Device and method for quickly measuring the angle between a gun barrel and a target surface

Abstract

The present invention provides a device for rapidly measuring the angle between a gun barrel and a target surface. The device comprises a mounting plate and a gun barrel. The mounting plate is disposed on one side of the gun barrel, a measuring plate is mounted on the mounting plate, and a plurality of fastening bolts are provided between the measuring plate and the mounting plate. A connecting mechanism is mounted on one end of the gun barrel. The connecting mechanism comprises a connecting block and two U-shaped rods. The connecting block has an arcuate groove on its bottom surface. The two U-shaped rods are both disposed on the bottom surface of the gun barrel. The two top ends of each U-shaped rod extend through the connecting block and are fixed with screws. Each screw is sleeved with a connecting bolt. The arcuate groove on the connecting block cooperates with the two U-shaped rods to be mounted on the gun barrel and locked together by the connecting bolts. A laser emitting mechanism is mounted on the top surface of the connecting mechanism. The present invention can rapidly and accurately measure the angle between the gun barrel and the target surface. Furthermore, the overall structural design is simple, the manufacturing cost is low, and it is easy to promote.

Description

Technical Field

[0001] The present invention relates to the technical field related to protective engineering, and in particular to a device and method for quickly measuring the angle between a gun barrel and a target surface. Background Art

[0002] Penetration test is the most important way to study the anti-penetration protection capability of materials, structures and equipment. Early research results in my country believe that, under the same other conditions, the penetration depth of the projectile into concrete material is proportional to the cosine value (cosα) of the projectile's impact angle α. The impact angle α will significantly affect the penetration depth of the penetration test. Therefore, measuring the angle between the gun barrel and the target surface is very necessary to reduce test errors and accurately evaluate the anti-penetration protection capability, especially for large-caliber scaled projectile penetration tests. At present, due to the limitations of field test site conditions, the cost of adjusting the azimuth of the target or launch device is very high. It is very necessary to design a simple device suitable for field sites that can quickly measure the angle between the gun barrel and the target surface, adjust the azimuth of the auxiliary target or launch device, shorten the test preparation time, and reduce the test cost. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a device and method for quickly measuring the angle between a gun barrel and a target surface, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A device for quickly measuring the angle between a gun barrel and a target surface comprises a mounting plate and a gun barrel. The mounting plate is arranged on one side of the gun barrel, a measuring plate is mounted on the mounting plate, and a plurality of fastening bolts are evenly arranged between the measuring plate and the mounting plate and connected by the fastening bolts.

[0006] A connecting mechanism is installed on one end of the gun barrel, and the connecting mechanism includes a connecting block and two U-shaped rods. The bottom surface of the connecting block is provided with an arc-shaped groove, and the arc-shaped groove fits with the outer wall of the gun barrel. The two U-shaped rods are both arranged on the bottom surface of the gun barrel and match the arc-shaped bottom surface of the gun barrel. The two top ends of each U-shaped rod pass through the connecting block and are fixed with a screw. Each screw is threadedly sleeved with a connecting bolt. The arc-shaped groove on the connecting block matches the two U-shaped rods and is installed on the gun barrel and is locked and connected by the connecting bolt.

[0007] A laser emitting mechanism is installed on the top surface of the connecting mechanism, and the connecting mechanism and the laser emitting mechanism are used in conjunction with each other.

[0008] Furthermore, the measuring plate includes a frame, a pressure plate frame is fixedly provided in the frame, a core thin plate is provided in the pressure plate frame, and a coordinate paper and a coordinate system are drawn on the core thin plate.

[0009] Furthermore, the core thin plate is connected to the pressure plate frame via a plurality of fastening bolts on all four sides.

[0010] Furthermore, the laser emitting mechanism includes a circular mounting plate, which is arranged directly above the connecting block. Five mounting holes are opened on the circular mounting plate, and a laser pen is installed in each of the mounting holes. A connecting component is provided between the circular mounting plate and the connecting block.

[0011] Furthermore, each of the laser pens is connected to the annular mounting plate via mounting bolts.

[0012] Furthermore, the connecting assembly includes a snap-fit block, which is arranged below the annular mounting plate, and a connecting rod is fixed between the annular mounting plate and the snap-fit block. A snap-fit groove is provided on the top surface of the connecting block, and the snap-fit block is located in the snap-fit groove, and both sides of the connecting block are connected to the connecting block by a number of mating bolts.

[0013] The present invention also provides a method for quickly measuring the angle between a gun barrel and a target surface, comprising the following steps:

[0014] Step 1: The gun barrel is located in the two U-shaped rods and the arc-shaped groove. The two U-shaped rods fit the bottom surface of the gun barrel, and the arc-shaped groove fits the curved outer wall of the gun barrel. By turning the connecting bolts in sequence, the connecting mechanism is installed on the gun barrel.

[0015] Step 2: Place the locking block in the locking slot and tighten it with the matching bolts, so that the laser emission mechanism can be easily installed;

[0016] Step 3: Insert each laser pointer into the corresponding mounting hole and install it with the mounting bolts. This will facilitate the installation of the laser pointer.

[0017] The present invention provides a device and method for quickly measuring the angle between a gun barrel and a target surface. Compared with the prior art, it has the following advantages:

[0018] 1. The present invention not only facilitates the installation of the connecting mechanism on the gun barrel but also facilitates the disassembly operation through the design of the connecting mechanism;

[0019] 2. The present invention facilitates the detachable installation of the laser emitting mechanism on the connecting mechanism through the coordinated arrangement of the laser emitting mechanism and the connecting assembly, and is also simple to operate, which is beneficial for subsequent penetration tests.

[0020] In summary, through this invention patent, the angle between the gun barrel and the target surface can be measured quickly and accurately, which can be used to quickly check whether the spatial position between the target and the gun barrel meets the test requirements before the penetration test. It can also be used to assist on-site test personnel to adjust the orientation of the target or launch device, providing technical support for the anti-penetration performance test of materials, structures and equipment. At the same time, the overall structural design is simple and practical, easy to operate, and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A three-dimensional schematic diagram of the overall structure of the present invention is shown;

[0023] Figure 2 A three-dimensional connection diagram of the gun barrel, laser emitting mechanism and connecting mechanism of the present invention is shown;

[0024] Figure 3 A three-dimensional connection diagram of the laser emitting mechanism and the connecting mechanism of the present invention is shown;

[0025] Figure 4 A three-dimensional schematic diagram of the laser emission mechanism and the connection block of the present invention is shown;

[0026] Figure 5 A three-dimensional schematic diagram of the laser emitting mechanism of the present invention is shown;

[0027] Figure 6 A three-dimensional connection diagram of the U-shaped rod, the screw rod and the connecting bolt of the present invention is shown;

[0028] Figure 7 A three-dimensional schematic diagram of the measuring plate of the present invention is shown;

[0029] Figure 8 A schematic diagram showing the orientation of the laser pen mounting hole of the present invention is shown;

[0030] As shown in the figure: 1. Gun barrel; 2. Mounting plate; 3. Measuring plate; 31. Frame; 32. Pressure plate frame; 33. Core thin plate; 4. Laser emitting mechanism; 41. Mounting bolt; 42. Mounting hole; 43. Ring mounting plate; 44. Laser pen; 45. Clamping block; 5. Connecting mechanism; 51. Connecting bolt; 52. Connecting block; 53. Arc groove; 54. U-shaped rod; 6. Screw. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] In order to solve the technical problems in the background technology, a device for quickly measuring the angle between a gun barrel and a target surface is provided as follows:

[0034] Combine Figure 1-8 As shown, the present invention provides a device for quickly measuring the angle between a gun barrel and a target surface, comprising a mounting plate 2 and a gun barrel 1. The mounting plate 2 is arranged on one side of the gun barrel 1. A measuring plate 3 is mounted on the mounting plate 2. A plurality of fastening bolts are evenly arranged between the measuring plate 3 and the mounting plate 2 and connected by the fastening bolts.

[0035] A connecting mechanism 5 is installed on one end of the gun barrel 1. The connecting mechanism 5 includes a connecting block 52 and two U-shaped rods 54. The bottom surface of the connecting block 52 is provided with an arcuate groove 53, and the arcuate groove 53 fits with the outer wall of the gun barrel 1. The two U-shaped rods 54 are both arranged on the bottom surface of the gun barrel 1 and cooperate with the arcuate bottom surface of the gun barrel 1. The two top ends of each U-shaped rod 54 pass through the connecting block 52 and are fixed with a screw 6. Each screw 6 is threadedly sleeved with a connecting bolt 51. The arcuate groove 53 on the connecting block 52 cooperates with the two U-shaped rods 54 and is installed on the gun barrel 1 and is locked and connected by the connecting bolt 51.

[0036] The laser emitting mechanism 4 is installed on the top surface of the connecting mechanism 5 , and the connecting mechanism 5 and the laser emitting mechanism 4 are used in conjunction with each other.

[0037] The measuring plate 3 includes a frame 31, within which a pressure plate frame 32 is fixed. A core plate 33 is disposed within the pressure plate frame 32. Coordinate paper and a coordinate system are drawn on the core plate 33. The core plate 33 is connected to the pressure plate frame 32 via a plurality of fastening bolts at all four sides.

[0038] The laser emitting mechanism 4 includes a circular mounting plate 43, which is arranged just above the connecting block 52. Five mounting holes 42 are provided on the circular mounting plate 43. The axis of the mounting opening is perpendicular to the end face of the circular mounting plate 43. The 1# to 4# mounting holes 42 are distributed in a square. Assuming that the side length of the square is a, and the center of the 5# mounting hole 42 is cocircular with the 1# to 4# mounting holes 42, the radius of the circle is The 5# mounting hole 42 is located on the perpendicular midline of the 1# and 2# mounting holes 42 .

[0039] A laser pen 44 is installed in each of the mounting holes 42 , and a connecting assembly is provided between the annular mounting plate 43 and the connecting block 52 . Each of the laser pen 44 is connected to the annular mounting plate 43 via a mounting bolt 41 .

[0040] The present invention not only facilitates the installation of the connecting mechanism 5 on the gun barrel 1 through the design of the connecting mechanism 5, but also facilitates the disassembly operation.

[0041] Example 2

[0042] Combine Figure 1-8 As shown, based on the above embodiment, this embodiment further provides the following content:

[0043] The connecting assembly includes a snap-fit block 45, which is arranged below the annular mounting plate 43, and a connecting rod is fixed between the annular mounting plate 43 and the snap-fit block 45. A snap-fit groove is provided on the top surface of the connecting block 52, and the snap-fit block 45 is located in the snap-fit groove. Both sides of the connecting block 52 are connected to the connecting block 52 by a number of matching bolts.

[0044] The present invention facilitates the installation and disassembly of the laser emitting mechanism 4 and the connecting mechanism 5 by providing the connecting assembly, thereby facilitating the subsequent penetration test.

[0045] Example 3

[0046] Based on the above embodiment, this embodiment further provides the following content:

[0047] The present invention also provides a method for quickly measuring the angle between a gun barrel and a target surface, comprising the following steps:

[0048] Step 1: The gun barrel 1 is located within the two U-shaped rods 54 and the arc-shaped groove 53. The two U-shaped rods 54 fit in with the bottom surface of the gun barrel 1, and the arc-shaped groove 53 fits in with the arc-shaped outer wall of the gun barrel 1. The connecting mechanism 5 is installed on the gun barrel 1 by sequentially rotating the connecting bolts 51.

[0049] Step 2: Place the locking block 45 in the locking groove and tighten it with the matching bolts, so that the laser emitting mechanism 4 can be easily installed;

[0050] Step 3: Insert each laser pen 44 into the corresponding mounting hole 42 and install it using the mounting bolts 41 . This facilitates the installation of the laser pen 44 .

[0051] See also Figure 8 , further explanation;

[0052] When the target surface is perpendicular to the ground and the barrel is parallel to the ground, you only need to turn on the 1#, 2#, and 4# laser pointers at the same time.

[0053] Place the measuring plate 3 on the target surface, so that the target surface is parallel to the surface of the measuring plate 3. At this time, the light spots of the 1#, 2#, and 4# laser pens on the surface of the measuring plate 3 are distributed in a right triangle, and the distance between the 1# and 4# light spots is a.

[0054] Adjust the position of the measuring plate 3 on the target surface and read the distance between the 1# and 2# laser spots, which is recorded as L12.

[0055] The angle L12 between the 1# and 2# laser spots and the angle α between the gun barrel 1 and the target surface satisfy the geometric relationship L12×cosα=a, so α=arccos(a / L12).

[0056] When it is not possible to simultaneously meet the requirements of perpendicularity between the target surface and the ground and parallelism between the gun barrel and the ground, it is necessary to turn on the 1#, 2#, 3#, 4#, and 5# laser pointers at the same time.

[0057] Place the measuring plate 3 on the target surface, and the target surface is parallel to the surface of the measuring plate 3. At this time, the light spots of the 1#, 2#, 3#, 4#, and 5# laser pointers on the surface of the measuring plate are distributed on the same ellipse, and the length of the minor axis of the ellipse is

[0058] The coordinates of the five light spots are read out through the measuring plate. Based on the coordinates of the light spots, the equation of the ellipse where the five light spots are located is solved using MATLAB software. The major axis length Lab of the ellipse is solved based on the ellipse equation. The major axis length Lab of the ellipse satisfies the geometric relationship with the angle α between the gun barrel and the target surface. Through the above, the angle between the gun barrel and the target surface can be measured.

[0059] In summary, this invention patent can not only quickly and accurately measure the angle between the gun barrel and the target surface, and quickly check whether the spatial position between the target and the gun barrel meets the test requirements before the penetration test, but also assist on-site test personnel in adjusting the orientation of the target or launch device, providing technical support for the anti-penetration performance test of materials, structures and equipment. At the same time, the overall structural design is simple and practical, easy to operate, and low in cost.

[0060] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for quickly measuring the angle between a gun barrel and a target surface, comprising a mounting plate (2) and a gun barrel (1), characterized in that: The mounting plate (2) is arranged on one side of the gun barrel (1), a measuring plate (3) is mounted on the mounting plate (2), and a plurality of fastening bolts are evenly arranged between the measuring plate (3) and the mounting plate (2) and connected by the plurality of fastening bolts; A connecting mechanism (5) is installed on one end of the gun barrel (1), and the connecting mechanism (5) includes a connecting block (52) and two U-shaped rods (54). The bottom surface of the connecting block (52) is provided with an arc groove (53), and the arc groove (53) fits with the outer wall of the gun barrel (1). The two U-shaped rods (54) are both arranged on the bottom surface of the gun barrel (1) and matched with the arc bottom surface of the gun barrel (1). The two top ends of each U-shaped rod (54) pass through the connecting block (52) and are fixed with a screw rod (6). Each screw rod (6) is threadedly sleeved with a connecting bolt (51). The arc groove (53) on the connecting block (52) matches the two U-shaped rods (54) and is installed on the gun barrel (1) and is locked and connected by the connecting bolt (51). A laser emitting mechanism (4) is installed on the top surface of the connecting mechanism (5), and the connecting mechanism (5) and the laser emitting mechanism (4) are used in conjunction with each other; The laser emitting mechanism (4) comprises a circular mounting plate (43), the circular mounting plate (43) being arranged directly above a connecting block (52), the circular mounting plate (43) being provided with five mounting holes (42), each of the mounting holes (42) being provided with a laser pen (44), and a connecting assembly being provided between the circular mounting plate (43) and the connecting block (52).

2. The device for rapidly measuring the angle between a gun barrel and a target surface according to claim 1, characterized in that: The measuring plate (3) comprises a frame (31), a pressing plate frame (32) is fixedly arranged in the frame (31), and a core thin plate (33) is arranged in the pressing plate frame (32).

3. The device for rapidly measuring the angle between a gun barrel and a target surface according to claim 2, characterized in that: The core thin plate (33) is connected to the pressure plate frame (32) via a plurality of fastening bolts on all four sides.

4. The device for rapidly measuring the angle between a gun barrel and a target surface according to claim 1, characterized in that: Each of the laser pens (44) is connected to the annular mounting plate (43) via a mounting bolt (41).

5. The device for rapidly measuring the angle between a gun barrel and a target surface according to claim 1, characterized in that: The connecting assembly comprises a snap-fit block (45), the snap-fit block (45) being arranged below the annular mounting plate (43), and a connecting rod being fixedly arranged between the annular mounting plate (43) and the snap-fit block (45), a snap-fit groove being provided on the top surface of the connecting block (52), the snap-fit block (45) being located in the snap-fit groove, and both sides of the connecting block (52) being connected to the connecting block (52) by a plurality of matching bolts.

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