Rapid reversing device for vibration, impact and centrifugal tests

Abstract

The utility model provides a rapid reversing device for vibration, impact and centrifugation tests, and belongs to the field of military supplies tests. The device comprises a to-be-tested piece, a fixing base and a mounting plate, the fixing base is of a box-shaped structure with an upward opening, a first fixing hole is formed in the opening face of the fixing base, the mounting plate is provided with a top face, a bottom face, two first side faces parallel to each other and two second side faces parallel to each other, and the first side faces are perpendicular to the second side faces. The top surface is provided with a to-be-tested piece mounting hole, a to-be-tested piece is arranged on the to-be-tested piece mounting hole, a second fixing hole matched with the first fixing hole is formed between the top surface and the bottom surface, and a third fixing hole matched with the first fixing hole is formed between the two first side surfaces; and a fourth fixing hole matched with the first fixing hole is formed between the two second side surfaces. By adopting the quick reversing device for vibration, impact and centrifugation tests provided by the embodiment of the utility model, the problem of lower test efficiency in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of military product testing, and in particular to a rapid reversing device for vibration, shock and centrifugal testing. Background Technology

[0002] To ensure that military products can operate normally in extreme environments and meet the high reliability requirements of military applications, vibration, shock, and centrifugation tests are conducted under specific conditions. This is an important part of the research and development and production process of military products and is of vital importance to ensuring the performance and safety of weapons and equipment.

[0003] In the relevant testing processes, the tests are usually not unidirectional. Vibration tests require testing in the X, Y, and Z axes, while impact and centrifugal tests require testing in the ±X, ±Y, and ±Z axes. Current technology requires reversing the entire testing fixture during reversal, and it can only support testing in three axes. For testing in the other three axes, the product must be disassembled, reversed, and then tested in those directions.

[0004] Existing reversal methods are relatively complex to operate and usually suffer from limited operating space and long reversal time, resulting in low experimental efficiency. Utility Model Content

[0005] This utility model provides a rapid reversing device for vibration, shock, and centrifugal testing, which can solve the problem of low testing efficiency in the prior art. The technical solution is as follows:

[0006] A rapid reversing device for vibration, shock, and centrifugal testing includes a test piece, a fixed base, and a mounting plate.

[0007] The fixed base is an upward-opening box-shaped structure. At least one first fixing hole is provided on the opening surface of the fixed base. The mounting plate has a top surface, a bottom surface, two parallel first side surfaces and two parallel second side surfaces. The first side surfaces and the second side surfaces are perpendicular. A test component mounting hole is provided on the top surface. The test component is placed in the test component mounting hole. A second fixing hole matching the first fixing hole is provided between the top surface and the bottom surface. A third fixing hole matching the first fixing hole is provided between the two first side surfaces. A fourth fixing hole matching the first fixing hole is provided between the two second side surfaces.

[0008] Optionally, protrusions are provided on the first side and the second side, and the second fixing hole, the third fixing hole and the fourth fixing hole are all provided on the protrusions.

[0009] Optionally, the opening surface of the fixed base is provided with a groove that matches the protrusion, and the first fixing hole is disposed in the groove.

[0010] Optionally, there are two first fixing holes, which are arranged at intervals. One of the first fixing holes matches the second fixing hole, and the other first fixing hole matches the third fixing hole or the fourth fixing hole.

[0011] The first fixing hole is provided in three parts, which are arranged in a triangular pattern. Two of the first fixing holes are matched with the second fixing hole, and the other first fixing hole is matched with the third fixing hole or the fourth fixing hole.

[0012] Optionally, the test component mounting holes are provided in a plurality of manner, and the plurality of test component mounting holes are distributed in a rectangular array on the top surface.

[0013] Optionally, the bottom of the fixed base is provided with a base fixing hole.

[0014] Optionally, the base fixing holes are provided in a plurality of manner, and the plurality of base fixing holes are distributed in a rectangular array.

[0015] Optionally, the side of the fixed base is provided with an operating groove.

[0016] Optionally, a vibration damping groove is provided on the side of the fixed base adjacent to the operating groove.

[0017] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0018] This utility model provides a rapid reversing device for vibration, shock, and centrifugal testing. The test piece is fixed by mounting it in the test piece mounting holes. The first fixing hole is matched with the second, third, and fourth fixing holes using screws. During the matching installation with each hole, the mounting plate can be rotated 180° to perform tests in two directions, thus fixing the test piece to the base in six different orientations. This allows for testing the test piece in six axes. During the test, only the mounting screws need to be removed to fix the test piece in different directions. The operation is simple and convenient, effectively solving the problem of low testing efficiency in existing technologies. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the fixed base structure provided in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the mounting plate structure provided in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the first test orientation installation structure provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the second test orientation installation structure provided in this embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the installation structure at the third test position provided in this embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the fourth test orientation installation structure provided in this embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the fifth test orientation installation structure provided in this embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the sixth test orientation installation structure provided in this embodiment of the utility model.

[0028] In the figure: 1-Test piece; 2-Fixed base; 21-Groove; 22-Base fixing hole; 23-Operating groove; 24-Vibration damping groove; 3-Mounting plate; 31-Top surface; 311-Test piece mounting hole; 32-Bottom surface; 33-First side surface; 34-Second side surface; 35-Protrusion; 41-First fixing hole; 42-Second fixing hole; 43-Third fixing hole; 44-Fourth fixing hole. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the fixed base structure provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the mounting plate structure provided in an embodiment of the present utility model; Figure 3This is a schematic diagram of the first test orientation installation structure provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the second test orientation installation structure provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the installation structure at the third test position provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the fourth test orientation installation structure provided in this embodiment of the utility model;

[0031] Figure 7 This is a schematic diagram of the fifth test orientation installation structure provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the sixth test orientation installation structure provided in this embodiment of the utility model. Figures 1 to 8 The device shown is a rapid reversing device for vibration, shock and centrifugal testing, including a test piece 1, a fixed base 2 and a mounting plate 3. The fixed base 2 is a box-shaped structure with an upward opening. At least one first fixing hole 41 is provided on the opening surface of the fixed base 2. The mounting plate 3 has a top surface 31, a bottom surface 32, two parallel first side surfaces 33 and two parallel second side surfaces 34. The first side surfaces 33 and the second side surfaces 34 are perpendicular. A test piece mounting hole 311 is provided on the top surface 31. The test piece 1 is placed on the test piece mounting hole 311. A second fixing hole 42 matching the first fixing hole 41 is provided between the top surface 31 and the bottom surface 32. A third fixing hole 43 matching the first fixing hole 41 is provided between the two first side surfaces 33. A fourth fixing hole 44 matching the first fixing hole 41 is provided between the two second side surfaces 34.

[0032] Exemplary, in this embodiment of the present invention, the fixed base 2 has a square box structure, and the mounting plate 3 has a square plate structure. The test piece 1 is mounted on the top surface 31 of the mounting plate 3 through the test piece mounting hole 311. Figure 3 As shown, the mounting plate 3 is fixed by engaging the second fixing hole 42 with the first fixing hole 41, so that the top surface 31 faces upward. At this time, the test piece 1 is in the first posture and fixed on the fixed base 2; as shown Figure 4 As shown, after rotating the mounting plate 3 180°, the second fixing hole 42 still engages with the first fixing hole 41, so that the bottom surface 32 faces upward. At this time, the test piece 1 is in the second posture and fixed on the fixed base 2; as shown Figure 5 As shown, the third fixing hole 43 on the first side 33 is then engaged with the first fixing hole 41 for fixation, so that the first side 33 faces upward. At this time, the test piece 1 is in a third posture and fixed on the fixed base 2; as shown Figure 6 As shown, the mounting plate 3 is then rotated 180°, so that the third fixing hole 43 still mates with the first fixing hole 41, thus making the other first side 33 face upwards. At this time, the test piece 1 is in a fourth posture and fixed on the fixing base 2; as shown Figure 7As shown, the fourth fixing hole 44 on the second side 34 is then engaged with the first fixing hole 41 for fixation, so that the second side 34 faces upward. At this time, the test piece 1 is in the fifth posture and fixed on the fixed base 2; as shown Figure 8 As shown, the mounting plate 3 is then rotated 180°, so that the fourth fixing hole 44 still engages with the first fixing hole 41, thus making the other second side 34 face upwards. At this point, the test piece 1 is fixed to the fixed base 2 in the sixth posture. This allows the test piece 1 to be fixed to the fixed base 2 in six different postures, corresponding to six axial directions. The fixed base 2 is then fixed to the testing equipment to meet the requirements of impact and centrifugal tests. Compared to traditional technologies that require disassembling the product and reversing its installation to complete tests in six directions, the device in this embodiment only requires removing and installing the fixing screws between the mounting plate 3 and the fixed base 2 to allow the test piece 1 to be tested in six directions, thereby improving testing efficiency.

[0033] Optionally, a protrusion 35 is provided on the first side 33 and the second side 34, and the second fixing hole 42, the third fixing hole 43 and the fourth fixing hole 44 are all provided on the protrusion 35.

[0034] For example, in this embodiment of the present invention, protrusions 35 are provided on all four sides of the mounting plate 3. The size of the mounting plate 3 is set to be slightly smaller than the area of ​​the opening surface of the fixed base 2. By providing protrusions 35 on the first side 33 and the second side 34, when the third fixing hole 43 and the fourth fixing hole 44 are respectively installed and engaged with the first fixing hole 41, it is only necessary to make the protrusions 35 engage with the opening surface of the fixed base 2, so that a part of the mounting plate 3 is located inside the fixed base 2, thereby reducing the overall volume of the device and improving the ease of operation of the device.

[0035] Optionally, the opening surface of the fixed base 2 is provided with a groove 21 that matches the protrusion 35, and the first fixing hole 41 is provided in the groove 21.

[0036] For example, in this embodiment of the present invention, grooves 21 are provided on all four sides of the opening surface of the fixed base 2. By providing grooves 21 on the opening surface of the fixed base 2, when the first fixing hole 41 is engaged with the second fixing hole 42, the third fixing hole 43 and the fourth fixing hole 44 respectively, the protrusion 35 also engages with the grooves 21. The grooves 21 play a certain limiting role in the horizontal displacement of the protrusion 35, thereby strengthening the engagement between the mounting plate 3 and the fixed base 2, and thus improving the stability of the device.

[0037] Optionally, there are two first fixing holes 41, which are arranged at intervals. One first fixing hole 41 matches the second fixing hole 42, and the other first fixing hole 41 matches the third fixing hole 43 or the fourth fixing hole 44.

[0038] For example, in this embodiment of the present invention, by providing two first fixing holes 41, when the top surface 31 or the bottom surface 32 is facing upwards, one of the first fixing holes 41 is matched with the second fixing hole 42, and when the first side surface 33 or the second side surface 34 is facing upwards, the other first fixing hole 41 is matched with the third fixing hole 43 or the fourth fixing hole 44. This can reduce the intensity of use of each fixing hole. Since the screws need to be disassembled multiple times during multiple multi-directional tests, each fixing hole may experience fatigue. By setting the first fixing hole 41 as two different holes, the intensity of use of each hole can be distributed, thereby extending the service life of the device.

[0039] Optionally, three first fixing holes 41 are provided, and the three first fixing holes 41 are arranged in a triangle, wherein two of the first fixing holes 41 are matched with the second fixing hole 42, and the other first fixing hole 41 is matched with the third fixing hole 43 or the fourth fixing hole 44.

[0040] Exemplary, in embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the second fixing hole can be made in a position other than the exact center of the mounting plate 3. Figure 3 As shown, when the top surface 31 is facing upwards, the second fixing hole 42 is located slightly to the right; when the bottom surface 32 is facing upwards, the second fixing hole 42 is located slightly to the left. By setting three first fixing holes 41, when the top surface 31 is facing upwards, the first fixing hole 41 matches the second fixing hole 42; when the bottom surface 32 is facing upwards, the second fixing hole 41 matches the second fixing hole 42; and when the first side surface 33 or the second side surface 34 is facing upwards, the third fixing hole 41 matches the third fixing hole 43 or the fourth fixing hole 44. This reduces the stress on each fixing hole. Since the screws need to be disassembled multiple times during multiple multi-directional tests, each fixing hole may experience fatigue. Setting the first fixing holes 41 as three different holes distributes the stress on each hole, thereby extending the service life of the device.

[0041] Optionally, multiple mounting holes 311 are provided for the test piece, and the multiple mounting holes 311 are distributed in a rectangular array on the top surface 31.

[0042] By way of example, in this embodiment of the present invention, by providing a plurality of test component mounting holes 311 on the mounting plate 3, multiple test components 1 can be tested simultaneously, thereby further improving the testing efficiency of the device. Distributing the plurality of test component mounting holes 311 in a rectangular array on the top surface 31 facilitates the installation operation of the test component 1, further improving the ease of operation of the device.

[0043] Optionally, the bottom of the fixed base 2 is provided with a base fixing hole 22.

[0044] For example, in this embodiment of the present invention, by providing a base fixing hole 22 at the bottom of the fixed base 2, the fixed base 2 can be installed on the test equipment by means of screw installation. This connection method is simple to operate and easy to disassemble, thereby further improving the ease of operation of the device.

[0045] Optionally, the base fixing holes 22 are provided in multiple ways, and the multiple base fixing holes 22 are distributed in a rectangular array.

[0046] For example, in this embodiment of the present invention, by providing multiple base fixing holes 22, the fixing base 2 can be more stably installed on the test equipment, preventing the fixing base 2 from falling off the test equipment during the test, thereby further improving the stability of the device.

[0047] Optionally, the side of the fixed base 2 is provided with an operation groove 23.

[0048] For example, in this embodiment of the present invention, if the operating groove 23 is not provided, the mounting plate 3 can only be fixed to the mounting base 2 after the fixed base 2 is installed on the test equipment. However, by providing the operating groove 23 on the side of the fixed base 2, the mounting plate 3 can be installed and fixed to the fixed base 2 first, and then the device can be fixed to the test equipment. The screws in the fixing holes 22 of the base can be installed and removed through the operating groove 23 on the side, thereby further improving the ease of operation of the device.

[0049] Optionally, a vibration damping groove 24 is provided on the side of the fixed base 2 adjacent to the operating groove 23.

[0050] For example, in this embodiment of the present invention, by opening a vibration damping groove 24 on the side adjacent to the operating groove 23, on the one hand, it is convenient to operate the screw in the base fixing hole 22 from different angles; on the other hand, by opening an additional opening on the side of the fixing base 2, resonance can be reduced, thereby making the test results more accurate.

[0051] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 rapid reversing device for vibration, shock, and centrifugal testing, comprising a test piece (1), characterized in that, include: Fix the base (2) and the mounting plate (3), The fixed base (2) is a box-shaped structure with an upward opening. At least one first fixing hole (41) is provided on the opening surface of the fixed base (2). The mounting plate (3) has a top surface (31), a bottom surface (32), two parallel first side surfaces (33) and two parallel second side surfaces (34). The first side surfaces (33) and the second side surfaces (34) are perpendicular. A test component mounting hole (311) is provided on the top surface (31). The test component (1) is placed on the test component mounting hole (311). A second fixing hole (42) matching the first fixing hole (41) is provided between the top surface (31) and the bottom surface (32). A third fixing hole (43) matching the first fixing hole (41) is provided between the two first side surfaces (33). A fourth fixing hole (44) matching the first fixing hole (41) is provided between the two second side surfaces (34).

2. The rapid reversing device for vibration, shock, and centrifugal testing according to claim 1, characterized in that, The first side (33) and the second side (34) are provided with protrusions (35), and the second fixing hole (42), the third fixing hole (43) and the fourth fixing hole (44) are all provided on the protrusions (35).

3. The rapid reversing device for vibration, shock, and centrifugal testing according to claim 2, characterized in that, The opening surface of the fixed base (2) is provided with a groove (21) that matches the protrusion (35), and the first fixing hole (41) is provided in the groove (21).

4. The rapid reversing device for vibration, shock, and centrifugal testing according to claim 1, characterized in that, There are two first fixing holes (41), which are arranged at intervals. One of the first fixing holes (41) matches the second fixing hole (42), and the other first fixing hole (41) matches the third fixing hole (43) or the fourth fixing hole (44).

5. A rapid reversing device for vibration, shock, and centrifugal testing according to claim 1, characterized in that, The first fixing hole (41) is provided in three parts, and the three first fixing holes (41) are arranged in a triangle. Two of the first fixing holes (41) are matched with the second fixing hole (42), and the other first fixing hole (41) is matched with the third fixing hole (43) or the fourth fixing hole (44).

6. The rapid reversing device for vibration, shock, and centrifugal testing according to claim 1, characterized in that, The test component mounting holes (311) are provided in a plurality of manner, and the plurality of test component mounting holes (311) are distributed in a rectangular array on the top surface (31).

7. A rapid reversing device for vibration, shock, and centrifugal testing according to claim 1, characterized in that, The bottom of the fixed base (2) is provided with a base fixing hole (22).

8. A rapid reversing device for vibration, shock, and centrifugal testing according to claim 7, characterized in that, The base fixing holes (22) are provided in a plurality of manner, and the plurality of base fixing holes (22) are distributed in a rectangular array.

9. A rapid reversing device for vibration, shock, and centrifugal testing according to claim 1, characterized in that, The fixed base (2) has an operation groove (23) on its side.

10. A rapid reversing device for vibration, shock, and centrifugal testing according to claim 9, characterized in that, A vibration damping groove (24) is provided on the side of the fixed base (2) adjacent to the operating groove (23).

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