Multifunctional magnetic particle flaw detector

Abstract

The utility model relates to the field of magnetic particle flaw detector, concretely relates to a multifunctional magnetic particle flaw detector, including the platform, both sides of platform top are all fixedly connected with the supporting plate, and the opposite side between two supporting plates is fixedly connected with the transverse board, the bottom fixed mounting of transverse board has electric slide rail, and the mobile end fixed mounting of electric slide rail has the flaw detector body, the left side fixed mounting of platform top has the rotating mechanism, and the bottom fixed mounting of platform has the bottom plate through the support, the top fixed mounting of bottom plate has the liquid storage tank, and the top fixed mounting of one side of liquid storage tank has the diaphragm pump. The utility model discloses through the screw rod, threaded block and connecting rod drive sliding block to move, and sliding block drives the translation of the spray head, realizes even spraying to work piece, improves the accuracy of detection, can carry out the rotational positioning to work piece, and the multiple faces of work piece are observed and detected conveniently for staff, improve the practicability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of magnetic particle flaw detectors, and specifically to a multifunctional magnetic particle flaw detector. Background Technology

[0002] Magnetic particle testing utilizes the interaction between the leakage magnetic field at the defect site of the workpiece and the magnetic powder. It takes advantage of the difference in magnetic permeability between the surface and near-surface defects (such as cracks, inclusions, hairline cracks, etc.) of steel products and the magnetic permeability of steel. After magnetization, the magnetic field at these material discontinuities will be distorted, forming a leakage magnetic field on the workpiece surface at the point of partial magnetic flux leakage. This attracts magnetic powder to form magnetic powder accumulation at the defect site—magnetic traces. Under appropriate lighting conditions, the location and shape of the defect are revealed. By observing and interpreting these magnetic powder accumulations, magnetic particle testing is achieved.

[0003] A search revealed a multifunctional magnetic particle flaw detector with announcement number CN219496248U. The detector includes a base with two support rods at the top and a housing between them. An adjustment assembly is located inside the housing, comprising a second connecting block and a first connecting block. Two magnetic heads are located at the bottom of the housing, with their tops penetrating the housing and connecting to the first and second connecting blocks respectively. This invention, through the adjustment assembly, allows the two magnetic heads to be adjusted to a suitable distance according to the size of the object being tested. Specifically, a cylinder drives a first rack plate to slide within a groove. The movement of the first rack plate drives a gear to rotate, which in turn drives a second rack plate to move in the opposite direction within the groove. This allows the magnetic particle flaw detector to be used with objects of different sizes without affecting the detection effect, thus enhancing its practicality. In the aforementioned patent, the magnetic suspension liquid is sprayed onto the workpiece manually, which cannot guarantee the uniformity of the spraying, easily affects the accuracy of the detection, and is not convenient for workers to detect and observe multiple surfaces of the workpiece, resulting in low practicality of the equipment.

[0004] Therefore, it is necessary to invent a multifunctional magnetic particle flaw detector to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multifunctional magnetic particle flaw detector that achieves uniform spraying by driving the nozzle to move at a constant speed, thereby solving the problem that the uniformity of the spraying cannot be guaranteed when the magnetic suspension liquid is sprayed onto the workpiece manually in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional magnetic particle flaw detector, comprising a platform, with support plates fixedly connected to both sides of the top of the platform, a horizontal plate fixedly connected between opposite sides of the two support plates, an electric slide rail fixedly installed at the bottom of the horizontal plate, a flaw detector body fixedly installed at the moving end of the electric slide rail, a rotating mechanism fixedly installed on the left side of the top of the platform, a base plate fixedly installed at the bottom of the platform via a support column, a liquid storage tank fixedly installed on the top of the base plate, a diaphragm pump fixedly installed on the top of one side of the liquid storage tank, mounting blocks fixedly connected to both sides of the bottom of the platform, a guide rod fixedly connected between opposite sides of the two mounting blocks, a sliding block slidably connected to the surface of the guide rod, and a nozzle fixedly installed on the top of the sliding block by a fixed bracket.

[0007] Preferably, the rotating mechanism includes a connecting frame, the bottom of which is fixedly connected to the top of the platform, a rotating rod passing through the connecting frame, and a first fixed plate fixedly connected to the right end of the rotating rod.

[0008] Preferably, a limiting plate is fixedly installed on the surface of the rotating rod inside the connecting frame, a positioning cylinder is passed through the top of the connecting frame, a positioning rod is movably arranged inside the positioning cylinder, one end of the positioning rod extends into the limiting plate, and a positioning groove is provided on the limiting plate to cooperate with the positioning rod.

[0009] Preferably, the output end of the diaphragm pump is connected to the input end of the nozzle via a hose, and the input end of the diaphragm pump is connected to the liquid storage tank via a connecting pipe.

[0010] Preferably, the front and rear ends of both sides of the bottom of the platform are fixedly connected to support blocks. One side of one of the support blocks is rotatably connected to a lead screw, and the other side of the support block is fixedly installed with a rotary motor. The output shaft of the rotary motor is fixedly connected to one end of the lead screw through a coupling. The surface of the lead screw is threaded with a threaded block, and the threaded block is fixedly connected to the sliding block through a connecting rod.

[0011] Preferably, a first electric push cylinder is fixedly installed on the right side of the top of the platform via an mounting plate, and a second fixed plate is rotatably connected to one end of the first electric push cylinder. A second electric push cylinder is fixedly installed on one side of the support plate on the left side via an mounting plate, and one end of the second electric push cylinder is fixedly connected to the bottom of the horizontal plate.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. The workpiece is placed between the first fixed plate and the second fixed plate. The first electric push cylinder drives the second fixed plate to move horizontally, fixing the workpiece between the first fixed plate and the second fixed plate. The diaphragm pump works to spray the magnetic suspension liquid onto the workpiece through the nozzle. At the same time, the rotating motor drives the lead screw to rotate. The lead screw drives the sliding block to move through the threaded block and the connecting rod. The sliding block drives the nozzle to move horizontally, achieving uniform spraying on the workpiece and improving the accuracy of the inspection. 2. By pulling out the positioning rod and rotating it, the first fixed plate rotates, which in turn rotates the workpiece. Adjust the workpiece to the surface to be observed, and then insert the positioning rod into the positioning groove. This limits the rotation of the rotating rod and thus limits the workpiece. This allows for rotational positioning of the workpiece, facilitating observation and inspection of multiple surfaces of the workpiece by the operator, and improving the practicality of the equipment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall left side structure of this utility model; Figure 3 This is a schematic diagram of the rotating mechanism of this utility model; Figure 4 This is a schematic diagram of the connection structure between the lead screw and the guide rod of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Platform; 2. Support plate; 3. Horizontal plate; 4. Electric slide rail; 5. Rotating mechanism; 51. Connecting frame; 52. Rotating rod; 53. First fixed plate; 54. Positioning cylinder; 55. Positioning rod; 56. Positioning groove; 57. Limiting plate; 6. Base plate; 7. Liquid storage tank; 8. Diaphragm pump; 9. Mounting block; 10. Guide rod; 11. Sliding block; 12. Nozzle; 13. Support block; 14. Lead screw; 15. Rotating motor; 16. Threaded block; 17. First electric push cylinder; 18. Second fixed plate; 19. Flaw detector body; 20. Second electric push cylinder. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-4 The multifunctional magnetic particle flaw detector shown includes a platform 1. Support plates 2 are fixedly connected to both sides of the top of the platform 1. A horizontal plate 3 is fixedly connected between the opposite sides of the two support plates 2. An electric slide rail 4 is fixedly installed at the bottom of the horizontal plate 3. The flaw detector body 19 is fixedly installed at the moving end of the electric slide rail 4. A rotating mechanism 5 is fixedly installed on the left side of the top of the platform 1. A base plate 6 is fixedly installed at the bottom of the platform 1 through a support column. A liquid storage tank 7 is fixedly installed on the top of the base plate 6. A diaphragm pump 8 is fixedly installed on the top of one side of the liquid storage tank 7. Mounting blocks 9 are fixedly connected to both sides of the bottom of the platform 1. A guide rod 10 is fixedly connected between the opposite sides of the two mounting blocks 9. A sliding block 11 is slidably connected to the surface of the guide rod 10. A nozzle 12 is fixedly installed on the top of the sliding block 11 with a fixed bracket. The rotating mechanism 5 includes a connecting frame 51, the bottom of which is fixedly connected to the top of the platform 1, and a rotating rod 52 passing through the connecting frame 51. A first fixed plate 53 is fixedly connected to the right end of the rotating rod 52. A limiting plate 57 is fixedly installed on the surface of the rotating rod 52 inside the connecting frame 51. A positioning cylinder 54 passes through the top of the connecting frame 51. A positioning rod 55 is movably arranged inside the positioning cylinder 54. One end of the positioning rod 55 extends into the limiting plate 57. A positioning groove 56 is provided on the limiting plate 57 to cooperate with the positioning rod 55. There are four positioning slots 56, each at a 90° angle, which can be adjusted on four sides of the workpiece to allow the user to observe and inspect multiple sides of the workpiece. The output end of the diaphragm pump 8 is connected to the input end of the nozzle 12 via a hose, and the input end of the diaphragm pump 8 is connected to the storage tank 7 via a connecting pipe. The length of the hose is sufficient for the movement of the nozzle 12, and one end of the connecting pipe extends to the bottom of the inner cavity of the storage tank 7. The diaphragm pump 8 adopts existing technology. The liquid storage tank 7 is used to store magnetic suspension liquid. An opening is provided on the platform 1 to cooperate with the movement of the nozzle 12. At the same time, the magnetic suspension liquid dripping from the workpiece can enter the liquid storage tank 7 through the opening for collection and reuse. Support blocks 13 are fixedly connected to the front and rear ends of both sides of the bottom of platform 1. A lead screw 14 is rotatably connected to one side of one support block 13, and a rotary motor 15 is fixedly installed on one side of the other support block 13. The output shaft of the rotary motor 15 is fixedly connected to one end of the lead screw 14 through a coupling. A threaded block 16 is threadedly connected to the surface of the lead screw 14. The threaded block 16 is fixedly connected to the sliding block 11 through a connecting rod. The rotary motor 15 is a three-phase asynchronous AC motor, which can drive the lead screw 14 to rotate in both directions; A first electric push cylinder 17 is fixedly installed on the right side of the top of platform 1 via an mounting plate. One end of the first electric push cylinder 17 is rotatably connected to a second fixed plate 18. A second electric push cylinder 20 is fixedly installed on one side of the left support plate 2 via an mounting plate. One end of the second electric push cylinder 20 is fixedly connected to the bottom of the horizontal plate 3. The first electric push cylinder 17 and the second electric push cylinder 20 are both existing technologies.

[0018] The working principle of this practical application is as follows: In use, the workpiece is placed between the first fixed plate 53 and the second fixed plate 18. The first electric push cylinder 17 drives the second fixed plate 18 to move horizontally, fixing the workpiece between the first fixed plate 53 and the second fixed plate 18. The diaphragm pump 8 works to spray the magnetic suspension liquid onto the workpiece through the nozzle 12. At the same time, the rotating motor 15 works to drive the lead screw 14 to rotate. The lead screw 14 drives the sliding block 11 to move through the threaded block 16 and the connecting rod. The sliding block 11 drives the nozzle 12 to move horizontally, so as to achieve uniform spraying on the workpiece. When it is necessary to spray other surfaces of the workpiece, pull out the positioning rod 55, rotate the rotating rod 52, the rotating rod 52 drives the first fixed plate 53 to rotate, the first fixed plate 53 drives the workpiece to rotate, adjust the workpiece to the surface to be sprayed, after adjustment, insert the positioning rod 55, so that the positioning rod 55 is inserted into the positioning groove 56, and limit the rotating rod 52, so that the workpiece can be limited and fixed. During flaw detection, the flaw detector body 19 is moved horizontally by the electric slide rail 4 to adjust its position. The second electric push cylinder 20 retracts, causing the flaw detector body 19 to move downwards and contact the workpiece. The operator can then observe the surface of the workpiece with a handheld spotlight to determine if there are any defects. When it is necessary to observe other surfaces of the workpiece, the positioning rod 55 is pulled out, and the rotating rod 52 is rotated. The rotating rod 52 drives the first fixed plate 53 to rotate, which in turn drives the workpiece to rotate. The workpiece is adjusted to the surface to be observed. After adjustment, the positioning rod 55 is inserted into the positioning groove 56, and the rotating rod 52 is limited to stop the workpiece.

[0019] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multifunctional magnetic particle flaw detector, comprising a platform (1), characterized in that: Support plates (2) are fixedly connected to both sides of the top of the platform (1). A horizontal plate (3) is fixedly connected between the opposite sides of the two support plates (2). An electric slide rail (4) is fixedly installed at the bottom of the horizontal plate (3). A flaw detector body (19) is fixedly installed at the moving end of the electric slide rail (4). A rotating mechanism (5) is fixedly installed on the left side of the top of the platform (1). A base plate (6) is fixedly installed at the bottom of the platform (1) through a support column. A liquid storage tank (7) is fixedly installed at the top of the base plate (6). A diaphragm pump (8) is fixedly installed at the top of one side of the liquid storage tank (7). Mounting blocks (9) are fixedly connected to both sides of the bottom of the platform (1). A guide rod (10) is fixedly connected between the opposite sides of the two mounting blocks (9). A sliding block (11) is slidably connected to the surface of the guide rod (10). A nozzle (12) is fixedly installed on the top bracket of the sliding block (11).

2. The multifunctional magnetic particle flaw detector according to claim 1, characterized in that: The rotating mechanism (5) includes a connecting frame (51), the bottom of which is fixedly connected to the top of the platform (1), and a rotating rod (52) passes through the connecting frame (51). A first fixed plate (53) is fixedly connected to the right end of the rotating rod (52).

3. The multifunctional magnetic particle flaw detector according to claim 2, characterized in that: The rotating rod (52) is fixedly mounted on the surface inside the connecting frame (51) with a limiting plate (57). The top of the connecting frame (51) is penetrated by a positioning cylinder (54). A positioning rod (55) is movably arranged inside the positioning cylinder (54). One end of the positioning rod (55) extends into the limiting plate (57). The limiting plate (57) is provided with a positioning groove (56) that cooperates with the positioning rod (55).

4. A multifunctional magnetic particle flaw detector according to claim 1, characterized in that: The output end of the diaphragm pump (8) is connected to the input end of the nozzle (12) through a hose, and the input end of the diaphragm pump (8) is connected to the liquid storage tank (7) through a pipe.

5. The multifunctional magnetic particle flaw detector according to claim 1, characterized in that: The platform (1) has support blocks (13) fixedly connected to the front and rear ends on both sides of the bottom. One of the support blocks (13) is rotatably connected to a lead screw (14), and the other support block (13) is fixedly installed with a rotating motor (15). The output shaft of the rotating motor (15) is fixedly connected to one end of the lead screw (14) through a coupling. The surface of the lead screw (14) is threaded with a threaded block (16), and the threaded block (16) is fixedly connected to the sliding block (11) through a connecting rod.

6. The multifunctional magnetic particle flaw detector according to claim 1, characterized in that: A first electric push cylinder (17) is fixedly installed on the right side of the top of the platform (1) by a mounting plate. One end of the first electric push cylinder (17) is rotatably connected to a second fixed plate (18). A second electric push cylinder (20) is fixedly installed on one side of the support plate (2) on the left side by a mounting plate. One end of the second electric push cylinder (20) is fixedly connected to the bottom of the horizontal plate (3).

Images