A device for nondestructive testing of the pin-pulling capacity of an electromagnetic pin-puller

Abstract

The utility model discloses a kind of pin pulling capacity nondestructive testing device of electromagnetic pin puller, specifically related to electromagnetic pin puller detection technical field, including detection box and box door, and box door is hingedly connected between the front side of detection box, the top end of detection box is fixedly embedded and installed with laser displacement sensor main body and electromagnetic ultrasonic detector main body, mobile assembly is provided on detection box, mobile assembly includes stepper motor, screw rod, bottom frame, storage board, slide bar, second vertical rod and second conductive block, stepper motor is fixedly installed in one side of detection box, and the output shaft end of stepper motor is fixedly connected with screw rod. The utility model drives electromagnetic pin puller horizontal movement by stepper motor work, laser displacement sensor main body detects the real-time distance change from pin to retract, electromagnetic ultrasonic detector main body identifies pin root microcrack, surface defect and other problems, simple operation, effectively improve the effect of detection.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic pin puller testing technology, and more specifically, to a non-destructive testing device for the pin pulling ability of an electromagnetic pin puller. Background Technology

[0002] An electromagnetic pin puller is a device that uses electromagnetic force to quickly unlock a pin. It mainly consists of an electromagnet, a spring, and a locking pin. Its working principle is that the electromagnetic force generated by energizing the device overcomes the spring force, causing the locking pin to disengage from the groove of the target structure, thus achieving the pin pull function. Without damaging the electromagnetic pin puller or its target (such as the pin or connecting structure), its key performance indicators can be quantitatively evaluated, allowing for the early detection of hidden problems, verification of key performance characteristics, and ensuring long-term reliability.

[0003] A search revealed that Chinese patent CN219617653U discloses a double-sided suction-type electromagnetic pin puller. This utility model, through the design of a novel magnetic circuit structure, transforms the static iron core and moving armature in traditional electromagnetic pin pullers into two relatively moving armatures. By applying a rated excitation to a single coil, it causes the coil to move relative to each other in the magnetic field generated by the coil. This allows the pins on both sides to simultaneously and rapidly overcome the radial load force and retract completely into the puller from both sides, thus removing the restriction on the confined mechanism. This effectively solves the problems of insufficient pin pulling force, poor simultaneity of action, complex operation, and high energy consumption in traditional solutions, ensuring the effectiveness of use and the safety of the entire machine.

[0004] Before using the aforementioned electromagnetic pin puller, it is necessary to inspect it to ensure that it is not damaged. In traditional inspection methods, the surface of the pin is only observed by human eyes for obvious scratches, such as deformation, corrosion, or breakage. However, it cannot identify hidden defects, such as micro-cracks at the root of the pin or loose connection between the armature and the pin. The inspection effect is poor. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a non-destructive testing device for the pin-pulling capability of an electromagnetic pin puller, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-destructive testing device for the pin-pulling capability of an electromagnetic pin puller, comprising a testing box and a box door, wherein the box door and the front side of the testing box are movably connected by a hinge. A laser displacement sensor body and an electromagnetic ultrasonic testing instrument body are fixedly embedded in the top of the testing box. A moving component is provided on the testing box, the moving component comprising a stepper motor, a lead screw, a bottom frame, a shelf, a slide rod, a second upright rod, and a second conductive block. The stepper motor is fixedly installed on one side of the testing box, and the output shaft end of the stepper motor is fixedly connected to the lead screw. Both ends of the lead screw are movably connected to the testing box by bearings, and the outer side of the lead screw is threadedly connected to the bottom frame. The top of the bottom frame is fixedly connected to the shelf. One end of the slide rod passes through the bottom frame, and the bottom frame is fixedly installed inside both ends of the testing box.

[0007] Furthermore, the bottom end of the second conductive block is fixedly connected to the second upright, and two first conductive blocks are provided on the top of the second conductive block. The top ends of the two first conductive blocks are fixedly connected to the first uprights, and the top ends of the two first uprights are fixedly connected to the detection box.

[0008] It can be seen that the above technical solution is designed to facilitate the positioning of the electromagnetic pin puller.

[0009] Furthermore, two indicator lights are fixedly installed on the top of the detection box near the front edge, and these two indicator lights serve as prompts.

[0010] Furthermore, a first gasket is fixedly connected at the center of the top of the shelf, wherein the first gasket serves to buffer the electromagnetic puller.

[0011] Furthermore, a fixing assembly is provided between the bottom frame and the shelf, the fixing assembly including a self-locking motor, a gear rod, two toothed plates, two pressing plates, two second gaskets and two limiting rods.

[0012] Furthermore, the self-locking motor is fixedly installed at the bottom end of the base frame, and the output shaft end of the self-locking motor is fixedly connected to the gear rod. The two toothed plates are meshed with the gear rod on opposite sides. The bottom ends of the two extrusion plates pass through the storage plate and are fixedly connected to the two toothed plates respectively. The two extrusion plates are fixedly connected to the two second gaskets on opposite sides respectively.

[0013] Furthermore, one end of each of the two limiting rods passes through the two extrusion plates, and both limiting rods are fixedly installed at the front and rear ends of the bottom frame.

[0014] As can be seen, in the above technical solution, the two limiting rods restrict the rotation of the two toothed plates.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model uses a stepper motor to drive the electromagnetic pin puller to move horizontally. When the electromagnetic pin puller is directly below the main body of the laser displacement sensor, the main body of the laser displacement sensor detects the real-time distance change of the pin from extension to retraction. When the electromagnetic pin puller moves directly below the main body of the electromagnetic ultrasonic detector, the main body of the electromagnetic ultrasonic detector identifies problems such as micro-cracks and surface defects at the root of the pin. The operation is simple and effectively improves the detection effect.

[0017] 2. This utility model uses a self-locking motor to drive a gear rod to rotate. The gear rod can drive two toothed plates to move towards each other, thereby driving two pressing plates and two second shims to move towards each other. The two pressing plates and two second shims press and fix the electromagnetic pin puller, thus preventing the electromagnetic pin puller from deflecting during movement. At the same time, the second shims can prevent the pressing plates from rigidly contacting the electromagnetic pin puller. The structure is simple and easy to use. Attached Figure Description

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the detection box and fixing components of this utility model;

[0021] Figure 3 This is a schematic diagram of the main assembly structure of the detection box and the laser displacement sensor of this utility model;

[0022] Figure 4 This is a schematic diagram of the assembly structure of the mobile component and the fixed component of this utility model;

[0023] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0024] In the diagram: 1. Detection box; 2. Box door; 3. Laser displacement sensor body; 4. Electromagnetic ultrasonic detector body; 5. Moving component; 6. Indicator light; 7. First gasket; 8. Fixing component; 9. First upright; 10. First conductive block; 501. Stepper motor; 502. Lead screw; 503. Base frame; 504. Shelf; 505. Slide rod; 506. Second upright; 507. Second conductive block; 801. Self-locking motor; 802. Gear rod; 803. Toothed plate; 804. Extrusion plate; 805. Second gasket; 806. Limiting rod. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Refer to the instruction manual appendix Figure 1-5 This embodiment of a non-destructive testing device for the pin-pulling capability of an electromagnetic pin puller includes a testing box 1 and a box door 2. The box door 2 is movably connected to the front side of the testing box 1 via a hinge. A laser displacement sensor body 3 and an electromagnetic ultrasonic detector body 4 are fixedly embedded in the top of the testing box 1. A moving component 5 is provided on the testing box 1. The moving component 5 includes a stepper motor 501, a lead screw 502, a bottom frame 503, a shelf 504, a slide rod 505, a second upright 506, and a second conductive block 507. The stepper motor 501 is fixedly installed on one side of the testing box 1, and the output shaft end of the stepper motor 501 is fixedly connected to the lead screw 502. Both ends of the lead screw 502 are movably connected to the testing box 1 via bearings, and the outer side of the lead screw 502 is threadedly connected to the bottom frame 503. The top of the bottom frame 503 is fixedly connected to the shelf 504. One end of the slide rod 505 passes through the bottom frame 503, and the bottom frame 503 is fixedly installed inside both ends of the testing box 1.

[0027] Furthermore, the bottom end of the second conductive block 507 is fixedly connected to the second upright 506, and two first conductive blocks 10 are provided on the top of the second conductive block 507. The top ends of the two first conductive blocks 10 are fixedly connected to the first upright 9, and the top ends of the two first upright 9 are fixedly connected to the detection box 1. Two indicator lights 6 are fixedly installed on the top of the detection box 1 near the front edge, and the two indicator lights 6 serve as prompts.

[0028] Furthermore, a first gasket 7 is fixedly connected at the center of the top of the shelf 504, wherein the first gasket 7 serves to buffer the electromagnetic puller.

[0029] Furthermore, a fixing assembly 8 is provided between the bottom frame 503 and the shelf 504. The fixing assembly 8 includes a self-locking motor 801, a gear rod 802, two toothed plates 803, two pressing plates 804, two second gaskets 805, and two limiting rods 806. The self-locking motor 801 is fixedly installed at the bottom end of the bottom frame 503, and the output shaft end of the self-locking motor 801 is fixedly connected to the gear rod 802. The opposing sides of the two toothed plates 803 are engaged with the gear rod 802. The bottom ends of the two pressing plates 804 pass through the shelf 504 and are fixedly connected to the two toothed plates 803 respectively. The opposing sides of the two pressing plates 804 are fixedly connected to the two second gaskets 805 respectively. One end of each of the two limiting rods 806 passes through the two pressing plates 804, and the two limiting rods 806 are fixedly installed at the front and rear ends of the bottom frame 503.

[0030] The self-locking motor 801 is activated, which drives the gear rod 802 to rotate. Since both toothed plates 803 mesh with the gear rod 802, and the two limit rods 806 restrict the rotation of the two toothed plates 803, the gear rod 802 can drive the two toothed plates 803 to move towards each other, thereby driving the two pressing plates 804 and the two second shims 805 to move towards each other. The two pressing plates 804 and the two second shims 805 press and fix the electromagnetic pin puller, thereby preventing the electromagnetic pin puller from deflecting during movement. At the same time, the second shims 805 can prevent the pressing plates 804 from making rigid contact with the electromagnetic pin puller. The structure is simple and easy to use.

[0031] The usage method of this embodiment is as follows:

[0032] In use, the operator places the electromagnetic pin puller in the detection box 1, and the shelf 504 and the first pad 7 can support the electromagnetic pin puller. The electromagnetic pin puller is pressed and fixed by the fixing component 8. Then, the stepper motor 501 is started. The stepper motor 501 drives the lead screw 502 to rotate. Since the lead screw 502 is threadedly connected to the bottom frame 503, and the slide rod 505 restricts the rotation of the bottom frame 503, the lead screw 502 can drive the bottom frame 503 and the shelf 504 to move horizontally, thereby driving the electromagnetic pin puller to move horizontally, and then driving the second upright 506 and the second conductive block 507 to move horizontally. When the second conductive block 507 contacts one of the first conductive blocks 10, one of the indicator lights 6 lights up red. At this time, it reminds the operator that the electromagnetic pin puller is located directly below the laser displacement sensor body 3. The laser displacement sensor body 3 emits a laser beam, which irradiates the pin head of the electromagnetic pin puller. The distance change is calculated using the reflected light, and the displacement curve is output in real time without contact interference. The real-time distance change of the pin from extension to retraction is recorded.

[0033] When the electromagnetic pin puller moves directly below the main body 4 of the electromagnetic ultrasonic detector, the main body 4 of the electromagnetic ultrasonic detector uses electromagnetic induction and ultrasonic wave propagation characteristics to identify problems such as micro-cracks and surface defects at the root of the pin without contacting or damaging the pin. The operation is simple and effectively improves the detection effect.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for nondestructive testing of the pin-pulling capacity of an electromagnetic pin-puller, comprising a testing box (1) and a box door (2), the box door (2) being movably connected to the front side of the testing box (1) by a hinge, characterized in that: The top of the detection box (1) is fixedly embedded with a laser displacement sensor body (3) and an electromagnetic ultrasonic detector body (4). The detection box (1) is provided with a moving component (5). The moving component (5) includes a stepper motor (501), a lead screw (502), a bottom frame (503), a shelf (504), a slide rod (505), a second upright (506), and a second conductive block (507). The stepper motor (501) is fixedly installed on one side of the detection box (1), and the output shaft end of the stepper motor (501) is fixedly connected to the lead screw (502). Both ends of the lead screw (502) are movably connected to the detection box (1) through bearings, and the outer side of the lead screw (502) is threadedly connected to the bottom frame (503). The top of the bottom frame (503) is fixedly connected to the shelf (504). One end of the slide rod (505) passes through the bottom frame (503), and the bottom frame (503) is fixedly installed inside both ends of the detection box (1).

2. The electromagnetic pin extractor's pin extraction capability nondestructive testing device according to claim 1, characterized in that: The bottom end of the second conductive block (507) is fixedly connected to the second upright (506). The top of the second conductive block (507) is provided with two first conductive blocks (10). The top ends of the two first conductive blocks (10) are fixedly connected to the first upright (9), and the top ends of the two first uprights (9) are fixedly connected to the detection box (1).

3. The electromagnetic pin extractor capability nondestructive testing device of claim 1, wherein: Two indicator lights (6) are fixedly installed at the top of the detection box (1) near the front edge, and the two indicator lights (6) serve as prompts.

4. The electromagnetic pin extractor capability nondestructive testing device of claim 1, wherein: A first gasket (7) is fixedly connected at the top center of the shelf (504), wherein the first gasket (7) serves to buffer the electromagnetic puller.

5. The non-destructive testing device for the pin-pulling capability of the electromagnetic pin puller according to claim 1, characterized in that: A fixing component (8) is provided between the bottom frame (503) and the shelf (504). The fixing component (8) includes a self-locking motor (801), a gear rod (802), two toothed plates (803), two pressing plates (804), two second gaskets (805), and two limiting rods (806).

6. The non-destructive testing device for the pin-pulling capability of the electromagnetic pin puller according to claim 5, characterized in that: The self-locking motor (801) is fixedly installed at the bottom end of the base frame (503), and the output shaft end of the self-locking motor (801) is fixedly connected to the gear rod (802). The two toothed plates (803) are meshed with the gear rod (802) on opposite sides. The bottom ends of the two extrusion plates (804) pass through the shelf (504) and are fixedly connected to the two toothed plates (803) respectively. The two extrusion plates (804) are fixedly connected to the two second gaskets (805) on opposite sides respectively.

7. The non-destructive testing device for the pin-pulling capability of the electromagnetic pin puller according to claim 5, characterized in that: One end of each of the two limiting rods (806) passes through the two extrusion plates (804), and the two limiting rods (806) are fixedly installed at the front and rear ends of the bottom frame (503).

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