Explosion-proof fire attack product measuring device

By using explosion-proof vision and height detection components, automated detection of pyrotechnics has been achieved, solving the problems of measurement accuracy and safety of detonation tubes, and improving detection efficiency and safety.

CN224499401UActive Publication Date: 2026-07-14SHANXI TONGCHUANG INTELLIGENT MFG CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI TONGCHUANG INTELLIGENT MFG CO LTD
Filing Date
2025-07-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing technologies, when measuring cylindrical pyrotechnic devices such as detonating tubes, the probe contact causes deformation of the aluminum foil, reducing measurement accuracy. Furthermore, the heat generated by laser scanners affects explosion-proof performance, making it difficult to achieve high-precision and safe testing.

Method used

It adopts explosion-proof visual inspection components and explosion-proof height detection components, uses a camera to collect image information of pyrotechnics, and a spectral confocal displacement sensor to detect height, avoiding probe contact and laser heat. It integrates feeding, rotation and detection mechanisms to achieve automated detection.

Benefits of technology

It improves the safety and accuracy of testing, shortens testing time, meets the needs of large-scale production, and ensures that the quality of pyrotechnic products meets technical requirements.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224499401U_ABST
    Figure CN224499401U_ABST
Patent Text Reader

Abstract

This utility model relates to an explosion-proof measuring device for incendiary items, including a frame and a feeding mechanism, a rotating transfer mechanism, an explosion-proof visual inspection component, and an explosion-proof height detection component mounted on it. The feeding mechanism, the explosion-proof visual inspection component, and the explosion-proof height detection component are circumferentially located outside the rotating transfer mechanism. Two explosion-proof visual inspection components are spaced apart vertically for detecting the bottom and top surfaces of the incendiary items, and include a mounting rod, an explosion-proof camera housing, and a camera. The explosion-proof height detection component has a support plate and two explosion-proof height detection mechanisms mounted on it vertically. Each explosion-proof height detection mechanism includes a first linear module, a sensor explosion-proof housing, and a spectral confocal displacement sensor. This device avoids deformation caused by probe contact detection, which leads to reduced detection accuracy, and avoids heat or sparks generated by laser detection, thus solving the problem of explosion-proof detection.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, specifically to an explosion-proof fire attack measuring device. Background Technology

[0002] Explosives are a general term for disposable components and devices containing gunpowder or explosives that, upon exposure to external stimuli, will burn or explode to ignite the gunpowder, detonate the explosive, or perform mechanical work. They include percussion caps, primers, ignition tubes, delay devices, detonators, detonating cords, fuses, detonating wires, as well as explosive switches, explosive bolts, starters, and cutting cords.

[0003] For cylindrical incendiary components such as detonating tubes, testing is required during the sample or manufacturing stages to meet technical requirements. Tests include the overall appearance and dimensions of the incendiary component. Dimensional testing typically utilizes laser scanners or comparative measuring instruments. Comparative measuring instruments employ probes controlled by robotic arms, obtaining dimensional information through contact between the probes and the component. However, detonating tubes contain gunpowder, and their ends are usually sealed with thin aluminum foil. When tested with probes, the aluminum foil is prone to deformation, reducing measurement accuracy. Furthermore, laser scanners generate heat during use, affecting explosion-proof performance. Therefore, designing a device capable of measuring cylindrical incendiary components like detonating tubes has become a pressing technical problem for those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an explosion-proof measuring device for incendiary items, thereby solving the aforementioned problems in the current measurement of incendiary items.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An explosion-proof incendiary item measuring device includes a frame and a feeding mechanism, a rotating transfer mechanism, an explosion-proof visual inspection component, and an explosion-proof height detection component mounted on the frame. The feeding mechanism, the explosion-proof visual inspection component, and the explosion-proof height detection component are circumferentially arranged outside the rotating transfer mechanism. Two explosion-proof visual inspection components are spaced apart along the vertical direction, respectively used to detect the bottom and top surfaces of the incendiary item. Each explosion-proof visual inspection component includes a mounting rod, a camera explosion-proof housing, and a camera. The mounting rod is mounted on the frame, the camera explosion-proof housing is mounted on the mounting rod, and the camera is mounted on... The camera is placed in the explosion-proof box and is used to acquire image information of the top and bottom surfaces of the incendiary item. The explosion-proof height detection component includes a support plate and two explosion-proof height detection mechanisms that are spaced apart from each other on the support plate in the vertical direction. Each explosion-proof height detection mechanism includes a first linear module, a sensor explosion-proof box, and a spectral confocal displacement sensor. The first linear module is placed on the support plate, the sensor explosion-proof box is placed on the first linear module, and the spectral confocal displacement sensor is placed in the sensor explosion-proof box. The spectral confocal displacement sensor is used to detect the height of the incendiary item.

[0007] Furthermore, the feeding mechanism includes a second linear module, a top mounting plate, and a fire-attack product fixture. The second linear module is mounted on the frame, the top mounting plate is connected to the second linear module, and the fire-attack product fixture is located at the upper end of the top mounting plate. The fire-attack product fixture is hollowed out for placing the fire-attack product to be tested. The second linear module is used to drive the fire-attack product fixture to move up and down.

[0008] Furthermore, an explosion-proof photoelectric switch is provided on the top mounting plate below the fire attack fixture, and the explosion-proof photoelectric switch is correspondingly provided with the fire attack fixture.

[0009] Furthermore, the rotating transfer mechanism includes a hollow rotating platform, a hollow rotating plate, and an electric gripper. The hollow rotating platform is mounted on the frame, and the electric gripper is connected to the hollow rotating platform via the hollow rotating plate. The hollow rotating platform can drive the electric gripper to rotate on a horizontal plane, and the electric gripper is used to grip the fire-attacked product located on the feeding mechanism.

[0010] Furthermore, the camera explosion-proof box is provided with a camera viewing window on the end face corresponding to the fire-attack item.

[0011] Furthermore, a sensor viewing window is provided on the end face of the sensor explosion-proof box corresponding to the fire-attack item.

[0012] Furthermore, a camera mounting block is provided on the mounting rod, and the camera explosion-proof box is mounted on the mounting rod via the camera mounting block.

[0013] The beneficial effects of this utility model are:

[0014] This invention relates to an explosion-proof measuring device for incendiary items. It employs an explosion-proof visual inspection component and an explosion-proof height detection component, avoiding the problem of deformation caused by direct contact between the probe and the incendiary item, which reduces detection accuracy. It also avoids the heat or sparks generated by laser detection, thus solving the problem of explosion-proof detection. The explosion-proof visual inspection component acquires images of the top and bottom surfaces of the incendiary item using a camera, while the explosion-proof height detection component uses a spectral confocal displacement sensor to detect the height of the incendiary item. The entire detection process generates no heat or sparks, effectively solving the problem of explosion-proof detection, greatly improving the safety of the detection process, and ensuring a safe and stable production environment. Furthermore, this device integrates a feeding mechanism, a rotating transfer mechanism, the explosion-proof visual inspection component, and the explosion-proof height detection component. These mechanisms work collaboratively to achieve automated feeding, transfer, and detection of incendiary items.

[0015] Furthermore, the rotating transfer mechanism utilizes a hollow rotating platform to drive electric grippers to rotate on a horizontal plane, enabling the rapid and precise movement of the fire-damaged items to various inspection stations. The explosion-proof visual inspection component and explosion-proof height inspection component can automatically complete the inspection of the appearance and dimensions of the fire-damaged items. Compared with traditional manual or semi-automatic inspection methods, this device significantly shortens the inspection time and improves inspection efficiency, meeting the needs of large-scale production.

[0016] Furthermore, two explosion-proof visual inspection components are spaced apart vertically, one for inspecting the bottom surface and the other for inspecting the top surface of the flammable material, providing comprehensive and accurate information about its appearance. The camera is housed in an explosion-proof camera housing with a viewing window, protecting the camera and ensuring the clarity and accuracy of the captured images. The explosion-proof height detection component includes two explosion-proof height detection mechanisms spaced apart vertically on a support plate. Two spectral confocal displacement sensors detect the height of different positions on the flammable material, enabling more precise height information and reducing measurement errors. These high-precision inspection results help identify problems with the flammable material promptly, ensuring its quality meets technical requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the explosion-proof fire attack measuring device of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the explosion-proof fire attack measuring device of this utility model after removing the frame;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure after removing the camera explosion-proof box and the sensor explosion-proof box;

[0020] Figure 4 This is a schematic diagram of the feeding mechanism in the explosion-proof fire attack product measuring device of this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating transfer mechanism in the explosion-proof fire attack product measuring device of this utility model;

[0022] Figure 6 This is a schematic diagram of the explosion-proof visual inspection component in the explosion-proof fire attack product measuring device of this utility model;

[0023] Figure 7 This is a schematic diagram of the explosion-proof height detection mechanism in the explosion-proof fire attack measuring device of this utility model.

[0024] The names corresponding to each mark in the diagram:

[0025] 1. Rack,

[0026] 2. Feeding mechanism; 21. Second linear module; 22. Top block mounting plate; 23. Fire-resistant jig; 24. Explosion-proof photoelectric switch.

[0027] 3. Rotary transplanting mechanism; 31. Hollow rotating platform; 32. Hollow rotating plate; 33. Electric gripper.

[0028] 4. Explosion-proof visual inspection assembly; 41. Mounting rod; 42. Camera explosion-proof box; 43. Camera; 44. Camera mounting block; 45. Camera viewing window glass.

[0029] 5. Explosion-proof height detection component; 51. Support plate; 52. Explosion-proof height detection mechanism; 521. First linear module; 522. Sensor explosion-proof box; 523. Spectral confocal displacement sensor; 524. Sensor window glass. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] The overall structure of this explosion-proof incendiary measuring device is as follows: Figure 1-7 As shown, it mainly includes a frame 1 and a feeding mechanism 2, a rotary transfer mechanism 3, an explosion-proof visual inspection component 4, and an explosion-proof height detection component 5, all mounted on the frame 1. The feeding mechanism 2, the explosion-proof visual inspection component 4, and the explosion-proof height detection component 5 are arranged circumferentially outside the rotary transfer mechanism 3, forming a reasonable layout to achieve automated inspection of the fire-attack items.

[0032] It should be noted that in this embodiment, the explosion-proof incendiary device is described in detail using a cylindrical incendiary device such as a detonating tube as the test object. This type of incendiary device is generally cylindrical, filled with gunpowder, and its two ends are sealed with aluminum foil or similar plugs.

[0033] like Figures 2-4 As shown, the feeding mechanism 2 includes a second linear module 21, a top mounting plate 22, and a welding product fixture 23. The second linear module 21 is fixedly mounted on the frame 1. The top mounting plate 22 is connected to the slider of the second linear module 21, and the welding product fixture 23 is located at the upper end of the top mounting plate 22. The welding product fixture 23 adopts a hollow design, which facilitates the placement of the welding products to be tested. The second linear module 21 drives the lead screw to rotate through its internal motor, which in turn drives the slider to move up and down, thereby driving the welding product fixture 23 to move up and down, realizing the feeding action of the welding products.

[0034] An explosion-proof photoelectric switch 24 is installed on the top mounting plate 22, below the fire-attack product fixture 23. The explosion-proof photoelectric switch 24 is correspondingly installed to the fire-attack product fixture 23. When the fire-attack product is placed on the fire-attack product fixture 23, it will block the light emitted by the explosion-proof photoelectric switch 24. The explosion-proof photoelectric switch 24 transmits a signal to the control system to confirm that the fire-attack product has been placed in place, providing accurate signal feedback for subsequent testing processes.

[0035] like Figure 5 As shown, the rotating transfer mechanism 3 includes a hollow rotating platform 31, a hollow rotating plate 32, and an electric gripper 33. The hollow rotating platform 31 is mounted on the frame 1, and the electric gripper 33 is connected to the hollow rotating platform 31 via the hollow rotating plate 32. The hollow rotating platform 31 has a precision transmission structure inside, which drives the internal gears to rotate via a motor, thereby driving the hollow rotating plate 32 to rotate on the horizontal plane, and thus driving the electric gripper 33 to rotate on the horizontal plane. The electric gripper 33 has two openable grippers. When it is necessary to grip the sample located on the feeding mechanism 2, the grippers of the electric gripper 33 close, tightly gripping the sample; when it is necessary to move the sample to another inspection position, the hollow rotating platform 31 drives the electric gripper 33 to rotate to the corresponding position; after inspection, the electric gripper 33 releases the grippers and puts the sample down.

[0036] like Figure 3 and Figure 6As shown, two explosion-proof visual inspection components 4 are spaced apart along the vertical direction, used to inspect the bottom and top surfaces of the incendiary item, respectively. Each explosion-proof visual inspection component 4 includes a mounting rod 41, a camera explosion-proof box 42, and a camera 43. The mounting rod 41 is fixedly mounted on the frame 1, and a camera mounting block 44 is provided on the mounting rod 41. The camera explosion-proof box 42 is mounted on the mounting rod 41 via the camera mounting block 44. This mounting method facilitates adjustment of the position and angle of the camera explosion-proof box 42. The camera 43 is housed in the camera explosion-proof box 42, and a camera viewing window 45 is provided on the end face of the camera explosion-proof box 42 corresponding to the incendiary item. The camera 43 acquires image information of the top and bottom surfaces of the incendiary item through the camera viewing window 45. The camera viewing window 45 not only protects the camera 43 but also ensures that the camera 43's field of view is not affected. The camera 43 transmits the acquired image information to the control system, which analyzes the image using image processing algorithms to obtain information such as the appearance and dimensions of the incendiary item.

[0037] like Figure 7 As shown, the explosion-proof height detection assembly 5 includes a support plate 51 and two explosion-proof height detection mechanisms 52 arranged at intervals along the vertical direction on the support plate 51. Each explosion-proof height detection mechanism 52 includes a first linear module 521, a sensor explosion-proof box 522, and a spectral confocal displacement sensor 523. The first linear module 521 is disposed on the support plate 51, the sensor explosion-proof box 522 is disposed on the first linear module 521, and the spectral confocal displacement sensor 523 is disposed in the sensor explosion-proof box 522. A sensor viewing window glass 524 is disposed on the end face of the sensor explosion-proof box 522 corresponding to the fire-attack item. In this embodiment, a spectral confocal displacement sensor is used.

[0038] During height detection, the first linear module 521 drives the sensor explosion-proof box 522 to move up and down. The spectral confocal displacement sensor 523 emits a detection signal through the sensor window glass 524. When the detection signal encounters the surface of the incendiary object, it will be reflected back. The spectral confocal displacement sensor 523 calculates the distance to the surface of the incendiary object based on the time difference between the emitted and received signals. The two explosion-proof height detection mechanisms 52 detect the height of the incendiary object at different positions respectively. By calculating the difference or average value between the two, the accurate height information of the incendiary object is obtained and transmitted to the control system.

[0039] The working principle of this explosion-proof incendiary item measuring device is as follows:

[0040] First, the item to be inspected is placed on the fixture 23 of the feeding mechanism 2. After the explosion-proof photoelectric switch 24 detects that the item is in place, it transmits a signal to the control system. Then, the electric gripper 33 of the rotating transfer mechanism 3 picks up the item. At this time, the control system controls the second linear module 21 to drive the fixture 23 to descend. The hollow rotating platform 31 drives the electric gripper 33 to rotate, moving the item below the two explosion-proof visual inspection components 4. The camera 43 collects the top and bottom surface images of the item and transmits them to the control system. Next, the electric gripper 33 moves the item to the front of the explosion-proof height detection component 5. The spectral confocal displacement sensor 523 detects the height information of the item and transmits it to the control system. Finally, the control system performs a comprehensive analysis of the collected image and height information to determine whether the item is qualified, completing the entire inspection process.

[0041] This explosion-proof incendiary item measuring device, through the coordinated operation of the aforementioned mechanisms, achieves automated detection of incendiary items with explosion-proof internal contents, avoiding problems such as heat or sparks that may be generated when using probe detection, thus improving the safety and accuracy of the detection.

[0042] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.

Claims

1. A device for measuring explosion-proof incendiary items, characterized in that: The system includes a frame and a feeding mechanism, a rotating transfer mechanism, an explosion-proof visual inspection component, and an explosion-proof height detection component mounted on the frame. The feeding mechanism, the explosion-proof visual inspection component, and the explosion-proof height detection component are circumferentially arranged outside the rotating transfer mechanism. Two explosion-proof visual inspection components are spaced apart along the vertical direction, respectively used to detect the bottom and top surfaces of the incendiary item. Each explosion-proof visual inspection component includes a mounting rod, a camera explosion-proof box, and a camera. The mounting rod is mounted on the frame, the camera explosion-proof box is mounted on the mounting rod, and the camera is housed in the camera explosion-proof box. The camera is used to acquire image information of the top and bottom surfaces of the incendiary item. The explosion-proof height detection component includes a support plate and two explosion-proof height detection mechanisms spaced apart along the vertical direction on the support plate. Each explosion-proof height detection mechanism includes a first linear module, a sensor explosion-proof box, and a spectral confocal displacement sensor. The first linear module is mounted on the support plate, the sensor explosion-proof box is mounted on the first linear module, and the spectral confocal displacement sensor is housed in the sensor explosion-proof box. The spectral confocal displacement sensor is used to detect the height of the incendiary item.

2. The explosion-proof incendiary measuring device according to claim 1, characterized in that: The feeding mechanism includes a second linear module, a top mounting plate, and a fire-attack product fixture. The second linear module is mounted on the frame, and the top mounting plate is connected to the second linear module. The fire-attack product fixture is located at the upper end of the top mounting plate and has a hollowed-out design for placing the fire-attack product to be tested. The second linear module is used to drive the fire-attack product fixture to move up and down.

3. The explosion-proof incendiary measuring device according to claim 2, characterized in that: An explosion-proof photoelectric switch is provided on the top mounting plate below the fire attack fixture, and the explosion-proof photoelectric switch is correspondingly provided to the fire attack fixture.

4. The explosion-proof incendiary measuring device according to claim 1, characterized in that: The rotating transfer mechanism includes a hollow rotating platform, a hollow rotating plate, and an electric gripper. The hollow rotating platform is mounted on the frame, and the electric gripper is connected to the hollow rotating platform via the hollow rotating plate. The hollow rotating platform can drive the electric gripper to rotate on a horizontal plane, and the electric gripper is used to grip the fire-attacked products located on the feeding mechanism.

5. The explosion-proof incendiary measuring device according to claim 1, characterized in that: The camera explosion-proof box has a camera viewing window glass on the end face corresponding to the fire-attack item.

6. The explosion-proof incendiary measuring device according to claim 1, characterized in that: The sensor explosion-proof box has a sensor viewing window glass on the end face corresponding to the fire attack item.

7. The explosion-proof incendiary measuring device according to claim 1, characterized in that: A camera mounting block is provided on the mounting rod, and the camera explosion-proof box is mounted on the mounting rod through the camera mounting block.