Magnetic powder inspection auxiliary device

Abstract

The invention discloses an auxiliary device for magnetic powder inspection, belongs to the technical field of magnetic powder inspection, and mainly solves the technical problems that for a relatively high workpiece, a worker is difficult to inspect the workpiece at the high position, and usually needs to hold a probe by hand for a long time to inspect the workpiece at the high position, so that the hand feels sour after the operation time is long, and the working efficiency is high in the prior art. The auxiliary device comprises a mounting bottom plate, a supporting frame is arranged on the upper surface of the mounting bottom plate, a fixed frame is arranged at the top of the supporting frame, a lifting assembly is arranged in the fixed frame, a movable seat is arranged in the fixed frame in a lifting mode, and a linear motor is fixedly mounted on the front face of the movable seat; a mounting shell is fixed to the output end of the linear motor, a bearing plate is fixedly connected to the front face of the mounting shell, two moving blocks are slidably mounted in the mounting shell, connecting supporting plates are fixed to the front faces of the moving blocks, and positioning columns are fixedly connected to the tops of the connecting supporting plates.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic particle flaw detection, and more specifically, to a magnetic particle flaw detection auxiliary device. Background Art

[0002] Magnetic particle testing utilizes the fact that after ferromagnetic materials are magnetized, the magnetic lines of force on the surface and near the surface of the workpiece are locally distorted due to the existence of discontinuities, resulting in leakage magnetic fields. The leakage magnetic field is the magnetic field formed when the magnetic induction lines leave and enter the surface. It can adsorb the magnetic powder applied to the surface of the workpiece, forming magnetic marks that are visible under appropriate lighting, thereby showing the location, shape and size of the discontinuity. During magnetic particle testing, the workpiece to be tested is first sprayed with a magnetic powder suspension to adsorb the magnetic powder on its surface. Therefore, the inspector can use auxiliary devices to assist the operation of the magnetic particle flaw detector to perform flaw detection on the workpiece surface.

[0003] However, there are various types of auxiliary devices in the prior art. For example, invention patent CN218180746U relates to an auxiliary tooling of a magnetic particle flaw detector, which includes a magnetic particle flaw detector body, the magnetic particle flaw detector body includes a fixed frame and a magnetic powder box, the top of the fixed frame is bolted to the bottom of the magnetic powder box, the discharge end of the magnetic powder box is connected with a feed pipe, and the bottom of the feed pipe passes through the fixed frame and is connected with a nozzle, the inner cavity of the fixed frame is provided with an auxiliary clamping device, the front of the magnetic particle flaw detector body is bolted with a controller, and the first motor, the fixed box, the second motor, the rotating shaft, the first bevel gear, the second bevel gear, the screw rod, the threaded sleeve and the fixed plate are cooperated to facilitate clamping and fixing the workpiece, and drive the workpiece to rotate during powder spraying, thereby improving the fixing effect of the workpiece, avoiding the movement of the workpiece during powder spraying, and avoiding affecting the flaw detection result, and protecting the workpiece through the cooperation of the protective pad, and storing items such as maintenance tools through the cooperation of the box body, the box door, the support plate and the partition.

[0004] Although the auxiliary tooling can fix the workpiece to be inspected and ensure the stability of the device after moving, when using the auxiliary device, for workpieces at a high height, not only is it difficult for workers to inspect the high-position workpiece, but the workers usually need to hold the probe for a long time to inspect the high workpiece. After a long operation, their hands will become sore and the labor intensity is high, which affects the efficiency of flaw detection. In order to avoid this phenomenon, it is very necessary to design a magnetic particle flaw detection auxiliary device. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To achieve the above object, the present invention provides a magnetic particle flaw detection auxiliary device, which is achieved by the following specific technical means: A magnetic particle flaw detection auxiliary device comprises a mounting base plate, a support frame is arranged on the upper surface of the mounting base plate, the bottom of the mounting base plate is rotatably connected with a rotating shaft through a bearing seat, two movable wheels are coaxially arranged on the surface of the rotating shaft, a fixed frame is arranged on the top of the support frame, a lifting assembly is arranged in the fixed frame, a movable seat is lifted and lowered in the fixed frame, a linear motor is fixedly installed on the front of the movable seat, and the linear motor is located in front of the fixed frame, a mounting shell is fixedly installed on the output end of the linear motor, a bearing plate is fixedly connected to the front of the mounting shell, two movable blocks are slidably installed inside the mounting shell, connecting support plates are fixed on the front of the movable blocks, and a positioning column is fixedly connected to the top of the connecting support plate.

[0007] Preferably, the lifting assembly includes a screw, a guide rod, a first pulley, a rotating motor and a second pulley. The screw is rotatably connected to the fixed frame through a bearing. The screw is threadedly connected to the movable seat. Two guide rods are fixedly connected to the fixed frame, and the two guide rods are respectively located on both sides of the screw, and the guide rod is slidably installed with the movable seat.

[0008] Preferably, a first pulley is coaxially arranged on the surface of the screw rod, a rotating motor is fixedly installed on the top of the support frame, and the rotating motor is fixed behind the fixed frame. The output end of the rotating motor is rotatably connected to the second pulley through an axis, and the second pulley is connected to the first pulley through a belt drive.

[0009] Preferably, a screw is rotatably connected to the inside of the mounting shell through a bearing, and the screw is threadedly connected to the two moving blocks. Two external threads are provided on the surface of the screw, and the spiral directions of the two external threads are opposite, so that the two moving blocks can move away from or closer to each other. One end of the screw is fixedly connected to a rotating handle.

[0010] Preferably, the support frame is shaped like an inverted U, the two movable blocks are arranged symmetrically, the two connecting support plates are located above the bearing plate, the two positioning columns can be sleeved with magnetic particle flaw detection probes, and a push rod is fixedly connected to the upper surface of the mounting base, and the push rod is located at one side edge of the mounting base.

[0011] Preferably, a probe storage box is provided on the top of the support frame, and the probe storage box is located behind the rotating motor. A magnetic particle flaw detection host is fixedly installed on the upper surface of the mounting base, and the magnetic particle flaw detection host is fixed in the support frame.

[0012] Preferably, two symmetrically arranged assembly brackets are detachably provided on the upper surface of the mounting base, a winding coil is provided between the two assembly brackets via a transmission shaft, the winding coil is located in the support frame, and a hand-cranked wheel is fixedly connected to one end of the transmission shaft.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: In order to adjust the magnetic particle flaw detection probe to the position to be tested of the high workpiece, the probe is placed on the carrier plate, and the two positioning columns are passed through the handle groove of the probe. Then, the two moving blocks are driven away from each other by a screw rod, so that the positioning columns that are away are abutted against the inner wall of the groove, and the probe in a horizontal state is positioned and fixed; then, the probe is moved up and down by a lifting movable seat to raise it to a suitable height, and then the linear motor is used to drive the probe to move horizontally to change its corresponding specific position, and the adjustment operation of the auxiliary device is completed, so that the probe points to the surface to be tested of the workpiece, thereby not only being able to detect flaws on the surface of the workpiece at a high position, but also eliminating the need for workers to hold the magnetic particle flaw detection probe for a long time for flaw detection operations, thereby reducing labor intensity and improving flaw detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is the overall structural diagram of the protection structure; Figure 2 is a structural schematic diagram of a lifting assembly; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 is a cross-sectional schematic diagram of a lifting assembly; Figure 5 It is a front view structural schematic diagram of the present invention; Figure 6 It is a structural schematic diagram of the winding structure.

[0015] In the figure: 1. Installation base plate; 2. Support frame; 3. Moving wheel; 4. Fixed frame; 5. Movable seat; 6. Linear motor; 7. Installation shell; 8. Load-bearing plate; 9. Moving block; 10. Connecting support plate; 11. Positioning column; 12. Screw; 13. Lead screw; 14. Guide rod; 15. First pulley; 16. Rotating motor; 17. Second pulley; 18. Probe storage box; 19. Magnetic particle inspection host; 20. Assembly bracket; 21. Transmission shaft; 22. Winding coil; 23. Hand crank wheel; 24. Push rod. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0019] like Figure 1 , Figure 2 as well as Figure 4 As shown, it is a structural schematic diagram of the magnetic particle flaw detection auxiliary device in this embodiment. The auxiliary device in this embodiment includes a mounting base plate 1, a support frame 2 is arranged on the upper surface of the mounting base plate 1, a fixed frame 4 is arranged on the top of the support frame 2, a movable seat 5 is arranged in the fixed frame 4 for lifting, a linear motor 6 is fixedly installed on the front of the movable seat 5, and the linear motor 6 is located in front of the fixed frame 4. In order to adjust the magnetic particle flaw detection probe to the position to be tested of the workpiece at a high place, the probe is first fixed on the auxiliary device, and the positioned magnetic particle flaw detection probe is moved up and down by the movable seat 5 to raise it to a suitable height, and then the linear motor 6 is started, and the output end of the linear motor 6 is used to drive the probe to move horizontally, so as to change the specific position corresponding to the probe, and complete the adjustment operation of the auxiliary device; like Figure 3 As shown, in this embodiment, the output end of the linear motor 6 is fixed with a mounting shell 7, the front side of the mounting shell 7 is fixedly connected with a bearing plate 8, and two moving blocks 9 are slidably installed inside the mounting shell 7, and the front sides of the moving blocks 9 are fixed with connecting support plates 10, and the tops of the connecting support plates 10 are fixedly connected with positioning columns 11, and the interior of the mounting shell 7 is rotatably connected with a screw rod 12 through a bearing, and one end of the screw rod 12 is fixedly connected with a rotating handle. Before adjusting the probe to the position to be tested for flaw detection, the magnetic particle flaw detection probe is placed on the bearing plate 8, so that the two positioning columns 11 pass through the handle groove of the probe, and then the two-way thread of the screw rod 12 is used to rotate the rotating handle to drive the two moving blocks 9 away from each other, so that the two positioning columns 11 abut against the inner wall of the groove, and the anti-slip pad provided on the surface of the positioning column 11 is used to position and fix the probe in a horizontal state so that it points to the surface to be tested of the workpiece, thereby not only being able to detect flaws on the surface of the workpiece at a high position, but also eliminating the need for staff to hold the magnetic particle flaw detection probe for a long time for flaw detection operations, thereby reducing labor intensity and improving flaw detection efficiency.

[0020] It is worth noting that in this embodiment, the screw 12 is threadedly connected to the two moving blocks 9, and two external threads are provided on the surface of the screw 12. The spiral directions of the two external threads are opposite, which can make the two moving blocks 9 move away from or close to each other.

[0021] like Figure 4 As shown, in order to provide driving force for the lifting of the movable seat 5, in this embodiment, a screw rod 13 is rotatably connected in the fixed frame 4 through a bearing, and the screw rod 13 is threadedly connected to the movable seat 5. Two guide rods 14 are fixedly connected in the fixed frame 4, and the two guide rods 14 are respectively located on both sides of the screw rod 13. The guide rod 14 and the movable seat 5 are slidably installed. A first pulley 15 is coaxially arranged on the surface of the screw rod 13. A rotating motor 16 is fixedly installed on the top of the support frame 2, and the rotating motor 16 is fixed to the rear of the fixed frame 4. The output end of the rotating motor 16 is rotatably connected to a second pulley 17 through a shaft. The second pulley 17 is connected to the first pulley 15 through a belt transmission. The rotating motor 16 is started, and the rotating motor 16 provides driving force for the rotation of the second pulley 17. Through the transmission action of the transmission belt, the first pulley 15 is driven to rotate, so that the screw rod 13 rotates with the first pulley 15. By utilizing the cooperation between the screw rod 13 and the movable seat 5, the screw rod 13 drives the movable seat 5 to rise or fall, so as to complete the lifting work.

[0022] It is worth noting that the screw rod 13, the guide rod 14, the first pulley 15, the rotating motor 16 and the second pulley 17 in this embodiment constitute a lifting assembly, which is used to adjust the height of the fixedly positioned magnetic particle inspection probe.

[0023] like Figure 5 As shown, in this embodiment, a probe storage box 18 is provided on the top of the support frame 2, and the probe storage box 18 is located behind the rotating motor 16, and a magnetic particle flaw detection host 19 is fixedly installed on the upper surface of the mounting base 1, and the magnetic particle flaw detection host 19 is fixed in the support frame 2. After completing the flaw detection work, the probe, the magnetic particle flaw detection host 19 and the connecting line are removed respectively, and then the magnetic particle flaw detection probe is stored in the probe storage box 18.

[0024] like Figure 6 As shown, in this embodiment, the upper surface of the mounting base plate 1 is detachably provided with two symmetrically arranged assembly brackets 20, a winding coil 22 is provided between the two assembly brackets 20 via a transmission shaft 21, the winding coil 22 is located in the support frame 2, and one end of the transmission shaft 21 is fixedly connected to a hand-cranked wheel 23. When the connecting wire is removed, it is rolled up on the winding coil 22 for easy storage.

[0025] It is worth noting that in this embodiment, the support frame 2 is in an inverted U shape, the two moving blocks 9 are arranged symmetrically, the two connecting support plates 10 are located above the bearing plate 8, the two positioning columns 11 can be provided with magnetic particle flaw detection probes, the bottom of the mounting base plate 1 is rotatably connected to a rotating shaft through a bearing seat, and two moving wheels 3 are coaxially arranged on the surface of the rotating shaft, and a push rod 24 is fixedly connected to the upper surface of the mounting base plate 1, and the push rod 24 is located at one side edge of the mounting base plate 1.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic particle flaw detection auxiliary device, comprising a mounting base plate (1), a support frame (2) being arranged on the upper surface of the mounting base plate (1), a rotating shaft being rotatably connected to the bottom of the mounting base plate (1) via a bearing seat, two moving wheels (3) being coaxially arranged on the surface of the rotating shaft, characterized in that: A fixed frame (4) is arranged on the top of the support frame (2), a lifting assembly is arranged in the fixed frame (4), a movable seat (5) is lifted and arranged in the fixed frame (4), a linear motor (6) is fixedly installed on the front of the movable seat (5), and the linear motor (6) is located in front of the fixed frame (4), a mounting shell (7) is fixed on the output end of the linear motor (6), a bearing plate (8) is fixedly connected to the front of the mounting shell (7), two moving blocks (9) are slidably installed inside the mounting shell (7), a connecting support plate (10) is fixed to the front of the moving blocks (9), and a positioning column (11) is fixedly connected to the top of the connecting support plate (10).

2. A magnetic particle flaw detection auxiliary device according to claim 1, characterized in that: The lifting assembly comprises a screw rod (13), a guide rod (14), a first pulley (15), a rotating motor (16) and a second pulley (17); the screw rod (13) is rotatably connected to the fixed frame (4) via a bearing; the screw rod (13) is threadedly connected to the movable seat (5); two guide rods (14) are fixedly connected to the fixed frame (4); the two guide rods (14) are respectively located on both sides of the screw rod (13); and the guide rods (14) and the movable seat (5) are slidably mounted.

3. A magnetic particle flaw detection auxiliary device according to claim 2, characterized in that: A first pulley (15) is coaxially arranged on the surface of the screw rod (13); a rotating motor (16) is fixedly mounted on the top of the support frame (2); the rotating motor (16) is fixed to the rear of the fixed frame (4); an output end of the rotating motor (16) is rotatably connected to a second pulley (17) via a shaft; and the second pulley (17) and the first pulley (15) are connected via a belt transmission.

4. The magnetic particle flaw detection auxiliary device according to claim 1, characterized in that: A screw rod (12) is rotatably connected to the interior of the mounting housing (7) via a bearing. The screw rod (12) is threadedly connected to the two moving blocks (9). The surface of the screw rod (12) is provided with two external threads. The spiral directions of the two external threads are opposite, so that the two moving blocks (9) can be moved away from or closer to each other. One end of the screw rod (12) is fixedly connected to a rotating handle.

5. The magnetic particle flaw detection auxiliary device according to claim 1, characterized in that: The support frame (2) is in an inverted U-shape, the two moving blocks (9) are symmetrically arranged, the two connecting support plates (10) are located above the bearing plate (8), the two positioning columns (11) can be sleeved with magnetic particle flaw detection probes, and the upper surface of the mounting base plate (1) is fixedly connected to a push rod (24), and the push rod (24) is located at one side edge of the mounting base plate (1).

6. The magnetic particle flaw detection auxiliary device according to claim 1, characterized in that: A probe storage box (18) is provided on the top of the support frame (2), and the probe storage box (18) is located behind the rotating motor (16). A magnetic particle flaw detection host (19) is fixedly mounted on the upper surface of the mounting base plate (1), and the magnetic particle flaw detection host (19) is fixed in the support frame (2).

7. The magnetic particle flaw detection auxiliary device according to claim 1, characterized in that: Two symmetrically arranged assembly brackets (20) are detachably provided on the upper surface of the installation base plate (1); a winding coil (22) is provided between the two assembly brackets (20) via a transmission shaft (21); the winding coil (22) is located in the support frame (2); and a hand-cranked wheel (23) is fixedly connected to one end of the transmission shaft (21).

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