Impact force testing device

Abstract

The utility model discloses an impact force testing device which comprises a steel wire rope (1), a guide sleeve (2), a holding frame (3), a base frame (6), a simulation bullet head (8), a simulation bullet tip (14), a pressure sensor (11) and a product to be detected, the product to be detected is a film cover (15), the holding frame (3) is fixedly installed on the base frame (6), and the guide sleeve (2) penetrates through the holding frame (3); the simulated bullet head (8) is arranged in the guide sleeve (2), the upper end of the simulated bullet head (8) is hoisted by the steel wire rope (1), the bottom of the simulated bullet head (8) is connected with the simulated bullet tip (14), the pressure sensor (11) is arranged between the simulated bullet head (8) and the simulated bullet tip (14), and the film cover (15) is fixed on the base frame (6) and located below the simulated bullet tip (14); the simulated bullet head (8) and the simulated bullet tip (14) are released to act on the film cover (15), and the impact force is measured through the pressure sensor (11). The impact force can be applied to the product to be inspected, the design principle is reliable, and the structure is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of test tooling and relates to an impact force test device. Background Art

[0002] There is a type of film cover product. During inspection, the inner surface of the film cover is placed upward on an impact force testing device. The tip of the simulated bullet is at a certain distance from the inner surface of the film cover. The simulated bullet is released and the simulated bullet freely falls on the film cover. When the film cover breaks, it cracks along the weakening groove and the impact force is not greater than a certain value. The existing equipment cannot be used to meet the requirements. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] The utility model aims to provide an impact force testing device which meets the requirement of loading impact force on products for testing and has the characteristics of simple structure, convenient operation and stable operation.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the utility model provides an impact force testing device including a wire rope 1, a guide sleeve 2, a frame 3, a base frame 6, a simulated bullet 8, a simulated bullet tip 14, a pressure sensor 11 and a product to be inspected, wherein the product to be inspected is a film cover 15, the frame 3 is fixedly mounted on the base frame 6, and the guide sleeve 2 passes through the frame 3; the simulated bullet 8 is arranged in the guide sleeve 2, the upper end of which is suspended by the wire rope 1, and the bottom is connected to the simulated bullet tip 14, a pressure sensor 11 is arranged between the simulated bullet 8 and the simulated bullet tip 14, and the film cover 15 is fixed on the base frame 6 and is located below the simulated bullet tip 14; the simulated bullet 8 and the simulated bullet tip 14 are released to act on the film cover 15, and the impact force is measured by the pressure sensor 11.

[0007] The base frame 6 has four base plates forming a frame with a cross-section in the shape of a cross, and the holding frame 3 is fixed on the top of the base frame 6 .

[0008] The holding frame 3 includes a cylinder located in the center and a fixing plate formed around the middle of the cylinder. The holding frame 3 is fixed to the top end surface of the base frame 6 through the fixing plate.

[0009] Through holes 18 are provided on both sides of the fixing plate of the holding frame 3 , which match with the through holes 20 on the base frame 6 , and are connected and fixed by 12 screw rods 4 and 12 nuts 5 .

[0010] A positioning groove is provided in the middle of the outer wall of the guide sleeve 2, and the positioning groove is blocked on the cylinder of the holding frame 3. The inner diameter of the guide sleeve 2 is consistent with the outer diameter of the simulated warhead 8.

[0011] The base frame 6 is provided with four first threaded holes 19 around it, and a fine adjustment bolt 7 is arranged in each first threaded hole 19 to radially adjust the outer wall of the lower end of the guide sleeve 2 in four directions to ensure that the center of the simulated bullet tip 14 is aligned with the center of the film cover 15.

[0012] The top surface of the simulated bullet 8 is provided with a second threaded hole 21, the inner thread of the second threaded hole 21 is connected to the installation ring 17, the ring 17 is connected to the wire rope 1, the simulated bullet 8 and the simulated bullet tip 14 are lifted by the wire rope 1 and positioned at a set distance from the inner surface of the film cover 15, and then the simulated bullet 8 is released.

[0013] The upper connecting plate 9 is provided with a first countersunk hole 24, and the bolt 10 passes through the first countersunk hole 24 to connect to the bottom of the simulated bullet 8; the upper connecting plate 9 is also provided with a second countersunk hole 25, and the screw 13 passes through the second countersunk hole 25 to connect to the top surface of the pressure sensor 11.

[0014] A groove is provided at the center of the top surface of the lower connecting plate 12, and the pressure sensor 11 is arranged in the groove. A third countersunk hole 26 is provided at the bottom of the groove, and the screw 13 passes through the third countersunk hole 26 to connect the bottom surface of the pressure sensor 11.

[0015] A connecting column is arranged at the bottom of the lower connecting plate 12, and the connecting column is provided with an external thread 27. A column groove is arranged at the top of the simulated bullet tip 14, and an internal thread 23 is arranged in the column groove. The external thread 27 cooperates with the internal thread 23 to realize the connection between the lower connecting plate 12 and the simulated bullet tip 14, so that the pressure sensor 11, the lower connecting plate 12, and the simulated bullet tip 14 are connected as a whole.

[0016] (III) Beneficial effects

[0017] The impact force testing device provided by the above technical solution can apply impact force to the product to be tested. It has a reliable design principle and a simple structure. It solves the problem of loading impact force on the product for testing and has the characteristics of simple structure, easy operation and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 This is a schematic diagram of the guide sleeve structure in the utility model;

[0021] Figure 4 This is a schematic diagram of the frame structure in the utility model;

[0022] Figure 5 for Figure 4 A top view of

[0023] Figure 6 It is a schematic diagram of the base frame structure in the utility model;

[0024] Figure 7 for Figure 6 A top view of

[0025] Figure 8 This is a schematic diagram of the structure of the simulated bullet impact body in the utility model;

[0026] Fig. 9 This is a schematic diagram of the structure of the simulated warhead in the utility model;

[0027] Fig.10 This is a schematic diagram of the simulated bullet tip structure in the utility model;

[0028] Fig.11 This is a schematic diagram of the structure of the upper connecting plate in the utility model;

[0029] Fig.12 for Fig.11 A top view of

[0030] Fig.13 This is a schematic diagram of the structure of the lower connecting plate in the utility model;

[0031] Fig.14 for Fig.13 Top view of the . DETAILED DESCRIPTION

[0032] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0033] Reference Figures 1 to 14 As shown, the impact force testing device of this embodiment includes a steel wire rope 1, a guide sleeve 2, a frame 3, a base frame 6, a simulated bullet 8, a simulated bullet tip 14, a pressure sensor 11 and a product to be tested, wherein the product to be tested is a film cover 15, the frame 3 is fixedly mounted on the base frame 6, and the guide sleeve 2 passes through the frame 3; the simulated bullet 8 is arranged in the guide sleeve 2, the upper end of which is suspended by the steel wire rope 1, and the bottom is connected to the simulated bullet tip 14, a pressure sensor 11 is arranged between the simulated bullet 8 and the simulated bullet tip 14, and the film cover 15 is fixed on the base frame 6 and is located below the simulated bullet tip 14; the simulated bullet 8 and the simulated bullet tip 14 are released to act on the film cover 15, and the impact force is measured by the pressure sensor 11.

[0034] The base frame 6 has four base plates forming a frame with a cross-section in the shape of a cross, and the holding frame 3 is fixed on the top of the base frame 6 .

[0035] The holding frame 3 includes a cylinder located in the center and a fixing plate formed around the middle of the cylinder. The holding frame 3 is fixed to the top end surface of the base frame 6 through the fixing plate.

[0036] Through holes 18 are provided on both sides of the fixing plate of the holding frame 3 , which match with the through holes 20 on the base frame 6 , and are connected and fixed by 12 screw rods 4 and 12 nuts 5 .

[0037] A positioning groove is provided in the middle of the outer wall of the guide sleeve 2, and the positioning groove is blocked on the cylinder of the holding frame 3. The inner diameter of the guide sleeve 2 is consistent with the outer diameter of the simulated warhead 8.

[0038] The base frame 6 is provided with four first threaded holes 19 around it, and a fine adjustment bolt 7 is arranged in each first threaded hole 19 to radially adjust the outer wall of the lower end of the guide sleeve 2 in four directions to ensure that the center of the simulated bullet tip 14 is aligned with the center of the film cover 15.

[0039] The top surface of the simulated bullet 8 is provided with a second threaded hole 21, the inner thread of the second threaded hole 21 is connected to the installation ring 17, the ring 17 is connected to the wire rope 1, the simulated bullet 8 and the simulated bullet tip 14 are lifted by the wire rope 1 and positioned at a set distance from the inner surface of the film cover 15, and then the simulated bullet 8 is released.

[0040] The upper connecting plate 9 is provided with a first countersunk hole 24, and the bolt 10 passes through the first countersunk hole 24 to connect to the bottom of the simulated bullet 8; the upper connecting plate 9 is also provided with a second countersunk hole 25, and the screw 13 passes through the second countersunk hole 25 to connect to the top surface of the pressure sensor 11.

[0041] A groove is provided at the center of the top surface of the lower connecting plate 12, and the pressure sensor 11 is arranged in the groove. A third countersunk hole 26 is provided at the bottom of the groove, and the screw 13 passes through the third countersunk hole 26 to connect the bottom surface of the pressure sensor 11.

[0042] A connecting column is arranged at the bottom of the lower connecting plate 12, and the connecting column is provided with an external thread 27. A column groove is arranged at the top of the simulated bullet tip 14, and an internal thread 23 is arranged in the column groove. The external thread 27 cooperates with the internal thread 23 to realize the connection between the lower connecting plate 12 and the simulated bullet tip 14, so that the pressure sensor 11, the lower connecting plate 12, and the simulated bullet tip 14 are connected as a whole.

[0043] The impact force testing device of this embodiment meets the requirements of loading impact force on products for testing, and is easy to operate, accurate in positioning, and fast in speed.

[0044] The working process of the impact force test device of this embodiment is as follows:

[0045] 1) Fix the film cover 15 on the impact force testing device;

[0046] 2) hoisting the simulated warhead 8 by the steel wire rope 1 to a set distance from the inner surface of the film cover 15;

[0047] 3) releasing the simulated bullet 8, which acts on the film cover 15 by free fall and breaks through the film cover 15;

[0048] 4) reading the impact force through the pressure sensor 11;

[0049] 5) Take out the product.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An impact test device, characterized in that, it includes: a steel wire rope (1), a guide sleeve (2), a holding frame (3), a base frame (6), a simulated warhead (8), a simulated bullet tip (14), a pressure sensor (11) and a product to be inspected. The product to be inspected is a film cover (15). The holding frame (3) is fixedly installed on the base frame (6), and the guide sleeve (2) passes through the holding frame (3); the simulated warhead (8) is arranged in the guide sleeve (2), the upper end is suspended by the steel wire rope (1), and the bottom is connected to the simulated bullet tip (14). A pressure sensor (11) is arranged between the simulated warhead (8) and the simulated bullet tip (14). The film cover (15) is fixed on the base frame (6) and is located below the simulated bullet tip (14); the simulated warhead (8) and the simulated bullet tip (14) are released and act on the film cover (15), and the impact force is measured by the pressure sensor (11).

2. The impact test device according to claim 1, characterized in that, the base frame (6) has four base plates enclosing a frame with a cross-sectional shape of a well character, and the holding frame (3) is fixed on the top of the base frame (6).

3. The impact test device according to claim 2, characterized in that, the holding frame (3) includes a cylinder in the center and fixing plates formed around the middle of the cylinder. The holding frame (3) is fixed on the top end face of the base frame (6) through the fixing plates.

4. The impact test device according to claim 3, characterized in that, a positioning groove is provided in the middle of the outer wall of the guide sleeve (2), and the positioning groove is clamped on the cylinder of the holding frame (3).

5. The impact test device according to claim 4, characterized in that, the inner diameter of the guide sleeve (2) is the same as the outer diameter of the simulated warhead (8).

6. The impact test device according to claim 5, characterized in that, four first threaded holes (19) are provided around the base frame (6), and a fine adjustment bolt (7) is arranged in each first threaded hole (19) to perform radial adjustment on the lower end outer wall of the guide sleeve (2) in four directions to ensure that the center of the simulated bullet tip (14) is aligned with the center of the film cover (15).

7. The impact test device according to claim 6, characterized in that, a second threaded hole (21) is provided on the top surface of the simulated warhead (8), a lifting ring (17) is threadedly connected and installed in the second threaded hole (21), the lifting ring (17) is connected to the steel wire rope (1), and the simulated warhead (8) and the simulated bullet tip (14) are lifted by the steel wire rope (1) to a set distance from the inner surface of the film cover (15).

8. The impact test device according to claim 7, characterized in that, it further includes: an upper connecting plate (9) provided with a first countersunk hole (24), and a bolt (10) passes through the first countersunk hole (24) to connect the bottom of the simulated warhead (8); a second countersunk hole (25) is also provided on the upper connecting plate (9), and a pressure sensor (11) is connected to the top surface through a screw (13) passing through the second countersunk hole (25).

9. The impact test device according to claim 8, characterized in that, it further includes: a lower connecting plate (12) with a groove provided at the center of the top surface, and the pressure sensor (11) is arranged in the groove; A third counterbore hole (26) is formed at the bottom of the groove, and the bottom surface of the pressure sensor (11) is connected by a screw (13) passing through the third counterbore hole (26).

10. The impact force test device according to claim 9, characterized in that, a connecting column is arranged at the bottom of the lower connecting plate (12), the connecting column is provided with an external thread (27), a column groove is formed at the top of the simulated bullet tip (14), an internal thread (23) is formed in the column groove, and the external thread (27) is matched with the internal thread (23) to realize the connection between the lower connecting plate (12) and the simulated bullet tip (14).

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