Impact test bench

Abstract

The utility model relates to the technical field of impact tests, and particularly discloses an impact test bench, in which a base is provided with a sliding table, and the two ends of the base along the length direction are respectively provided with an end limiting part; the fixing frame is used for fixing a to-be-tested product and can be placed between the two end limiting parts on the sliding table; the fixing frame is provided with a pressure-bearing part; the crimping assembly comprises a crimping part rotationally arranged on the base, and the crimping part is configured to be located on the upper side of the pressure-bearing part to crimp the pressure-bearing part or located beside the pressure-bearing part in the rotating process; a locking piece in the locking assembly is arranged to be capable of moving to the position between the crimping piece and the base when the crimping part crimps the pressure bearing part so as to limit rotation of the crimping piece or move out of the position between the crimping piece and the base. The above settings improve the test efficiency and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of impact test, in particular to an impact test bench. Background Art

[0002] The horizontal waveform impact test bench is a computer closed-loop control system that can achieve large pulse widths and arbitrary impact waveforms, and can simulate the impact damage that products may receive during actual use in the laboratory. The horizontal waveform impact test bench generates a forward acceleration through the combined force of the pneumatic-servo braking components to achieve precise control of the impact waveform, and can fully simulate the collision situation of the test item in the real scenario.

[0003] In horizontal impact testing, the traditional fixing method is to completely lock the test item to the trolley through multiple screws, and multiple screws need to be unscrewed during disassembly. During the test, if an accident such as a fire occurs to the test item, the test item cannot be removed in time, and the fire spreading to the test bench will cause equipment damage.

[0004] Therefore, it is urgent to study an impact test bench to improve the disassembly efficiency of the test item and reduce the probability of damage to the impact test bench. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an impact test bench to solve the problem that the test item cannot be removed in time in the prior art, resulting in equipment damage.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] An impact test bench, comprising:

[0008] A base having a sliding table, and each end of the base in the length direction has an end limiting portion;

[0009] A fixing frame for fixing the product to be tested and capable of being placed between the two end limiting portions on the sliding table; the fixing frame is provided with a bearing portion;

[0010] A crimping assembly, the crimping assembly includes a crimping member, the crimping member is rotatably arranged on the base, and the crimping member is configured such that during rotation, the crimping portion of the crimping member can be located above the bearing portion to crimp the bearing portion or can be located beside the bearing portion;

[0011] A locking assembly, the locking assembly includes a locking member, and the locking member is arranged to be able to move between the crimping member and the base when the crimping portion crimps the bearing portion to limit the rotation of the crimping member, or to move out from between the crimping member and the base.

[0012] As an alternative technical solution of an impact test bench, the crimping member includes a crimping rod. The upper end of the crimping rod protrudes in a direction perpendicular to the extension direction of the crimping rod to form a crimping portion. The lower end of the crimping rod protrudes in a direction perpendicular to the extension direction of the crimping rod to form an anti-rotation portion. When the crimping portion crimps the pressure-bearing portion, the locking member can move between the anti-rotation portion and the base.

[0013] As an alternative technical solution of an impact test bench, a crimping slope is provided at the bottom of the crimping portion. The crimping slope inclines upward from bottom to top in a direction away from the crimping rod. Two parallel fixing rods are provided on both sides of the fixing frame in the width direction. The fixing rods have pressure-bearing slopes to form pressure-bearing portions. The pressure-bearing slopes incline outward from top to bottom. The crimping rod is hinged to the base through a hinge shaft, and the hinge shaft is located outside the crimping slope.

[0014] As an alternative technical solution of an impact test bench, the crimping assembly further includes an elastic member. The elastic member is provided between the crimping member and the base and is used to apply an elastic force to the crimping member so that the crimping portion stops on the upper side of the pressure-bearing portion.

[0015] As an alternative technical solution of an impact test bench, a guiding slope is provided at the top of the crimping portion. The guiding slope inclines downward from top to bottom in a direction away from the crimping rod.

[0016] As an alternative technical solution of an impact test bench, at least one pressure-bearing portion is provided on each side of the fixing frame in the width direction; at least two crimping assemblies are provided and are arranged in one-to-one correspondence with the pressure-bearing portions, and at least two locking assemblies are provided and are arranged in one-to-one correspondence with the crimping assemblies.

[0017] As an alternative technical solution of an impact test bench, the locking assembly includes a locking driving member. The locking driving member is provided on the base, and the locking member is provided at the output end of the locking driving member. The locking driving member is used to drive the locking member to extend into or move out from between the crimping member and the base.

[0018] As an alternative technical solution of an impact test bench, the locking driving member is a telescopic cylinder or an electric push rod. The output end of the locking driving member drives the locking member to extend into or move out from between the crimping member and the base in the width direction. The locking assembly further includes a floating joint, and the output end of the locking driving member and the locking member are connected through the floating joint.

[0019] As an alternative technical solution of an impact test bench, the base includes a bottom bracket and two limiting plates. A sliding table is formed at the top of the bottom bracket. The two limiting plates are arranged on the bottom bracket at intervals along the length direction and their positions are adjustable. Two end limiting parts are formed by the two opposite faces of the two limiting plates.

[0020] As an alternative technical solution of an impact test bench, the fixing frame includes fixing rods extending along the length direction and arranged at intervals along the width direction, and at least four connecting rods extending along the width direction and arranged at intervals along the length direction. Two ends of each connecting rod are respectively connected to the fixing rods on the corresponding side. The connecting rod is provided with a mounting hole, and the mounting hole is used to cooperate with mounting screws to connect the product to be tested.

[0021] The beneficial effects of the present utility model are as follows:

[0022] The present utility model provides an impact test bench, which includes a base and a fixing frame. The fixing frame is used to fix the product to be tested and can be placed between two end limiting parts on the sliding table. The pressing part in the pressing assembly is rotatably arranged on the base and can press the bearing part of the fixing frame through the pressing part. At this time, the locking part in the locking assembly can move between the pressing part and the base to limit the rotation of the pressing part, so as to prevent the pressing part from moving to the side of the bearing part and avoid the product to be tested from flipping during the test; when the product to be tested catches fire during the test, only need to move the locking part out from between the pressing part and the base, and then rotate the pressing part so that the pressing part is outside the bearing part, then the fixing frame and the product to be tested can be taken out together, realizing the rapid disassembly of the product to be tested, improving the test efficiency and the safety of the impact test bench. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the impact test bench in the embodiment of the present utility model;

[0024] Figure 2 is Figure 1 an enlarged view of part A in

[0025] Figure 3 is a schematic cross-sectional view of the impact test bench in the embodiment of the present utility model;

[0026] Figure 4 is a partial cross-sectional view of the impact test bench in the embodiment of the present utility model;

[0027] Figure 5 is a schematic structural diagram of the fixing frame in the embodiment of the present utility model.

[0028] In the figure:

[0029] 1000. Product to be tested;

[0030] 100. Base; 110. Bottom bracket; 111. Sliding table; 120. Limiting plate; 121. Limiting horizontal plate; 122. Limiting vertical plate; 1221. End limiting part; 123. Reinforcing rib; 130. Mounting seat;

[0031] 200. Fixed frame; 210. Fixed rod; 211. Bearing part; 220. Connecting rod; 221. Mounting hole;

[0032] 300. Crimping assembly; 310. Crimping member; 311. Crimping rod; 312. Crimping part; 3121. Crimping inclined surface; 3122. Introducing inclined surface; 313. Anti-rotation part; 320. Elastic member; 330. Hinge shaft;

[0033] 400. Locking assembly; 410. Locking member; 420. Locking driving member; 430. Floating joint. Detailed implementation manners

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] As Figures 1 to 5 shown, this embodiment provides an impact test bench to improve the disassembly efficiency of the product 1000 to be tested and avoid the spread of fire to the impact test bench when the product 1000 to be tested catches fire, so as to cause greater losses. The impact test bench includes a base 100, a fixing frame 200, a crimping assembly 300, and a locking assembly 400. Among them, the base 100 has a sliding table 111, and both ends of the base 100 in the length direction are each provided with an end limiting portion 1221; the fixing frame 200 is used to fix the product 1000 to be tested and can be placed between the two end limiting portions 1221 on the sliding table 111; at least one bearing portion 211 is provided on each of the two sides of the fixing frame 200 in the width direction; at least two crimping assemblies 300 are provided and are arranged in one-to-one correspondence with the bearing portions 211. The crimping assembly 300 includes a crimping member 310. The crimping member 310 is rotatably arranged on the base 100, and the crimping portion 312 of the crimping member 310 is configured to be able to be located above the bearing portion 211 to crimp the bearing portion 211 or be able to be located beside the bearing portion 211 during the rotation process; at least two locking assemblies 400 are provided and are arranged in one-to-one correspondence with the crimping assemblies 300. The locking assembly 400 includes a locking member 410. The locking member 410 is arranged to be able to move between the crimping member 310 and the base 100 when the crimping portion 312 crimps the bearing portion 211 to limit the rotation of the crimping member 310, or move out from between the crimping member 310 and the base 100. Among them, when the crimping portion 312 of the crimping member 310 crimps the bearing portion 211, it can prevent the product 1000 to be tested from flipping during the impact test and improve the test safety.

[0039] With the above - mentioned structure, when a fire occurs during the test of the product 1000 to be tested, it is only necessary to remove the locking member 410 from between the crimping member 310 and the base 100, and then rotate the crimping member 310 so that the crimping portion 312 is located outside the bearing portion 211, then the fixing frame 200 can be taken out together with the product 1000 to be tested, realizing the quick disassembly of the product 1000 to be tested, and improving the test efficiency and safety.

[0040] In some embodiments, the crimping member 310 includes a crimping rod 311. The upper end of the crimping rod 311 protrudes along a direction perpendicular to the extension direction of the crimping rod 311 to form a crimping portion 312, and the lower end of the crimping rod 311 protrudes along a direction perpendicular to the extension direction of the crimping rod 311 to form an anti - rotation portion 313. When the crimping portion 312 crimps the bearing portion 211, the locking member 410 can move between the anti - rotation portion 313 and the base 100. This kind of setting makes the crimping member 310 in a U - shape with the opening facing the product 1000 to be tested. During use, the crimping portion 312 crimps the bearing portion 211. When the product 1000 to be tested has a tendency to tip over away from the base 100 under impact, the bearing portion 211 abuts against the crimping portion 312 upward. The crimping portion 312 transmits the force to the anti - rotation portion 313 through the crimping rod 311, and then to the locking member 410, and finally to the base 100. Since the base 100 is heavier and will not tip over, the product 1000 to be tested is restricted to prevent it from tipping over away from the base 100. Among them, during the impact test, the base 1000 moves along the length direction and drives the fixing frame 200 and the product 1000 to be tested to move simultaneously.

[0041] There are multiple crimping assemblies 300 and locking assemblies 400. In this embodiment, there are four crimping assemblies 300 and four locking assemblies 400 respectively and they correspond one by one. Two crimping assemblies 300 and two locking assemblies 400 are provided on each side of the fixing frame 200. To improve the locking and unlocking efficiency, the locking assembly 400 includes a locking driving member 420. The locking driving member 420 is arranged on the base 100, and the locking member 410 is arranged at the output end of the locking driving member 420. The locking driving member 420 is used to drive the locking member 410 to extend between the anti - rotation portion 313 and the base 100 or to move out from between the crimping member 310 and the base 100. The above - mentioned setting realizes the automatic movement of the locking member 410. During use, the synchronous control of the four locking driving members 420 can be realized, improving the disassembly and assembly efficiency of the fixing frame 200; at the same time, improving the test efficiency of the product 1000 to be tested.

[0042] In some embodiments, the locking driving member 420 is a telescopic cylinder or an electric push rod, and the output end of the locking driving member 420 drives the locking member 410 to extend between the anti - rotation portion 313 and the base 100 or to move out from between the crimping member 310 and the base 100 along the width direction.

[0043] In order for the locking member 410 to extend between the anti-rotation portion 313 and the base 100, a clearance fit is required between the locking member 410 and the anti-rotation portion 313 and the base 100. Therefore, after the product 1000 to be tested is impacted, it will drive the anti-rotation portion 313 to move upward by a certain distance and push the locking member 410 upward so that the upper end of the locking member 410 contacts the abutting portion of the base 100. To avoid generating an axial force on the locking driving member 420 during the movement of the locking member 410 and thus damage the locking driving member 420, the locking assembly 400 further includes a floating joint 430. The output end of the locking driving member 420 and the locking member 410 are connected through the floating joint 430. Among them, one end of the floating joint 430 is screwed to the output shaft of the locking driving member 420 and can move relative to each other in the radial direction. In some embodiments, the floating joint 430 can also be replaced by a rubber member. The rubber member is rod-shaped and is connected between the locking member 410 and the output shaft of the locking driving member 420. In other embodiments, the floating joint 430 can adopt the structure in the prior art and will not be specifically limited herein.

[0044] To improve the disassembly efficiency of the fixing frame 200, in some embodiments, a crimping slope 3121 is provided at the bottom of the crimping portion 312. The crimping slope 3121 slopes upward along the direction away from the crimping rod 311. Two parallel fixing rods 210 are provided on both sides of the fixing frame 200 in the width direction. The fixing rods 210 have a bearing slope to form a bearing portion 211. The bearing slope slopes outward from top to bottom. The crimping rod 311 is hinged to the base 100 through a hinge shaft 330. The hinge shaft 330 is located outside the crimping slope 3121. During use, when the locking member 410 is removed from between the crimping member 310 and the base 100, the fixing frame 200 can be directly dragged upward. Under the action of the bearing slope and the crimping slope 3121, the crimping member 310 can be toggled outward, so that the crimping portion 312 is located outside the bearing portion 211 to avoid the fixing frame 200, and thus the fixing frame 200 can be smoothly taken out upward.

[0045] Combined Figures 2 to 4 As shown, in some embodiments, the crimping assembly 300 further includes an elastic member 320. The elastic member 320 is provided between the crimping member 310 and the base 100. The elastic member 320 is used to apply an elastic force to the crimping member 310 so that the crimping portion 312 stops on the upper side of the bearing portion 211. The setting of the elastic member 320 enables the crimping portion 312 to maintain its position on the upper side of the bearing portion 211, so that the locking member 410 can move more safely between the anti-rotation portion 313 and the base 100. Among them, the elastic member 320 is a tension spring. A stud is screwed to the base 100. A hanging hole is provided on the stud. One end of the tension spring is hooked in the hanging hole, and the other end is hooked to the anti-rotation portion 313.

[0046] In order to improve the locking efficiency of the fixing frame 200, in some embodiments, the top of the crimping portion 312 is provided with an introduction slope 3122, and the introduction slope 3122 is inclined from top to bottom in a direction away from the crimping rod 311. This arrangement allows the introduction slope 3122 to be squeezed when the fixing frame 200 with the product 1000 to be tested is placed downward on the sliding table 111, so that the crimping portion 312 moves outward and avoids the fixing frame 200. After the fixing frame 200 is placed on the sliding table 111, the crimping member 310 is reset under the action of the elastic member 320, and the crimping portion 312 crimps the pressure-bearing portion 211.

[0047] Combination Figure 5 As shown, in order to facilitate fixing the product to be tested 1000, the fixing frame 200 includes a fixing rod 210 extending in the length direction and arranged at intervals in the width direction, and at least four connecting rods 220 extending in the width direction and arranged at intervals in the length direction. Both ends of the connecting rod 220 are respectively welded to the fixing rod 210 on the corresponding side. The connecting rod 220 is provided with a mounting hole 221, and the mounting hole 221 is used to cooperate with the mounting screw to connect the product to be tested 1000. Among them, the mounting screw can pass through the mounting hole 221 and be screwed into the screw hole in the product to be tested 1000.

[0048] Combination Figure 1 As shown, in some embodiments, the base 100 includes a bottom bracket 110 and two limit plates 120, the two limit plates 120 are arranged on the bottom bracket 110 at intervals along the length direction and can be adjusted in position, and the two opposite surfaces of the two limit plates 120 form two end limit portions 1221. This arrangement improves the adaptability of the base 100 and increases the size range of the product 1000 to be tested by the impact test bench.

[0049] To ensure that the limiting plate 120 can withstand the impact, in some embodiments, the limiting plate 120 includes a connected limiting horizontal plate 121 and a limiting vertical plate 122, the limiting horizontal plate 121 and the bottom bracket 110 are screwed together by at least 20 screws, and the two opposite surfaces of the two limiting vertical plates 122 form two end limiting parts 1221. Exemplarily, the limiting horizontal plate 121 and the bottom bracket 110 are screwed together by 32 or 36 screws. Among them, the 32 screws are divided into two rows, the two rows of screws are arranged at intervals along the length direction, and the 16 screws in each row are arranged at intervals along the width direction.

[0050] To ensure the limiting ability of the limiting horizontal plate 121 , in some embodiments, the limiting plate 120 further includes a reinforcing rib 123 , and the reinforcing rib 123 is welded between the limiting horizontal plate 121 and the limiting vertical plate 122 .

[0051] In some embodiments, the base 100 further includes a mounting seat 130; the mounting seat 130 is disposed on the bottom bracket 110, and the crimping member 310 is rotatably disposed on the mounting seat 130 through a hinge shaft 330. Among them, the abutting portion is disposed on the mounting seat 130.

[0052] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Impact test bench, characterized in that, Comprising: A base (100) having a sliding table (111), and each of the two ends of the base (100) in the length direction has an end limiting portion (1221); A fixing frame (200) for fixing a product to be tested (1000) and capable of being placed between the two end limiting portions (1221) on the sliding table (111); the fixing frame (200) is provided with a pressure bearing portion (211); A crimping assembly (300), the crimping assembly (300) includes a crimping member (310), the crimping member (310) is rotatably arranged on the base (100), and the crimping member (310) is configured such that during rotation, the crimping portion (312) of the crimping member (310) can be located above the pressure bearing portion (211) to crimp the pressure bearing portion (211) or can be located beside the pressure bearing portion (211); A locking assembly (400), the locking assembly (400) includes a locking member (410), the locking member (410) is arranged to be able to move between the crimping member (310) and the base (100) when the crimping portion (312) crimps the pressure bearing portion (211) to limit the rotation of the crimping member (310), or to move out from between the crimping member (310) and the base (100).

2. The impact test bench according to claim 1, characterized in that, The crimping member (310) includes a crimping rod (311), the upper end of the crimping rod (311) protrudes in a direction perpendicular to the extension direction of the crimping rod (311) to form a crimping portion (312), the lower end of the crimping rod (311) protrudes in a direction perpendicular to the extension direction of the crimping rod (311) to form an anti-rotation portion (313), when the crimping portion (312) crimps the pressure bearing portion (211), the locking member (410) can move between the anti-rotation portion (313) and the base (100).

3. The impact test bench according to claim 2, characterized in that, The bottom of the crimping portion (312) is provided with a crimping inclined surface (3121), the crimping inclined surface (3121) is inclined from bottom to top in a direction away from the crimping rod (311), the two sides of the fixing frame (200) in the width direction are provided with two parallel fixing rods (210), the fixing rods (210) have a pressure bearing inclined surface to form a pressure bearing portion (211), the pressure bearing inclined surface is inclined from top to bottom and outwards, the crimping rod (311) is hinged to the base (100) through a hinge shaft (330), and the hinge shaft (330) is located outside the crimping inclined surface (3121).

4. The impact test bench according to claim 3, characterized in that, The crimping assembly (300) further includes an elastic member (320), the elastic member (320) is arranged between the crimping member (310) and the base (100) and is used to apply an elastic force to the crimping member (310) to make the crimping portion (312) stop above the pressure bearing portion (211).

5. The impact test bench according to claim 4, characterized in that, The top of the crimping portion (312) is provided with a guiding inclined surface (3122), the guiding inclined surface (3122) is inclined from top to bottom in a direction away from the crimping rod (311).

6. The impact test bench according to claim 4, characterized in that, At least one pressure-bearing part (211) is provided on each of the two sides of the fixing bracket (200) in the width direction; at least two crimping assemblies (300) are provided and are arranged in one-to-one correspondence with the pressure-bearing parts (211), and at least two locking assemblies (400) are provided and are arranged in one-to-one correspondence with the crimping assemblies (300).

7. The impact test bench according to any one of claims 1-6, characterized in that The locking assembly (400) includes a locking driving member (420), the locking driving member (420) is arranged on the base (100), and the locking member (410) is arranged at the output end of the locking driving member (420), and the locking driving member (420) is used to drive the locking member (410) to extend into or move out from between the crimping member (310) and the base (100).

8. The impact test bench according to claim 7, wherein The locking driving member (420) is a telescopic cylinder or an electric push rod. The output end of the locking driving member (420) drives the locking member (410) to extend into or move out from between the crimping member (310) and the base (100) in the width direction. The locking assembly (400) further includes a floating joint (430), and the output end of the locking driving member (420) and the locking member (410) are connected through the floating joint (430).

9. The impact test bench according to claim 1, characterized in that, The base (100) includes a bottom bracket (110) and two limiting plates (120). A sliding table (111) is formed at the top of the bottom bracket (110). The two limiting plates (120) are arranged on the bottom bracket (110) at intervals and with adjustable positions in the length direction, and two end limiting parts (1221) are formed on the two opposite surfaces of the two limiting plates (120).

10. The impact test bench according to any one of claims 1-6, characterized in that, The fixing bracket (200) includes fixing rods (210) extending in the length direction and arranged at intervals in the width direction, and at least four connecting rods (220) extending in the width direction and arranged at intervals in the length direction. Both ends of the connecting rods (220) are respectively connected to the corresponding fixing rods (210) on the side. The connecting rods (220) are provided with mounting holes (221), and the mounting holes (221) are used to cooperate with mounting screws to connect the product to be tested (1000).

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