Microcomputer-controlled fluorescent magnetic particle flaw detector

Abstract

The utility model belongs to the technical field of magnetic powder inspection, and particularly relates to a microcomputer control fluorescent magnetic powder inspection machine which comprises a rack, two box doors are assembled on the front side of the rack in a sliding mode, a detection groove is formed in the rack, a plurality of spray heads are arranged on the upper side of the detection groove, two annular tables are installed in the detection groove, and bearing blocks are fixedly arranged in the two annular tables. A square table is slidably assembled in the detection groove, a right annular table is rotationally assembled on the left side of the square table, a motor is installed in the rack, an output shaft of the motor is in transmission connection with the left annular table, screw rods are rotationally assembled on the upper sides of the two arc blocks, and threaded holes matched with the screw rods are formed in the upper sides of the two annular tables. The workpiece is placed on the upper sides of the two bearing tables, the limiting assembly limits the workpiece, the motor drives the workpiece to rotate through the annular table, the spraying head sprays fluorescent powder to the workpiece, the fluorescent powder is attached to the workpiece while the workpiece rotates, the fluorescent powder can be evenly attached to the surface of the workpiece, and the workpiece can be observed easily.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic particle flaw detection, and in particular relates to a microcomputer-controlled fluorescent magnetic particle flaw detector. Background Art

[0002] In nature, magnetic lines of force always maintain their continuity. When a ferromagnetic workpiece is placed in a saturated magnetic field, the magnetic lines of force will be guided through the workpiece. If the magnetic lines of force encounter discontinuities on the workpiece material (i.e., cracks, slag inclusions, pores and other defects), the magnetic lines of force will bypass these areas with lower magnetic permeability (larger magnetic resistance) and leak out of the workpiece surface to form a "leakage magnetic field". In this way, magnetic poles will be generated on both sides of the defect. When magnetic powder (or magnetic suspension) is adsorbed around defects such as cracks, it can form a clearly visible linear or dot-shaped accumulation. Therefore, a fluorescent magnetic particle flaw detector is used to detect the surface of precision workpieces. Most existing flaw detectors use coils to detect workpieces during flaw detection. It is necessary to perform multiple flaw detection tests on the workpiece to detect its defects. The work efficiency is low and the detection effect is poor. This also increases the labor intensity of the staff, which cannot keep up with the existing production speed and cannot be applied to large-scale production detection requirements. Therefore, a microcomputer-controlled fluorescent magnetic particle flaw detector is needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a microcomputer-controlled fluorescent magnetic particle flaw detector, which places a workpiece on the upper sides of two bearing platforms, limits the workpiece with a limit assembly, drives the workpiece to rotate through an annular platform, and sprays fluorescent powder on the workpiece with a nozzle, so that the workpiece adheres to the fluorescent powder while rotating, which is beneficial for uniform adhesion of the fluorescent powder on the surface of the workpiece and is beneficial for observation of the workpiece.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] A microcomputer-controlled fluorescent magnetic particle flaw detector comprises a frame, a square opening is provided on the front side of the frame, two symmetrical box doors are slidably mounted on the front side of the frame, a detection slot is provided in the frame, a spray rod is fixedly provided on the upper side of the detection slot, a plurality of linearly distributed spray heads are installed on the lower side of the spray rod, two black light lamps symmetrically distributed front and back are fixedly provided on the upper side of the detection slot, two annular tables symmetrically distributed front and back are installed in the detection slot, a bearing block is fixedly provided in each of the two annular tables, two slide rails symmetrically distributed front and back are fixedly provided on the lower side of the detection slot, a square table is slidably mounted in the detection slot, a slide groove matching the two slide rails is provided on the lower side of the square table, the annular table on the right side is rotatably mounted on the left side of the square table, a motor is installed in the frame, the output shaft of the motor is transmission-connected to the annular table on the left side, screws are rotatably mounted on the upper sides of the two arc blocks, threaded holes matching the screws are provided on the upper sides of the two annular tables, and a limit assembly is provided between the square table and the two slide rails.

[0006] The limit assembly includes a square cavity opened in the square table, two square openings interconnected with the square cavity are opened on the upper sides of the two slide grooves, a square plate is slidably installed in the square cavity, four limit blocks matching the square openings are fixedly provided on the lower side of the square plate, a number of linearly distributed limit grooves are opened on the upper sides of the two slide rails, a number of symmetrically distributed springs are fixedly provided between the upper side of the square plate and the side wall of the square cavity, a through groove interconnected with the square cavity is opened on the front side of the square table, a vertical rod is rotatably installed on the upper side of the square plate, a square rod is rotatably installed in the through groove, and one end of the square rod extending backward from the square cavity is hinged to the upper end of the vertical rod.

[0007] Two guide holes are arranged on the upper side of the annular platform and are symmetrically distributed front to back. Two guide rods matching the guide holes are fixedly arranged on the upper side of the arc block.

[0008] A plurality of symmetrically distributed round rods are fixedly arranged in the square cavity, and a plurality of round holes matching the round rods are opened in the square plate.

[0009] A handle is fixedly provided on the front side of the vertical rod.

[0010] The utility model places the workpiece on the upper sides of two bearing platforms, limits the workpiece with a limiting component, and a motor drives the workpiece to rotate through an annular platform. A nozzle sprays fluorescent powder to the workpiece, so that the workpiece adheres to the fluorescent powder while rotating, which is beneficial for uniform adhesion of the fluorescent powder on the surface of the workpiece and is beneficial for observation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0012] Figure 1This is a schematic diagram of the structure of a microcomputer-controlled fluorescent magnetic particle flaw detector embodiment of the utility model. Figure 1 ;

[0013] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0014] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0015] Figure 4 This is a schematic diagram of the structure of a microcomputer-controlled fluorescent magnetic particle flaw detector embodiment of the utility model. Figure 2 ;

[0016] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of the square table of a microcomputer-controlled fluorescent magnetic particle flaw detector embodiment.

[0017] The main component symbols are described as follows:

[0018] Frame 1, box door 10, detection slot 11, spray rod 12, nozzle 13, black light 14, annular table 15, bearing block 16, slide rail 17, square table 18, slide slot 19, motor 20, arc block 21, screw 22, square cavity 23, square plate 24, limit block 25, limit slot 26, spring 27, through slot 28, vertical rod 29, square rod 30, guide rod 31, round rod 32, handle 33. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-5As shown, a microcomputer-controlled fluorescent magnetic particle flaw detector of the utility model comprises a frame 1, a square opening is provided at the front side of the frame 1, two left-right symmetrical box doors 10 are slidably mounted at the front side of the frame 1, a detection slot 11 is provided in the frame 1, a spray rod 12 is fixedly provided at the upper side of the detection slot 11, a plurality of linearly distributed spray heads 13 are mounted at the lower side of the spray rod 12, two black light lamps 14 are fixedly provided at the upper side of the detection slot 11 and are symmetrically distributed front and back, two circular platforms 15 are installed in the detection slot 11 and bearing blocks 16 are fixedly provided in both the two circular platforms 15, Two slide rails 17 symmetrically distributed front and back are fixedly provided at the lower side of the detection groove 11, a square table 18 is slidably installed in the detection groove 11, and a slide groove 19 matching the two slide rails 17 is opened at the lower side of the square table 18, the right annular table 15 is rotatably installed on the left side of the square table 18, a motor 20 is installed in the frame 1, and the output shaft of the motor 17 is transmission-connected with the left annular table 18, screws 22 are rotatably installed on the upper sides of the two arc blocks 21, and threaded holes matching the screws 22 are opened on the upper sides of the two annular tables 15, and a limit assembly is provided between the square table 18 and the two slide rails 17;

[0021] When the utility model is in use, the operator first opens the box door 10, places one end of the workpiece on the upper side of the left-side bearing block 16, and then moves the square table 18, so that the square table 18 drives the annular table 15 on the right side to move. After the right side of the workpiece is placed on the upper side of the right-side bearing block 16, the movement of the square table 18 is stopped, and the screw rods 22 on both sides are rotated respectively, and the screw rods 22 drive the arc blocks 21 on both sides to move the workpiece on the upper side of the bearing block 15. After the arc blocks 21 on both sides abut against the workpiece, the workpiece is limited. The operator then closes the box door 10, starts the motor 20, and the output shaft of the motor 20 drives the annular table 14 on the left side to start rotating. The annular table 14 on the left side synchronously drives the workpiece and the annular table 14 on the right side to rotate, and at the same time opens the nozzle 13, so that the nozzle 13 sprays fluorescent powder on the workpiece, so that the device sandblasts the rotating workpiece with fluorescent powder, so that the surface of the workpiece should be attached more evenly, which is beneficial to the detection and flaw detection of the workpiece;

[0022] When inspecting the workpiece, the operator turns on two black light lamps 14 to inspect the surface of the workpiece, which is convenient for rapid inspection and improves the inspection efficiency.

[0023] The utility model places the workpiece on the upper sides of two bearing platforms, limits the workpiece with a limiting component, and a motor drives the workpiece to rotate through an annular platform. A nozzle sprays fluorescent powder to the workpiece, so that the workpiece adheres to the fluorescent powder while rotating, which is beneficial for uniform adhesion of the fluorescent powder on the surface of the workpiece and is beneficial for observation of the workpiece.

[0024] The limiting assembly includes a square cavity 23 opened in the square table 18, two square openings interconnected with the square cavity 23 are opened on the upper sides of the two slide grooves 19, a square plate 24 is slidably installed in the square cavity 23, four limiting blocks 25 matching the square openings are fixedly installed on the lower side of the square plate 24, a plurality of linearly distributed limiting grooves 26 are opened on the upper sides of the two slide rails 17, a plurality of symmetrically distributed springs 27 are fixedly installed between the upper side of the square plate 24 and the side wall of the square cavity 23, a through groove 28 interconnected with the square cavity 23 is opened on the front side of the square table 18, a vertical rod 29 is rotatably installed on the upper side of the square plate 24, a square rod 30 is rotatably installed in the through groove 28, and one end of the square rod 30 extending backward from the square cavity 23 is hinged to the upper end of the vertical rod 29;

[0025] When the utility model is not in use, the square plate 24 is located at the lower side of the square cavity 23 under the elastic action of the spring 27, so that the limit block 25 is inserted into the limit groove 26 on the upper side of the slide rail 17, and the square table 18 is limited, so that the square table 18 is placed to move, ensuring the smooth operation of the device;

[0026] When using the utility model, when moving the square platform 18, the operator holds the front side of the square rod 30 and rotates it directly downward. The rear side of the square rod 30 drives the vertical rod 29 to the upper end of the square cavity 23, drives the square plate 24 to slide upward in the square cavity 23, so that the spring 27 is compressed, and the square plate 24 simultaneously drives the limit block 25 to slide upward along the square mouth, so that the limit block 25 is separated from the limit groove 26 on the upper side of the slide rail 17. The operator moves the square platform 18, which is convenient to operate and has a simple structure.

[0027] Two guide holes are provided on the upper side of the annular table 15 and are symmetrically distributed front to back. Two guide rods 31 matching the guide holes are fixedly provided on the upper side of the arc block 21. When the screw rod 22 is rotated to move the arc block 21 up and down, the guide rods 31 are used to limit the arc block 21 to prevent the arc block 21 from rotating, thereby ensuring contact with the workpiece.

[0028] A plurality of symmetrically distributed round rods 32 are fixedly disposed in the square cavity 23, and a plurality of round holes matching the round rods 32 are opened in the square plate 24; the movement of the square plate 23 in the room front 23 is limited to ensure the smooth operation of the device.

[0029] A handle 33 is fixedly provided on the front side of the vertical rod 29 to facilitate the operator to operate the side rod 30 .

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A microcomputer-controlled fluorescent magnetic particle flaw detector, comprising a frame, characterized in that: The front side of the frame is provided with a square opening, and the front side of the frame is slidably equipped with two symmetrical box doors, a detection slot is provided in the frame, a spray rod is fixedly provided on the upper side of the detection slot, and a plurality of linearly distributed spray heads are installed on the lower side of the spray rod, two black light lamps symmetrically distributed front and back are fixedly provided on the upper side of the detection slot, two annular tables symmetrically distributed front and back are installed in the detection slot, and bearing blocks are fixedly provided in the two annular tables, and two slide rails symmetrically distributed front and back are fixedly provided on the lower side of the detection slot, a square table is slidably equipped in the detection slot, a slide groove matching the two slide rails is provided on the lower side of the square table, the annular table on the right is rotatably equipped on the left side of the square table, a motor is installed in the frame, and the output shaft of the motor is transmission-connected to the annular table on the left side, arc blocks slidably equipped in the two annular tables, screws are rotatably equipped on the upper sides of the two arc blocks, threaded holes matching the screws are provided on the upper sides of the two annular tables, and a limit assembly is provided between the square table and the two slide rails.

2. A microcomputer-controlled fluorescent magnetic particle flaw detector according to claim 1, characterized in that: The limit assembly includes a square cavity opened in the square table, two square openings interconnected with the square cavity are opened on the upper sides of the two slide grooves, a square plate is slidably installed in the square cavity, four limit blocks matching the square openings are fixedly provided on the lower side of the square plate, a number of linearly distributed limit grooves are opened on the upper sides of the two slide rails, a number of symmetrically distributed springs are fixedly provided between the upper side of the square plate and the side wall of the square cavity, a through groove interconnected with the square cavity is opened on the front side of the square table, a vertical rod is rotatably installed on the upper side of the square plate, a square rod is rotatably installed in the through groove, and one end of the square rod extending backward from the square cavity is hinged to the upper end of the vertical rod.

3. A microcomputer-controlled fluorescent magnetic particle flaw detector according to claim 1, characterized in that: Two guide holes are arranged on the upper side of the annular platform and are symmetrically distributed front to back. Two guide rods matching the guide holes are fixedly arranged on the upper side of the arc block.

4. A microcomputer-controlled fluorescent magnetic particle flaw detector according to claim 2, characterized in that: A plurality of symmetrically distributed round rods are fixedly arranged in the square cavity, and a plurality of round holes matching the round rods are opened in the square plate.

5. A microcomputer-controlled fluorescent magnetic particle flaw detector according to claim 2, characterized in that: A handle is fixedly provided on the front side of the vertical rod.

Images