), and the driving wheel structure (701) is connected to the transmission device (704); The lower surface of the top plate (6) is provided with an ultraviolet irradiation structure (8), and the ultraviolet irradiation structure (8) includes a sleeve rod (801), the sleeve rod (801) is fixedly connected to the top plate (6), the inner wall of the sleeve rod (801) is slidably connected to a screw rod (806), the lower end of the sleeve rod (801) is rotatably connected to a threaded ring (802), the threaded ring (802) is threadedly connected to the screw rod (806), and the lower end of the screw rod (806) is fixedly connected to a connecting plate (807). One end of the connecting plate (807) away from the screw rod (806) is fixedly connected to a housing (809), an ultraviolet lamp (804) is installed inside the housing (809), two fixed rods (808) are fixedly connected to the lower surface of the top plate (6), the inner wall of the fixed rod (808) is slidably connected to a sliding rod (810), the lower end of the sliding rod (810) is fixedly connected to a connecting plate (805), and the connecting plate (805) is fixedly connected to the housing (809); The lower surfaces of the two transverse plates (12) are provided with a connecting structure (9), and the connecting structure (9) includes two connecting frames (93), a spring (97) and a connecting rod (91). The two connecting frames (93) are fixedly connected to the two transverse plates (12) respectively. The lower surfaces of the connecting frames (93) are slidably connected to connecting blocks (94). The two connecting blocks (94) are fixedly connected to a fixing plate (92) on the sides close to each other. The fixing plate (92) is fixedly connected to the lower end surface magnetic yoke. The inner wall of the connecting frame (93) is slidably connected to an insertion rod (96), and the insertion rod (96) is slidably connected to the connecting block (94).

2. A method for detecting the end face of a cylindrical object using a magnetic particle detection device according to claim 1, characterized in that: The steps include: S1. When it is necessary to detect the magnetic powder on the end face of the cylinder, the cylinder with the magnetic powder is placed between the upper end face magnetic yoke (703), the lower end face magnetic yoke (711) and the two side end face magnetic yokes (702), and then the upper end face magnetic yoke (703), the lower end face magnetic yoke (711) and the two side end face magnetic yokes (702) are adjusted. The driving wheel structure (701) is driven to drive the transmission device (704) to operate, and the transmission device (704) drives the adjustment device (712) to move, and then the side end face magnetic yoke (702) is adjusted so that the side end face magnetic yoke (702) is close to the cylinder, and then the lifting and lowering are controlled. The device (5) is in operation, the lifting device (5) drives the top plate (6) to move, the top plate (6) drives the fixed seat (713) to move, the fixed seat (713) drives the upper end surface yoke (703) to approach the cylinder, and then the connection device (709) and the moving device (708) are adjusted, and then the end surface camera (707) is adjusted, so that the end surface camera (707) detects the cylinder, and then the upper end surface yoke (703), the lower end surface yoke (711) and the two side end surface yokes (702) detect the cylinder, and after the detection, the ultraviolet lamp (804) is turned on for further detection; S2. When the ultraviolet lamp (804) needs to be adjusted, the threaded ring (802) is rotated to drive the screw (806) to move, the screw (806) slides on the inner wall of the sleeve rod (801), the screw (806) drives the connecting plate (807) to move, the connecting plate (807) drives the housing (809) and the ultraviolet lamp (804) to move, and then the housing (809) drives the connecting plate (805) to move, the connecting plate (805) drives the sliding rod (810) to move, and the sliding rod (810) moves on the inner wall of the fixed rod (808), thereby facilitating the adjustment of the ultraviolet lamp (804); S3. When the lower end surface magnetic yoke (711) needs to be installed, the lower end surface magnetic yoke (711) is pulled to move, and then the lower end surface magnetic yoke (711) drives the fixed plate (92) to move, and the fixed plate (92) drives the connecting block (94) to move, and then the connecting block (94) is aligned with the connecting frame (93), and then the connecting block (94) is inserted into the connecting frame (93), and then the connecting rod (91) is pulled to move, and the connecting rod (91) drives the insertion rod (96) to move, and the insertion rod (96) drives the spring (97) to stretch, and then the insertion rod (96) is aligned with the connecting frame (93) and the connecting block (94), and then the connecting rod (91) is loosened, and the spring (97) contracts and drives the insertion rod (96) to be inserted and fixed.

3. The magnetic particle detection equipment according to claim 1, characterized in that: The cross-sections of the fixed rod (808) and the sliding rod (810) are both circular, and the fixed rod (808) and the sliding rod (810) are both stainless steel rods.

4. The magnetic particle detection equipment according to claim 1, characterized in that: The arc surface of the threaded ring (802) is provided with a plurality of notches (803), and the plurality of notches (803) are evenly distributed on the threaded ring (802).

5. The magnetic particle detection equipment according to claim 1, characterized in that: The arc surface of the insertion rod (96) is sleeved with a spring (97), and the two ends of the spring (97) are fixedly connected to the insertion rod (96) and the connecting frame (93) respectively.

6. The magnetic particle detection equipment according to claim 1, characterized in that: One end of the insertion rod (96) away from the connection frame (93) is fixedly connected to a connecting rod (91), and the cross-section of the connecting rod (91) is "U"-shaped.

7. The magnetic particle detection equipment according to claim 6, characterized in that: The arc surface of the connecting rod (91) is fixedly connected to an anti-slip sleeve (95), and the anti-slip sleeve (95) is a rubber sleeve.

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