Projectile striking detection device structure adopting strain gauge weighing sensor

Abstract

The utility model provides a bullet striking detection device structure adopting a strain gauge weighing sensor, which comprises a box body, and a control panel is arranged in the center of the bottom of the inner wall of the box body; the plurality of strain gauges are respectively mounted at the bottom of the inner wall of the box body and are positioned at four corners of the control panel; and the steel plate cover is arranged above the box body. According to the bullet striking detection device structure adopting the strain gauge weighing sensor, the steel plate cover is arranged on the box body with the control panel and the plurality of strain gauges, so that the problem that the sensing capability of the strain gauges is reduced due to direct adhesion can be effectively solved, and the durability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of equipment testing, and in particular to a structure of a projectile impact testing device using a strain gauge weighing sensor. Background Technology

[0002] Strain gauge load cell technology has been widely used in various detection fields. This technology utilizes the high sensitivity of resistance strain gauges to accurately capture the minute deformations caused by impact, thereby achieving accurate measurement of projectile velocity and force.

[0003] When designing a projectile impact detection device, the connection method between the impact surface and the resistance strain gauge is a key factor. To ensure the sensitivity of the detection response, the strain gauge is usually not directly bonded to the impact surface. This is because direct bonding may limit the strain gauge's ability to sense minute deformations. Although directly fixing the strain gauge to the impact surface using an adhesive process can ensure accurate detection of the deformation generated by the impact surface when the projectile impact force reaches a certain range, direct bonding may also restrict the movement of the strain gauge, thus affecting its overall ability to sense minute deformations. Secondly, the huge impact force generated during projectile impact may damage or deform the directly bonded strain gauge, reducing the service life of the device and increasing maintenance costs.

[0004] Therefore, it is necessary to provide a structure for a projectile impact detection device using a strain gauge weighing sensor to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a structure for a projectile impact detection device using a strain gauge weighing sensor, which solves the problem that the huge impact force generated during projectile impact may cause damage and deformation of the directly adhered strain gauges, reducing the service life of the device and increasing maintenance costs.

[0006] To solve the above-mentioned technical problems, this utility model provides a projectile impact detection device structure using a strain gauge weighing sensor, comprising:

[0007] The box body has a control panel installed at the center of the bottom of the inner wall of the box body;

[0008] Multiple strain gauges are respectively installed on the bottom of the inner wall of the housing and located at the four corners of the control panel;

[0009] A steel plate cover is disposed on top of the box body.

[0010] Preferably, a mounting base is installed at the bottom of the inner wall of the housing and on one side of the strain gauge.

[0011] Preferably, bolts are provided between the steel plate cover and the mounting base.

[0012] Preferably, the mounting base is used for positioning the steel plate cover and the box body during installation.

[0013] Preferably, a fixing component is provided between the box body and the steel plate cover, the fixing component including a fixing seat, and an L-shaped fixing block is provided inside the fixing seat.

[0014] Preferably, a spring is fitted onto the surface of the L-shaped fixing block.

[0015] Preferably, the surface of the L-shaped fixing block is fitted with a fixing sleeve.

[0016] Compared with related technologies, the projectile impact detection device structure using a strain gauge weighing sensor provided by this utility model has the following beneficial effects:

[0017] This utility model provides a structure for a projectile impact detection device using strain gauge weighing sensors. The steel plate cover on the box containing the control board and multiple strain gauges can effectively solve the problem of reduced strain gauge sensing ability caused by direct adhesion and improve the durability of the device. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a first embodiment of a projectile impact detection device using a strain gauge weighing sensor provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the overall internal structure of the device.

[0020] Figure 3 for Figure 1 Side view of the entire device shown;

[0021] Figure 4 A schematic diagram of the structure of a second embodiment of a projectile impact detection device using a strain gauge weighing sensor provided by this utility model;

[0022] Figure 5 for Figure 4 The enlarged schematic diagram of part A is shown.

[0023] The following are the labels in the diagram: 1. Box body, 2. Control board, 3. Strain gauge, 4. Mounting base, 5. Steel plate cover, 6. Bolt, 7. Fixing assembly, 71. Fixing base, 72. L-shaped fixing block, 73. Spring, 74. Fixing sleeve. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a projectile impact detection device using a strain gauge weighing sensor provided by this utility model; Figure 2 for Figure 1 The diagram shows the overall internal structure of the device. Figure 3 for Figure 1 The diagram shows a side view of the overall device. A structure for a projectile impact detection device employing a strain gauge weighing sensor includes:

[0027] Box 1, wherein a control panel 2 is installed at the center of the bottom of the inner wall of the box 1;

[0028] Multiple strain gauges 3 are respectively installed at the bottom of the inner wall of the housing 1 and at the four corners of the control plate 2;

[0029] A steel plate cover 5 is disposed above the box body 1.

[0030] A mounting base 4 is installed at the bottom of the inner wall of the housing 1 and on one side of the strain gauge 3.

[0031] A bolt 6 is provided between the steel plate cover 5 and the mounting base 4.

[0032] The mounting base 4 is used for positioning the steel plate cover 5 and the box body 1 during installation.

[0033] The entire device uses three 2mm thick steel plates, three sets of four resistance strain gauge pressure sensors (each set has mounting holes), twelve 10mm long copper columns, and several column head screws. The specific connection method is as follows: Figure 1 , Figure 2 , Figure 3 As shown.

[0034] During installation, considering that the strain gauge should be placed as close as possible to the expected impact area of ​​the projectile to ensure accurate deformation detection, the fixing method of the impact surface should ensure that it can freely generate minute deformations during impact so that the strain gauge can accurately detect the deformation. At the same time, in order to reduce the risk of deformation or damage to the strain gauge itself caused by the projectile impact, which may affect the detection effect, a rigid connection method is more suitable. The specific solution is as follows:

[0035] Directly bonding strain gauges to the impact surface can lead to several problems. First, direct bonding may restrict the movement of the strain gauge, thus affecting its ability to detect minute deformations. Second, the enormous impact force generated during projectile impact may damage directly bonded strain gauges. Therefore, using special adhesives and bonding processes can maintain a tight bond between the strain gauge and the impact surface while allowing necessary minute movement, thereby improving the sensitivity of detection and the durability of the strain gauge.

[0036] The reason for choosing steel plates for the impact surface is that steel plates have high hardness and strength, and can withstand the high-speed impact of projectiles. These physical properties of steel plates make them an ideal material because they can produce measurable deformation during impact while maintaining structural stability. In addition, steel plates have good machinability and cost-effectiveness, making them the preferred material for projectile impact detection devices.

[0037] By taking the above measures, a more sensitive and reliable projectile impact detection device can be designed.

[0038] Compared with related technologies, the projectile impact detection device structure using a strain gauge weighing sensor provided by this utility model has the following beneficial effects:

[0039] This utility model provides a structure for a projectile impact detection device using strain gauge weighing sensors. The steel plate cover 5 on the box 1 with control board 2 and multiple strain gauges 3 can effectively solve the problem of reduced strain gauge sensing ability caused by direct adhesion and improve the durability of the device.

[0040] Second Embodiment

[0041] Please refer to the following: Figure 4 and Figure 5 Based on the first embodiment of this application, which provides a projectile impact detection device structure using a strain gauge load cell, the second embodiment of this application proposes another projectile impact detection device structure using a strain gauge load cell. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0042] Specifically, the difference in the structure of the projectile impact detection device using a strain gauge weighing sensor provided in the second embodiment of this application is that, in the projectile impact detection device structure using a strain gauge weighing sensor, a fixing component 7 is provided between the housing 1 and the steel plate cover 5, the fixing component 7 includes a fixing seat 71, and an L-shaped fixing block 72 is provided inside the fixing seat 71.

[0043] The fixing seat 71 is connected to the side of the box body 1, and the L-shaped fixing block 72 is connected to the side of the steel plate cover 5. A fixing through hole adapted to the L-shaped fixing block 72 is provided inside the fixing seat 71.

[0044] A spring 73 is fitted onto the surface of the L-shaped fixing block 72.

[0045] The surface of the L-shaped fixing block 72 is fitted with a fixing sleeve 74.

[0046] The working principle of the projectile impact detection device using a strain gauge weighing sensor provided by this utility model is as follows:

[0047] When using the steel plate cover 5 and the box body 1, first remove the fixing sleeve 74 on the L-shaped fixing block 72. After the fixing sleeve 74 is removed, remove the spring 73 on the L-shaped fixing block 72. After the spring 73 is removed, separate the L-shaped fixing block 72 from the fixing seat 71 by pulling it.

[0048] Compared with related technologies, the projectile impact detection device structure using a strain gauge weighing sensor provided by this utility model has the following beneficial effects:

[0049] This utility model provides a structure for a projectile impact detection device using a strain gauge weighing sensor. A fixing component 7 is provided between the housing 1 and the steel plate cover 5 to facilitate the disassembly and replacement of the steel plate cover 5 after long-term use.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A structure for a projectile impact detection device employing a strain gauge weighing sensor, characterized in that, include: The box body has a control panel installed at the center of the bottom of the inner wall of the box body; Multiple strain gauges are respectively installed on the bottom of the inner wall of the housing and located at the four corners of the control panel; A steel plate cover is disposed on top of the box body.

2. The structure of the projectile impact detection device using a strain gauge weighing sensor according to claim 1, characterized in that, A mounting base is installed at the bottom of the inner wall of the housing and on one side of the strain gauge.

3. The structure of the projectile impact detection device using a strain gauge weighing sensor according to claim 2, characterized in that, Bolts are provided between the steel plate cover and the mounting base.

4. The structure of the projectile impact detection device using a strain gauge weighing sensor according to claim 3, characterized in that, The mounting base is used for positioning the steel plate cover and the box body during installation.

5. The structure of the projectile impact detection device using a strain gauge weighing sensor according to claim 3, characterized in that, A fixing component is provided between the box body and the steel plate cover. The fixing component includes a fixing base, and an L-shaped fixing block is provided inside the fixing base.

6. The structure of the projectile impact detection device using a strain gauge weighing sensor according to claim 5, characterized in that, A spring is fitted onto the surface of the L-shaped fixing block.

7. The structure of the projectile impact detection device using a strain gauge weighing sensor according to claim 6, characterized in that, The surface of the L-shaped fixing block is fitted with a fixing sleeve.

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