Horizontal impact testing machine

Abstract

This utility model relates to the technical field of mechanical environment testing and measurement equipment, specifically disclosing a horizontal impact testing machine. The testing machine includes a base, a worktable assembly, a tailstock assembly, and a hammer assembly. The base is equipped with a drive assembly, a guide unit, a table limiting assembly, and a tailstock limiting assembly spaced apart along the working direction. The worktable assembly is movably connected to the table limiting assembly and can reciprocate relative to the table limiting assembly along the working direction; the worktable assembly is equipped with a positive wave generating unit. The tailstock assembly is movably connected to the tailstock limiting assembly, which selectively fixes the tailstock assembly; the tailstock assembly is equipped with a negative wave generating unit. The hammer assembly slides on the guide unit, and the drive assembly pushes the hammer assembly to impact the positive wave generating unit, thereby driving the worktable assembly to impact the negative wave generating unit. This testing machine is used to perform simulation tests according to the requirements of dual-wave impact testing, thereby completing the detection, evaluation, and verification of the product under test.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411848049.2, filed on December 16, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the technical field of mechanical environment testing and measurement equipment, and in particular to a horizontal impact testing machine. Background Technology

[0004] Currently, the most commonly used impact testing machine for marine impact testing is the pendulum-type high-impact testing machine. This machine uses a steel pendulum of a certain mass to impact the bottom of the platform on which the specimen is mounted, thereby assessing the specimen's impact resistance in the vertical direction. For simulating horizontal impact tests, this type of impact machine cannot directly perform such tests; the specimen must be flipped and mounted on a 30° or 90° fixture before the test can be conducted. However, with the development of modern equipment, some components cannot be flipped and fixed due to their working characteristics or conditions. Therefore, this type of pendulum high-impact testing machine cannot meet the testing requirements for such specimens.

[0005] In addition, due to the complexity of underwater non-contact explosive impact environments, traditional single-pulse impact testing machines can no longer meet equipment testing requirements. To more accurately simulate underwater explosive impact environments, dual-wave impact testing machines and corresponding test specifications have emerged. Dual-wave impact testing machines require the impact input to be a three-segmented impact spectrum, in the form of a dual-pulse wave (positive pulse wave + negative pulse wave) in the impact time domain. With further promotion, dual-wave impact testing is expected to gradually replace traditional single-pulse impact testing. Utility Model Content

[0006] The purpose of this invention is to provide a horizontal impact testing machine for conducting simulation tests according to the requirements of dual-wave impact testing, thereby completing the detection, evaluation and verification of the product under test.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A horizontal impact testing machine is used to test products. The horizontal impact testing machine includes a base, a worktable assembly, a tailstock assembly, and a hammer assembly. The base is provided with a drive assembly, a guide unit, a table limiting assembly, and a tailstock limiting assembly spaced apart along the working direction. The guide unit extends along the working direction. The worktable assembly carries the product to be tested and is movably connected to the table limiting assembly. The worktable assembly can reciprocate relative to the table limiting assembly along the working direction. A sine wave generating unit is provided at one end of the worktable assembly near the drive assembly. The tailstock assembly... The component is movably connected to the tailstock limiting component, and the tailstock limiting component selectively fixes the tailstock component. The tailstock component has a negative wave generating unit at one end near the worktable component. The hammer head component is slidably mounted on the guide unit. The drive component is used to push the hammer head component to impact the positive wave generating unit, thereby driving the worktable component to impact the negative wave generating unit. The hammer head component, pushed by the drive component, impacts the worktable component, generating a positive impact acceleration. After being impacted, the worktable component impacts the tailstock component and rebounds, generating a negative impact acceleration.

[0009] As an optional technical solution for the horizontal impact testing machine, the base is also provided with a stop assembly, which can switch between a stop state and an avoidance state; when the stop assembly is in the stop state, the stop assembly can abut against the hammer assembly located in the ready position, so that the hammer assembly pushed by the drive assembly stops in the ready position.

[0010] As an optional technical solution for a horizontal impact testing machine, the stop assembly includes two drive units symmetrically arranged about the guide unit. The output end of the drive unit is provided with a locking head. The drive unit is used to control the two locking heads to move towards or away from each other. When the stop assembly is in the stop state, the locking head abuts against the hammer head assembly located in the ready position. When the stop assembly is in the avoidance state, the locking head and the hammer head assembly are spaced apart.

[0011] As an optional technical solution for a horizontal impact testing machine, the driving assembly includes an impact cylinder, which includes a cylinder barrel and a piston rod movably connected to the cylinder barrel. The piston rod is used to impact the positive wave generating unit. The cylinder barrel forms a working chamber, and the piston rod extends into the working chamber. The piston rod divides the working chamber into a positive pressure chamber and a back pressure chamber. The air pressure difference between the positive pressure chamber and the back pressure chamber is used to drive the piston rod.

[0012] As an optional technical solution for a horizontal impact testing machine, the tailstock assembly includes a tailstock body and a table return cylinder disposed on the tailstock body. The table return cylinder can push the worktable assembly to move toward the drive assembly along the working direction.

[0013] As an optional technical solution for the horizontal impact testing machine, the base is provided with a tailstock return cylinder, which can push the tailstock assembly to move toward the drive assembly along the working direction.

[0014] As an optional technical solution for a horizontal impact testing machine, the tailstock assembly can reciprocate relative to the tailstock limiting assembly along the working direction.

[0015] As an optional technical solution for a horizontal impact testing machine, the tailstock limiting assembly includes a slide rail and several brake cylinders. The tailstock assembly slides with the slide rail, and all the brake cylinders are evenly distributed on both sides of the slide rail. The output end of the brake cylinders selectively presses against the side of the tailstock assembly to clamp the tailstock assembly from both sides.

[0016] As an optional technical solution for the horizontal impact testing machine, the tailstock assembly is provided with a counterweight receiving cavity, which is used to store the counterweight block.

[0017] The beneficial effects of this utility model are:

[0018] This horizontal impact testing machine, through the coordinated operation of the drive assembly, guide unit, table limiting assembly, and tailstock limiting assembly, enables the smooth movement of the hammer assembly, table assembly, and tailstock assembly. This allows for precise control of the position and movement of the table assembly and tailstock assembly, ensuring the reciprocating movement of the table assembly. Positive and negative wave generating units simulate actual impact scenarios, guaranteeing the accuracy and reliability of the test. Simultaneously, the inclusion of positive and negative wave generating units simulates the impact environment in actual working conditions, providing a more realistic test of the product's performance, making the testing process more precise and efficient. The aforementioned structural design is simple and reliable, with minimal structural constraints and limitations. While meeting the allowable strength requirements of the materials, a larger table size can be manufactured to meet the testing requirements of large-sized products. Moreover, the hammer assembly pushed by the driven component impacts the worktable assembly, generating a positive impact acceleration. After being impacted, the worktable assembly strikes the tailstock assembly and rebounds, generating a negative impact acceleration. At this time, the continuous positive and negative impact accelerations on the worktable assembly constitute the required double-wave impact, thereby obtaining a continuous positive and negative double-wave time-domain impact waveform in the horizontal direction. Attached Figure Description

[0019] Figure 1This is a schematic diagram illustrating the working principle of the horizontal impact testing machine provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the system composition of the horizontal impact testing machine provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the impact cylinder provided in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the hammer head and stop assembly provided in this embodiment of the utility model;

[0023] Figure 5 This is a front view of the tabletop body and the tailstock body provided in this embodiment of the utility model;

[0024] Figure 6 This is a top view of the tabletop body and the tailstock body provided in this embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the brake assembly provided in an embodiment of the present invention.

[0026] In the picture:

[0027] 1. Drive assembly; 2. Hammer head assembly; 3. Guide unit; 4. Positive wave generating unit; 5. Worktable assembly; 6. Worktable limiting assembly; 7. Negative wave generating unit; 8. Tailstock assembly; 9. Tailstock limiting assembly; 11. Impact cylinder; 12. Impact hammer head; 13. Stop assembly; 14. Guide rail; 15. Braking device; 16. Positive wave generator; 17. Worktable body; 18. Tailstock body; 19. Tailstock 20. Sliding frame; 21. Limiting seat; 22. Table return cylinder; 23. Impact seat; 24. Negative wave generator; 25. Brake cylinder; 26. Buffer pad; 27. Tailstock return cylinder; 101. Sliding block; 101. Cylinder; 1011. Positive pressure chamber; 1012. Back pressure chamber; 102. Piston rod; 103. Front end fixing seat; 104. Tail end fixing seat; 301. Drive unit; 302. Lock head. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] like Figures 1 to 7As shown, this embodiment provides a horizontal impact testing machine for testing products. The horizontal impact testing machine includes a base, a worktable assembly 5, a tailstock assembly 8, and a hammer assembly 2. The base is provided with a drive assembly 1, a guide unit 3, a table limiting assembly 6, and a tailstock limiting assembly 9 spaced apart along the working direction. The guide unit 3 extends along the working direction. The worktable assembly 5 is used to support the product to be tested. The worktable assembly 5 is movably connected to the table limiting assembly 6 and can reciprocate relative to the table limiting assembly 6 along the working direction. A positive wave generating unit 4 is provided at one end of the worktable assembly 5 near the drive assembly 1. The tailstock assembly 8 is movably connected to the tailstock limiting assembly 9, and the tailstock limiting assembly 9 selectively fixes the tailstock assembly 8. A negative wave generating unit 7 is provided at one end of the tailstock assembly 8 near the worktable assembly 5. The hammer assembly 2 is slidably mounted on the guide unit 3. The drive assembly 1 is used to push the hammer assembly 2 to impact the positive wave generating unit 4, thereby driving the worktable assembly 5 to impact the negative wave generating unit 7.

[0033] This horizontal impact testing machine, through the coordinated operation of drive assembly 1, guide unit 3, table limiting assembly 6, and tailstock limiting assembly 9, enables the smooth movement of hammer assembly 2, table assembly 5, and tailstock assembly 8. This allows for precise control of the position and movement of table assembly 5 and tailstock assembly 8, ensuring the reciprocating movement of table assembly 5. Positive wave generating unit 4 and negative wave generating unit 7 simulate actual impact scenarios, guaranteeing the accuracy and reliability of the test. Simultaneously, the positive wave generating unit 4 and negative wave generating unit 7 simulate the impact environment in actual working conditions, more realistically testing the performance of the product under test, making the testing process more precise and efficient. The above structural design is simple and reliable, with few structural constraints and limitations. While meeting the allowable strength of the materials, a larger table size can be manufactured to meet the testing requirements of large-sized products. Moreover, the hammer assembly 2, driven by the driven assembly 1, impacts the worktable assembly 5, generating a positive impact acceleration. After being impacted, the worktable assembly 5 strikes the tailstock assembly 8 and rebounds, generating a negative impact acceleration. At this time, the continuous positive and negative impact accelerations on the worktable assembly 5 constitute the required double-wave impact, thereby obtaining a continuous positive and negative double-wave time-domain impact waveform in the horizontal direction.

[0034] The aforementioned horizontal impact testing machine can simulate underwater non-contact explosive impact environments to assess the impact resistance of ships and their equipment under such mechanical conditions. The dual-wave time-domain impact waveform can simulate underwater non-contact explosive impact environments under laboratory conditions, conducting horizontal dual-wave impact tests to meet the dual-wave impact test standards such as "HJB 554-2012 Ship Equipment Dual-Wave Impact Machine Test Method" and BV043 / 85. This provides a testing platform for the impact resistance research of ships, vessels, and their equipment, enabling the assessment and evaluation of their impact resistance performance. In particular, it provides a testing platform for underwater non-contact explosive impact environments, which is of great significance for improving the impact resistance research level of naval equipment and accelerating the development of new marine equipment.

[0035] In this embodiment, the base is also provided with a stop component 13, which can switch between a stop state and a avoidance state. When the stop component 13 is in the stop state, the stop component 13 can abut against the hammer head component 2 located in the ready position, so that the hammer head component 2 pushed by the drive component 1 stops in the ready position.

[0036] By flexibly switching between the stop assembly 13 and the avoidance state, the hammer assembly 2 can be automatically stopped after reaching the ready position, and released when the thrust received by the hammer assembly 2 meets the design requirements. This ensures that the hammer assembly 2 impacts the positive wave generating unit 4 with a predetermined thrust, thereby ensuring the accurate conduct of the test and improving the convenience of operation and the accuracy of the test.

[0037] Furthermore, the stop assembly 13 includes two drive units 301 symmetrically arranged about the guide unit 3. Each drive unit 301 has a locking head 302 at its output end. The drive units 301 control the two locking heads 302 to move towards or away from each other. When the stop assembly 13 is in the stop state, the locking heads 302 abut against the hammer assembly 2 in the ready position. When the stop assembly 13 is in the avoidance state, the locking heads 302 and the hammer assembly 2 are spaced apart. Specifically, the drive unit 301 is a hydraulic cylinder.

[0038] The drive unit and locking head 302 enable control over the stopping and releasing of the hammer assembly 2, ensuring its smooth deployment under a predetermined thrust. This guarantees the accuracy of the test results and improves the operational flexibility of the horizontal impact testing machine. Furthermore, the aforementioned design makes the fixing of the hammer assembly 2 more reliable, allowing the stop assembly 13 to quickly and accurately control its position, further enhancing the operational precision and safety of the horizontal impact testing machine during testing.

[0039] In this embodiment, the drive assembly 1 includes an impact cylinder 11, which includes a cylinder barrel 101 and a piston rod 102 movably connected to the cylinder barrel 101. The piston rod 102 is used to impact the positive wave generating unit 4. The cylinder barrel 101 forms a working chamber, and the piston rod 102 partially extends into the working chamber, dividing the working chamber into a positive pressure chamber 1011 and a back pressure chamber 1012. The air pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012 is used to drive the piston rod 102. Specifically, the cylinder barrel 101 is fixed to the base by a front end fixing seat 103 and a rear end fixing seat 104.

[0040] The impact cylinder 11 in the drive assembly 1 uses compressed air as power, utilizing the pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012 to drive the piston rod 102 for impact, achieving efficient and reliable power transmission. Simultaneously, by controlling the pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012, the piston rod 102 is moved, thus stably and reliably driving the hammer assembly 2. This design offers advantages of high efficiency and stability, improving the performance of the horizontal impact testing machine and making the testing process more stable and controllable.

[0041] By adjusting the pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012, the speed at which the piston rod 102 is extended can be controlled, thereby controlling the impact speed of the hammer assembly 2.

[0042] In other embodiments of this example, the drive component 1 is driven by hydraulic or other power. The specific driving method of the drive component 1 is determined by those skilled in the art based on the actual engineering situation. The determination method is a conventional technical means in the art and will not be elaborated here.

[0043] Specifically, the drive assembly 1 is capable of generating a propulsion speed of not less than 10 m / s and a large thrust, thereby enabling the hammer assembly 2 to be pushed out at a corresponding speed by applying a predetermined thrust.

[0044] In this embodiment, the guide unit 3 includes a guide rail 14, and the hammer assembly 2 includes an impact hammer 12. The impact hammer 12 is made of steel, and the bottom of the impact hammer 12 has multiple sets of rollers, which allows the impact hammer 12 to move freely on the guide rail 14. Specifically, several braking devices 15 are provided on both sides of the guide rail 14, and the braking devices 15 are used to selectively clamp the worktable assembly 5 from both sides.

[0045] For example, the tailstock assembly 8 includes a tailstock body 18 and a table return cylinder 21 disposed on the tailstock body 18. The table return cylinder 21 can push the worktable assembly 5 to move toward the drive assembly 1 along the working direction.

[0046] The design of the table return cylinder 21 in the tailstock assembly 8 enables the worktable assembly 5 to move quickly toward the drive assembly 1 after the test, thereby realizing the automatic reset of the worktable assembly 5, which improves the working efficiency and automation of the horizontal impact testing machine, and enhances its adaptability and flexibility.

[0047] In this embodiment, a tailstock return cylinder 26 is provided on the base, which can push the tailstock assembly 8 to move toward the drive assembly 1 along the working direction.

[0048] The tailstock return cylinder 26 is designed so that the tailstock assembly 8 can move quickly toward the drive assembly 1 after the test, realizing the automatic reset of the tailstock assembly 8, which further improves the operation convenience and efficiency of the horizontal impact testing machine. The above design facilitates reset and adjustment after the test and improves the ease of operation.

[0049] For example, the tailstock assembly 8 can reciprocate relative to the tailstock limiting assembly 9 in the working direction.

[0050] The tailstock assembly 8 can reciprocate relative to the tailstock limiting assembly 9 along the working direction, which enhances its flexibility and adaptability during operation, better meets different testing needs, improves the flexibility and applicability of the horizontal impact testing machine, and expands its applicable range.

[0051] Furthermore, the tailstock limiting assembly 9 includes a slide rail and several brake cylinders 24. The tailstock assembly 8 slides with the slide rail, and all the brake cylinders 24 are evenly distributed on both sides of the slide rail. The output end of the brake cylinder 24 selectively presses against the side of the tailstock assembly 8 to clamp the tailstock assembly 8 from both sides.

[0052] The brake cylinder 24 in the tailstock limiting assembly 9 is designed so that its output end can selectively press against the side of the tailstock assembly 8 to clamp and fix both sides of the tailstock assembly 8, preventing lateral movement and lateral acceleration. This fixing scheme is stable and reliable, ensuring the stability and safety of the tailstock assembly 8 during testing.

[0053] After the tailstock assembly 8 is impacted, multiple brake cylinders 24 on both sides of the slide rail will extend and rub against the side of the tailstock body 18, using friction to decelerate the tailstock body 18, thus allowing the tailstock body 18 to stop after moving a short distance. Specifically, a buffer pad 25 is installed at the end of the limit seat 20, which can play a safety protection role and limit and buffer the tailstock body 18 that slides due to impact, so as to avoid rigid impact damage to the equipment or foundation.

[0054] Specifically, a sliding block 27 is fixedly connected to the output end of the brake cylinder 24, and the sliding block 27 is used to contact the side of the tailstock body 18. A tailstock sliding frame 19 is fixedly connected to the base, and the sliding block 27 selectively passes through the tailstock sliding frame 19.

[0055] In this embodiment, the tailstock assembly 8 is provided with a counterweight receiving cavity, which is used to store the counterweight block.

[0056] The tailstock assembly 8 is equipped with a counterweight receiving cavity to accommodate the counterweight, allowing the weight of the tailstock assembly 8 to be adjusted to be equal to the sum of the weights of the worktable assembly 5 and the product under test. According to the momentum theorem, the kinetic energy of the table body 17 can be completely transferred to the tailstock body 18 at this point. This design can meet the adjustment requirements for different negative wave acceleration magnitudes, thus enabling the table body 17 to remain in its original position after impact, meeting the testing requirements. This design simulates impact environments under different weights and operating conditions, improving the testing versatility of the horizontal impact testing machine, expanding its testing range and applicability, and enhancing its practicality and convenience.

[0057] In this embodiment, the positive wave generating unit 4 includes a positive wave generator 16 disposed at the end of the platform body 17, which can generate a half-sine positive impact waveform; the negative wave generating unit 7 includes a negative wave generator 23 disposed at the end of the tailstock body 18, which can generate a half-sine negative impact waveform.

[0058] Furthermore, both the positive wave generator 16 and the negative wave generator 23 are made of polyurethane, which can prevent performance degradation or damage after multiple impacts, enabling the horizontal impact testing machine to achieve the testing process at a relatively economical cost, thus exhibiting good economic efficiency.

[0059] In other embodiments of this example, both the positive wave generator 16 and the negative wave generator 23 are lead cones, capable of generating impact waveforms with sawtooth waves at the rear peak. The materials of the positive wave generator 16 and the negative wave generator 23 can be changed according to specific test requirements. Depending on the materials and structures, different impact waveforms such as half-sine and sawtooth waves at the rear peak can be generated. The specific determination method is common knowledge in the art and will not be elaborated here.

[0060] When the hammer assembly 2 is in the ready position, the impact hammer 12 is pushed by the impact cylinder 11, and the thrust gradually increases as the internal pressure of the impact cylinder 11 rises. When the pressure of the impact cylinder 11 reaches the predetermined thrust, the locking heads 302 move away from each other under the drive of the hydraulic cylinder 301, the limit on the end of the impact hammer 12 disappears, and the impact hammer 12 is quickly pushed by the thrust of the impact cylinder 11, impacting the table body 17 once. After being impacted, the table body 17 generates positive acceleration and moves. The impact seat 22 at the end of the table body 17 collides with the negative wave generator 23 at the end of the tailstock body 18, thereby generating negative acceleration. Therefore, after being impacted once, the table body 17 can generate continuous positive and negative double wave impacts. After completing one impact test, the table body 17 and the tailstock body 18 will leave the initial position. The table body 17 is pushed back to its original position using the table return cylinder 21, and the tailstock body 18 is pushed back to its original position using the tailstock return cylinder 26, thus achieving a reset function to facilitate the next impact test.

[0061] This embodiment also provides a horizontal impact testing method, applied to the aforementioned horizontal impact testing machine, including the following steps:

[0062] Step 1: Place the product to be tested on the worktable assembly 5, and adjust the weight of the tailstock assembly 8 so that the weight of the tailstock assembly 8 is equal to the sum of the weight of the worktable assembly 5 and the product to be tested.

[0063] Step 2: Use the drive component 1 to push the hammer head component 2 with a predetermined thrust, so that the hammer head component 2 impacts the positive wave generating unit 4. After being impacted, the worktable component 5 hits the negative wave generating unit 7 and rebounds. After being impacted, the tailstock component 8 is fixed by the tailstock limiting component 9.

[0064] Step 3: Acquire and record the impact waveform of the worktable assembly 5, and collect the test results.

[0065] Step 4: After the test is completed, the tailstock limiting component 9 releases the tailstock component 8, resets the tailstock component 8, the worktable component 5 and the hammer component 2, and removes the product to be tested.

[0066] This horizontal impact testing machine method adjusts the weight of the tailstock assembly 8 to match the worktable assembly 5, uses the drive assembly 1 to push the hammer assembly 2 to conduct the impact test, acquires and records the impact waveform, collects the test results, and finally resets all components, providing strong support for the performance evaluation and research and development of the product under test. The above testing method is simple and efficient, effectively ensuring the accuracy and reliability of the test. The simple and efficient steps, including weight adjustment, impact, data acquisition, and reset, simulate actual working scenarios, achieving standardization and normalization of impact testing, and improving the accuracy and reliability of the test. The entire process design is scientific and reasonable, ensuring the smooth conduct of the test and the accuracy of the results, improving the efficiency and safety of the testing process.

[0067] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A horizontal impact testing machine, used for testing products, characterized in that, The horizontal impact testing machine includes: The base is provided with a drive assembly (1), a guide unit (3), a table limiting assembly (6) and a tailstock limiting assembly (9) arranged at intervals along the working direction, and the guide unit (3) extends along the working direction; The worktable assembly (5) is used to support the product under test. The worktable assembly (5) is movably connected to the table limiting assembly (6). The worktable assembly (5) can reciprocate relative to the table limiting assembly (6) along the working direction. A positive wave generating unit (4) is provided at one end of the worktable assembly (5) near the drive assembly (1). Tailstock assembly (8) is movably connected to tailstock limiting assembly (9), and tailstock limiting assembly (9) selectively fixes tailstock assembly (8). A negative wave generating unit (7) is provided at one end of tailstock assembly (8) near the worktable assembly (5). Hammer assembly (2) is slidably mounted on the guide unit (3). The drive assembly (1) is used to push the hammer assembly (2) to impact the positive wave generating unit (4) so ​​as to drive the worktable assembly (5) to impact the negative wave generating unit (7). The hammer assembly (2), driven by the drive assembly (1), impacts the worktable assembly (5), generating a positive impact acceleration. After being impacted, the worktable assembly (5) strikes the tailstock assembly (8) and rebounds, generating a negative impact acceleration.

2. The horizontal impact testing machine according to claim 1, characterized in that, The base is also provided with a stop assembly (13), which can switch between a stop state and a avoidance state. When the stop assembly (13) is in the stop state, the stop assembly (13) can abut against the hammer assembly (2) located in the ready position, so that the hammer assembly (2) pushed by the drive assembly (1) stops in the ready position.

3. The horizontal impact testing machine according to claim 2, characterized in that, The stop assembly (13) includes two drive units (301) symmetrically arranged about the guide unit (3). The output end of the drive unit (301) is provided with a lock head (302). The drive unit (301) is used to control the two lock heads (302) to move towards or away from each other. When the stop assembly (13) is in the stop state, the lock head (302) abuts against the hammer head assembly (2) located in the preparation position. When the stop assembly (13) is in the avoidance state, the lock head (302) and the hammer head assembly (2) are spaced apart.

4. The horizontal impact testing machine according to claim 1, characterized in that, The drive assembly (1) includes an impact cylinder (11), which includes a cylinder barrel (101) and a piston rod (102) movably connected to the cylinder barrel (101). The piston rod (102) is used to impact the positive wave generating unit (4). The cylinder barrel (101) forms a working chamber. The piston rod (102) extends into the working chamber and divides the working chamber into a positive pressure chamber (1011) and a back pressure chamber (1012). The air pressure difference between the positive pressure chamber (1011) and the back pressure chamber (1012) is used to drive the piston rod (102).

5. The horizontal impact testing machine according to claim 1, characterized in that, The tailstock assembly (8) includes a tailstock body (18) and a table return cylinder (21) disposed on the tailstock body (18). The table return cylinder (21) can push the worktable assembly (5) to move toward the drive assembly (1) along the working direction.

6. The horizontal impact testing machine according to claim 1, characterized in that, The base is provided with a tailstock return cylinder (26), which can push the tailstock assembly (8) to move toward the drive assembly (1) along the working direction.

7. The horizontal impact testing machine according to claim 1, characterized in that, The tailstock assembly (8) can reciprocate relative to the tailstock limiting assembly (9) along the working direction.

8. The horizontal impact testing machine according to claim 7, characterized in that, The tailstock limiting assembly (9) includes a slide rail and several brake cylinders (24). The tailstock assembly (8) slides with the slide rail. All the brake cylinders (24) are evenly distributed on both sides of the slide rail. The output end of the brake cylinder (24) selectively presses against the side of the tailstock assembly (8) to clamp the tailstock assembly (8) from both sides.

9. The horizontal impact testing machine according to any one of claims 1-8, characterized in that, The tailstock assembly (8) is provided with a counterweight receiving cavity, which is used to store the counterweight block.

Images