Horizontal impact testing machine and testing method

Abstract

The invention relates to the technical field of mechanical environment test measurement equipment, and particularly discloses a horizontal impact testing machine and a testing method. The testing machine comprises a base, a working table assembly, a tailstock assembly and a hammer head assembly, the base is provided with a driving assembly, a guiding unit, a table top limiting assembly and a tailstock limiting assembly which are arranged at intervals in the working direction. The working table top assembly is movably connected to the table top limiting assembly and can reciprocate in the working direction relative to the table top limiting assembly, and a positive wave generating unit is arranged on the working table top assembly; the tailstock assembly is movably connected to the tailstock limiting assembly, the tailstock limiting assembly selectively fixes the tailstock assembly, and a negative wave generating unit is arranged on the tailstock assembly; the hammerhead assembly is slidably arranged on the guide unit, and the driving assembly is used for pushing the hammerhead assembly to impact the positive wave generation unit so as to drive the working table assembly to impact the negative wave generation unit. The testing machine is used for carrying out a simulation test according to the requirements of a double-wave impact test, so as to complete the detection, evaluation and verification of a to-be-tested product.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical environment test and measurement equipment, and in particular to a horizontal impact testing machine and a testing method. Background Art

[0002] At present, the most commonly used impact testing machine for marine impact testing is the pendulum-type strong impact testing machine. This testing machine uses a steel pendulum of a certain mass to impact the bottom of the table where the test piece is installed, so as to assess the impact resistance of the test piece in the vertical direction. For the impact test simulating the horizontal direction, this type of impact machine cannot be directly implemented, and the test piece needs to be flipped and installed on a 30° or 90° tooling before the test can be carried out. However, with the development needs of modern new equipment, some parts cannot be flipped and fixed due to their working characteristics or working conditions. Therefore, this type of pendulum strong impact machine cannot meet the test requirements of such test pieces.

[0003] In addition, due to the complexity of the underwater non-contact explosion shock environment, the traditional single-pulse shock tester can no longer meet the equipment test requirements of the new era. In order to more accurately simulate the underwater explosion shock environment, the dual-wave shock tester and the corresponding test specifications came into being. The dual-wave shock tester requires the shock input to be a three-fold shock spectrum, and in the shock time domain it is in the form of a dual pulse wave (positive pulse wave + negative pulse wave). With further promotion, the dual-wave shock test is expected to gradually replace the traditional single-pulse shock test. Summary of the invention

[0004] The object of the present invention is to provide a horizontal impact testing machine and a testing method for performing a simulation test according to the requirements of a double-wave impact test, thereby completing the detection, evaluation and verification of a product to be tested.

[0005] To achieve this object, the present invention adopts the following technical solutions: A horizontal impact testing machine is used to test a product to be tested, and the horizontal impact testing machine includes a base, a worktable assembly, a tailstock assembly and a hammer assembly; the base is provided with a driving assembly, a guide unit, a table limit assembly and a tailstock limit assembly arranged at intervals along a working direction, and the guide unit extends along the working direction; the worktable assembly is used to carry the product to be tested, the worktable assembly is movably connected to the table limit assembly, the worktable assembly can reciprocate along the working direction relative to the table limit assembly, and a positive wave generating unit is provided at one end of the worktable assembly close to the driving assembly; the tailstock assembly is movably connected to the tailstock limit assembly, and the tailstock limit assembly selectively fixes the tailstock assembly, and a negative wave generating unit is provided at one end of the tailstock assembly close to the worktable assembly; the hammer assembly is slidably arranged on the guide unit, and the driving assembly is used to push the hammer assembly to impact the positive wave generating unit to drive the worktable assembly to impact the negative wave generating unit.

[0006] As an optional technical solution for the horizontal impact testing machine, a stop assembly is also provided on the base, and the stop assembly 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 head assembly located in the preparation position, so that the hammer head assembly pushed by the driving assembly stops at the preparation position.

[0007] As an optional technical solution for the horizontal impact testing machine, the stop assembly includes two driving units symmetrically arranged about the guide unit, and a locking head is provided at the output end of the driving unit. The driving unit is used to control the two locking heads to move toward or away from each other. When the stop assembly is in the stopping state, the locking head abuts against the hammer head assembly located in the preparation position. When the stop assembly is in the avoidance state, the locking head and the hammer head assembly are spaced apart.

[0008] As an optional technical solution for the 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, the piston rod partially extends into the working chamber, and the piston rod divides the working chamber into a positive pressure chamber and a back pressure chamber, and the air pressure difference between the positive pressure chamber and the back pressure chamber is used to drive the piston rod.

[0009] As an optional technical solution for the horizontal impact testing machine, the tailstock assembly includes a tailstock body and a table return cylinder arranged on the tailstock body, and the table return cylinder can push the working table assembly to move along the working direction toward the driving assembly.

[0010] As an optional technical solution of the horizontal impact testing machine, a tailstock return cylinder is provided on the base, and the tailstock return cylinder can push the tailstock assembly to move along the working direction toward the driving assembly.

[0011] As an optional technical solution of the horizontal impact testing machine, the tailstock assembly can reciprocate along the working direction relative to the tailstock limiting assembly.

[0012] As an optional technical solution for the horizontal impact testing machine, the tailstock limit assembly includes a slide rail and a plurality of brake cylinders. The tailstock assembly slides with the slide rail, and all the brake cylinders are distributed on both sides of the slide rail. The output end of the brake cylinder selectively presses against the side of the tailstock assembly to clamp the tailstock assembly from both sides.

[0013] As an optional technical solution for the horizontal impact testing machine, the tailstock assembly is provided with a counterweight accommodating cavity, and the counterweight accommodating cavity is used to accommodate a counterweight block.

[0014] The horizontal impact test machine test method, applied to the above-mentioned horizontal impact test machine, comprises the following steps: S1: placing the product to be tested on the workbench assembly, and adjusting the weight of the tailstock assembly so that the weight of the tailstock assembly is equal to the sum of the weights of the workbench assembly and the product to be tested; S2: using the driving assembly to push the hammer assembly with a predetermined thrust, so that the hammer assembly impacts the positive wave generating unit, the worktable assembly hits the negative wave generating unit and rebounds after being impacted, and the tailstock assembly is fixed by the tailstock limiting assembly after being impacted; S3: Obtain and record the impact waveform of the work surface component, and collect test results; S4: After the test is completed, the tailstock limit assembly releases the tailstock assembly, resets the tailstock assembly, the worktable assembly and the hammer assembly, and removes the product to be tested.

[0015] Beneficial effects of the present invention: The horizontal impact testing machine enables the hammer assembly, work table assembly and tailstock assembly to move smoothly through the coordinated work of the driving assembly, the guide unit, the table limit assembly and the tailstock limit assembly, so as to accurately control the position and movement of the work table assembly and the tailstock assembly, ensure the reciprocating movement of the work table assembly, and simulate the actual impact scene through the positive wave generating unit and the negative wave generating unit to ensure the accuracy and reliability of the test. At the same time, the setting of the positive wave generating unit and the negative wave generating unit can simulate the impact environment in actual work, more realistically test the performance of the product to be tested, and make the test process more accurate and efficient. The above structural design is simple and reliable, without excessive constraints and restrictions in the structure. Under the condition of meeting the allowable strength of the material, a larger-sized work table can be made to meet the test requirements of large-sized products to be tested. Moreover, the hammer head assembly pushed by the driving assembly impacts the worktable assembly, generating a positive impact acceleration. After the impact, the worktable assembly hits the tailstock assembly and rebounds, generating a negative impact acceleration. At this time, the continuous positive and negative impact accelerations on the worktable assembly are the required double-wave impact, thereby obtaining a continuous positive and negative double-wave time domain impact waveform in the horizontal direction.

[0016] The test method of the horizontal impact testing machine adjusts the weight of the tailstock assembly to match the worktable assembly, uses the drive assembly to push the hammer assembly for impact testing, obtains and records the impact waveform, collects the test results, and finally resets each component to provide strong support for the performance evaluation and research and development of the product to be tested. The above test method is simple and efficient, and can effectively ensure the accuracy and reliability of the test. The test is carried out through simple and efficient steps, including adjusting the weight, impacting, obtaining data, and resetting operations to simulate the actual working scene, realizing the standardization and standardization of the impact test, and improving the accuracy and reliability of the test. The entire process design is scientific and reasonable, which can ensure the smooth progress of the test and the accuracy of the results, and improve the efficiency and safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the working principle of the horizontal impact testing machine provided by an embodiment of the present invention; Figure 2 is a schematic diagram of the system composition of a horizontal impact testing machine provided by an embodiment of the present invention; Figure 3 is a schematic structural diagram of an impact cylinder provided by an embodiment of the present invention; Figure 4 is a schematic structural diagram of a hammer head and a stopper assembly provided in an embodiment of the present invention; Figure 5 It is a front view of the table body and the tailstock body provided by the embodiment of the present invention; Figure 6is a top view of a table body and a tailstock body provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of a brake assembly provided by an embodiment of the present invention.

[0018] In the figure: 1. Driving assembly; 2. Hammer assembly; 3. Guide unit; 4. Positive wave generating unit; 5. Work table assembly; 6. Table limit assembly; 7. Negative wave generating unit; 8. Tailstock assembly; 9. Tailstock limit assembly; 11. Impact cylinder; 12. Impact hammer; 13. Stop assembly; 14. Guide rail; 15. Braking device; 16. Positive wave generator; 17. Table body; 18. Tailstock body; 19. Tailstock Sliding frame; 20, limit seat; 21, table return cylinder; 22, impact seat; 23, negative wave generator; 24, brake cylinder; 25, buffer pad; 26, tail seat return cylinder; 27, sliding block; 101, cylinder barrel; 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. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] like Figures 1 to 7 As shown, the present embodiment provides a horizontal impact testing machine for testing a product to be tested, and the horizontal impact testing machine comprises a base, a worktable assembly 5, a tailstock assembly 8 and a hammer assembly 2; the base is provided with a driving assembly 1, a guide unit 3, a table limit assembly 6 and a tailstock limit assembly 9 which are arranged at intervals along the working direction, and the guide unit 3 extends along the working direction; the worktable assembly 5 is used to carry the product to be tested, the worktable assembly 5 is movably connected to the table limit assembly 6, the worktable assembly 5 can reciprocate along the working direction relative to the table limit assembly 6, and a positive wave generating unit 4 is provided at one end of the worktable assembly 5 close to the driving assembly 1; the tailstock assembly 8 is movably connected to the tailstock limit assembly 9, and the tailstock limit assembly 9 selectively fixes the tailstock assembly 8, and a negative wave generating unit 7 is provided at one end of the tailstock assembly 8 close to the worktable assembly 5; the hammer assembly 2 is slidably arranged on the guide unit 3, and the driving 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.

[0024] The horizontal impact tester enables the hammer head assembly 2, the work table assembly 5 and the tailstock assembly 8 to move smoothly through the coordinated work of the driving assembly 1, the guide unit 3, the table limit assembly 6 and the tailstock limit assembly 9, so as to accurately control the position and movement of the work table assembly 5 and the tailstock assembly 8, ensure the reciprocating movement of the work table assembly 5, and simulate the actual impact scene through the positive wave generating unit 4 and the negative wave generating unit 7 to ensure the accuracy and reliability of the test. At the same time, the setting of the positive wave generating unit 4 and the negative wave generating unit 7 can simulate the impact environment in actual work, more realistically test the performance of the product to be tested, and make the test process more accurate and efficient. The above structural design is simple and reliable, without excessive constraints and restrictions in the structure. Under the condition of meeting the allowable strength of the material, a larger-sized work table can be made to meet the test requirements of large-sized products to be tested. Moreover, the hammer head assembly 2 pushed by the driving assembly 1 impacts the work table assembly 5, generating a positive impact acceleration. After the impact, the work table assembly 5 hits the tailstock assembly 8 and rebounds, generating a negative impact acceleration. At this time, the positive and negative continuous impact accelerations on the work table assembly 5 are the required double-wave impact, thereby obtaining a continuous positive and negative double-wave time domain impact waveform in the horizontal direction.

[0025] The above-mentioned horizontal impact tester can simulate the underwater non-contact explosion shock environment to assess the impact resistance of ships and their equipment in such mechanical environments. The dual-wave time-domain impact waveform can simulate the underwater non-contact explosion shock environment under laboratory conditions and conduct a horizontal dual-wave shock test to meet the "HJB 554-2012 Ship Equipment Dual-Wave Impact Machine Test Method", BV043 / 85 and other dual-wave shock test standards, for the impact resistance research of ships, ships and their equipment, to achieve the impact resistance performance assessment and evaluation of ships and their equipment. In particular, it provides a test platform for the underwater non-contact explosion shock environment, which is of great significance for improving the impact resistance research level of naval equipment and accelerating the development progress of new marine equipment.

[0026] In this embodiment, a stop assembly 13 is also provided on the base, and the stop assembly 13 can switch between a stop state and an avoidance state; when the stop assembly 13 is in the stop state, the stop assembly 13 can abut against the hammer head assembly 2 located in the preparation position, so that the hammer head assembly 2 pushed by the driving assembly 1 stops at the preparation position.

[0027] By flexibly switching between the stop state and the avoidance state, the hammer head assembly 2 can automatically stop after reaching the preparation position, and will not be released until the thrust received by the hammer head assembly 2 meets the design requirements, so as to ensure that the hammer head 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.

[0028] Further, the stopper assembly 13 includes two drive units 301 symmetrically arranged about the guide unit 3, and a lock head 302 is arranged at the output end of the drive unit 301. The drive unit 301 is used to control the two lock heads 302 to move toward or away from each other. When the stopper assembly 13 is in the stop state, the lock head 302 abuts against the hammer head assembly 2 located at the preparation position, and when the stopper assembly 13 is in the avoidance state, the lock head 302 is spaced apart from the hammer head assembly 2. Specifically, the drive unit 301 is a hydraulic cylinder.

[0029] By means of the drive unit and the lock 302, the stopping and releasing of the hammer assembly 2 can be controlled to ensure that the hammer assembly 2 can be smoothly pushed out under the push of a predetermined thrust, thereby ensuring the accuracy of the test results and improving the flexibility of the horizontal impact tester. At the same time, the above-mentioned setting makes the fixation of the hammer assembly 2 more reliable, so that the stopper assembly 13 can quickly and accurately control the position of the hammer assembly 2, further improving the operating accuracy of the horizontal impact tester and the safety during the test.

[0030] In this embodiment, the driving 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 partially extends into the working chamber, and the piston rod 102 divides the working chamber into a positive pressure chamber 1011 and a back pressure chamber 1012, and 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 through a front fixing seat 103 and a rear fixing seat 104.

[0031] The impact cylinder 11 in the driving assembly 1 uses compressed air as power, and utilizes the air pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012 to drive the piston rod 102 to impact, thereby realizing efficient and reliable power transmission. At the same time, by controlling the air pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012, the piston rod 102 is driven to move, thereby stably and reliably driving the hammer assembly 2. The above design has the advantages of high efficiency and stability, improves the performance of the horizontal impact tester, and makes the test process more stable and controllable.

[0032] By adjusting the air pressure difference between the positive pressure chamber 1011 and the back pressure chamber 1012 , the pushing speed of the piston rod 102 can be controlled, and thus the impact speed of the hammer assembly 2 can be controlled.

[0033] In other implementations of this embodiment, the drive component 1 is driven by hydraulic or other power. The specific driving method of the drive component 1 is determined by the staff in this field according to the actual engineering practice. The determination method is a conventional technical means in this field and will not be elaborated here.

[0034] Specifically, the driving assembly 1 can generate a propulsion speed of not less than 10 m / s and a relatively large thrust, so that the hammer assembly 2 can be pushed out at a corresponding speed by applying a predetermined thrust.

[0035] 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 groups of rollers, which can make the impact hammer 12 move freely on the guide rail 14. Specifically, a plurality of brake devices 15 are provided on both sides of the guide rail 14, and the brake devices 15 are used to selectively clamp the work table assembly 5 from both sides.

[0036] Exemplarily, the tailstock assembly 8 includes a tailstock body 18 and a table return cylinder 21 disposed on the tailstock body 18 , and the table return cylinder 21 can push the work table assembly 5 to move toward the driving assembly 1 along the working direction.

[0037] The design of the table return cylinder 21 in the tailstock assembly 8 enables the work table assembly 5 to move quickly toward the drive assembly 1 after the test is completed, thereby realizing automatic resetting of the work table assembly 5, thereby improving the working efficiency and automation of the horizontal impact testing machine and enhancing adaptability and flexibility.

[0038] In this embodiment, a tailstock return cylinder 26 is provided on the base, and the tailstock return cylinder 26 can push the tailstock assembly 8 to move toward the driving assembly 1 along the working direction.

[0039] Through the design of the tailstock return cylinder 26, the tailstock assembly 8 can quickly move toward the drive assembly 1 after the test is completed, thereby realizing automatic resetting of the tailstock assembly 8, further improving the operational convenience and efficiency of the horizontal impact testing machine. The above design facilitates resetting and adjustment after the test, thereby improving the convenience of operation.

[0040] Exemplarily, the tailstock assembly 8 can reciprocate along the working direction relative to the tailstock limiting assembly 9 .

[0041] The tailstock assembly 8 can reciprocate relative to the tailstock limit assembly 9 along the working direction, which enhances its flexibility and adaptability during the working process, can better meet different test requirements, improve the flexibility and applicability of the horizontal impact testing machine, and expand the scope of application.

[0042] Furthermore, the tailstock limiting assembly 9 includes a slide rail and a plurality of 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 ends of the brake cylinders 24 selectively press against the sides of the tailstock assembly 8 to clamp the tailstock assembly 8 from both sides.

[0043] The design of the brake cylinder 24 in the tailstock limit assembly 9 enables the output end of the brake cylinder 24 to selectively press against the side of the tailstock assembly 8 to achieve clamping and fixing of both sides of the tailstock assembly 8 to prevent lateral movement and lateral acceleration of the tailstock assembly 8. The above fixing scheme has the advantages of being stable and reliable, and can ensure the stability and safety of the tailstock assembly 8 during the test.

[0044] After the tailstock assembly 8 is impacted, the multiple brake cylinders 24 on both sides of the slide rail will extend and rub against the side of the tailstock body 18, and use the friction force to decelerate the tailstock body 18, so that the tailstock body 18 can 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 can limit and buffer the tailstock body 18 that slides due to impact to avoid rigid impact damage to the equipment or foundation.

[0045] Specifically, a sliding block 27 is fixedly connected to the output end of the brake oil 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.

[0046] In this embodiment, the tailstock assembly 8 is provided with a counterweight accommodating cavity, and the counterweight accommodating cavity is used to accommodate a counterweight block.

[0047] The tailstock assembly 8 is provided with a counterweight accommodating cavity that can accommodate the counterweight block, so that the weight of the tailstock assembly 8 can be adjusted to be equal to the sum of the weights of the worktable assembly 5 and the product to be tested. According to the momentum theorem, the kinetic energy of the table body 17 can be completely transferred to the tailstock body 18. The above design can meet the adjustment requirements of different negative wave acceleration sizes, so that the table body 17 can stop in place after the impact is completed to meet the test requirements. The above design can simulate the impact environment under different weights and working conditions, improve the test diversity of the horizontal impact tester, expand the test range and applicability, and improve practicality and convenience.

[0048] In this embodiment, the positive wave generating unit 4 includes a positive wave generator 16 disposed at the end of the table body 17, which can generate a semi-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 semi-sine negative impact waveform.

[0049] Furthermore, the materials of the positive wave generator 16 and the negative wave generator 23 are both polyurethane, which can avoid performance degradation or damage after multiple impacts, so that the horizontal impact tester can realize the test process at a relatively economical test cost and has good economy.

[0050] In other implementations of this embodiment, both the positive wave generator 16 and the negative wave generator 23 are lead cones, which can generate a post-peak sawtooth wave impact waveform. The materials and types of the positive wave generator 16 and the negative wave generator 23 can be replaced according to specific test requirements. According to different materials and structures, different impact waveforms such as half-sine and post-peak sawtooth can be generated. The specific determination method is common knowledge in the art and will not be elaborated here.

[0051] When the hammer assembly 2 is in the preparation position, the impact hammer 12 is subjected to the thrust of the impact cylinder 11, and as the pressure inside the impact cylinder 11 increases, the thrust gradually increases. When the pressure of the impact cylinder 11 reaches the predetermined thrust, the lock 302 moves away from each other under the drive of the hydraulic cylinder 301, and the limit on the end of the impact hammer 12 disappears. The impact hammer 12 is quickly pushed under the thrust of the impact cylinder 11 and impacts the table body 17. 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 an impact test, the table body 17 and the tailstock body 18 will leave the initial position. The table return cylinder 21 is used to push the table body 17 back to its original position, and the tailstock return cylinder 26 is used to push the tailstock body 18 back to its original position to achieve a reset effect, so as to facilitate the next impact test.

[0052] This embodiment also provides a horizontal impact test machine test method, which is applied to the above-mentioned horizontal impact test machine and includes the following steps: Step 1: Place the product to be tested on the workbench 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 weights of the workbench assembly 5 and the product to be tested.

[0053] Step 2: Use the driving assembly 1 to push the hammer assembly 2 with a predetermined thrust, so that the hammer assembly 2 impacts the positive wave generating unit 4. After the impact, the worktable assembly 5 hits the negative wave generating unit 7 and rebounds. After the impact, the tailstock assembly 8 is fixed by the tailstock limit assembly 9.

[0054] Step 3: Obtain and record the impact waveform of the worktable assembly 5 and collect the test results.

[0055] Step 4: After the test is completed, the tailstock limit assembly 9 releases the tailstock assembly 8, resets the tailstock assembly 8, the worktable assembly 5 and the hammer assembly 2, and removes the product to be tested.

[0056] The test method of the horizontal impact testing machine adjusts the weight of the tailstock assembly 8 to match the worktable assembly 5, uses the driving assembly 1 to push the hammer assembly 2 to perform an impact test, obtains and records the impact waveform, collects the test results, and finally resets each component, providing strong support for the performance evaluation and research and development of the product to be tested. The above test method is simple and efficient, and can effectively ensure the accuracy and reliability of the test. The test is carried out through simple and efficient steps, including adjusting the weight, impacting, obtaining data, and resetting operations to simulate the actual working scene, realizing the standardization and standardization of the impact test, and improving the accuracy and reliability of the test. The entire process design is scientific and reasonable, which can ensure the smooth progress of the test and the accuracy of the results, and improve the efficiency and safety of the test process.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled 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 list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Horizontal impact testing machine, used to test the product to be tested, characterized in that: The horizontal impact testing machine comprises: A base, the base being provided with a driving assembly (1), a guide unit (3), a tabletop limit assembly (6) and a tailstock limit assembly (9) arranged at intervals along a working direction, the guide unit (3) extending along the working direction; A work surface assembly (5) for carrying the product to be tested, the work surface assembly (5) being movably connected to the table stop assembly (6), the work surface assembly (5) being capable of reciprocating relative to the table stop assembly (6) along the working direction, and a positive wave generating unit (4) being provided at one end of the work surface assembly (5) close to the driving assembly (1); A tailstock assembly (8) is movably connected to the tailstock limiting assembly (9), and the tailstock limiting assembly (9) selectively fixes the tailstock assembly (8), and a negative wave generating unit (7) is provided at one end of the tailstock assembly (8) close to the worktable assembly (5); The hammer assembly (2) is slidably mounted on the guide unit (3), and the driving 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).

2. The horizontal impact testing machine according to claim 1, characterized in that: The base is also provided with a stop assembly (13), and the stop assembly (13) can switch between a stop state and an avoidance state; when the stop assembly (13) is in the stop state, the stop assembly (13) can abut against the hammer assembly (2) located at the preparation position, so that the hammer assembly (2) pushed by the driving assembly (1) stops at the preparation position.

3. The horizontal impact testing machine according to claim 2, characterized in that: The stop assembly (13) comprises two drive units (301) symmetrically arranged with respect to the guide unit (3); a lock head (302) is provided at an output end of the drive unit (301); 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 assembly (2) located at the preparation position; when the stop assembly (13) is in the avoidance state, the lock head (302) and the hammer assembly (2) are spaced apart.

4. The horizontal impact testing machine according to claim 1, characterized in that: The driving assembly (1) comprises an impact cylinder (11), wherein the impact cylinder (11) comprises a cylinder barrel (101) and a piston rod (102) movably connected to the cylinder barrel (101), wherein the piston rod (102) is used to impact the positive wave generating unit (4), wherein the cylinder barrel (101) forms a working chamber, wherein the piston rod (102) partially extends into the working chamber, and wherein the piston rod (102) divides the working chamber into a positive pressure chamber (1011) and a back pressure chamber (1012), wherein 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) comprises a tailstock body (18) and a table return cylinder (21) disposed on the tailstock body (18), wherein the table return cylinder (21) can push the working table assembly (5) to move along the working direction toward the driving assembly (1).

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

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

8. The horizontal impact testing machine according to claim 7, characterized in that: The tailstock limiting assembly (9) comprises a slide rail and a plurality of brake cylinders (24), the tailstock assembly (8) slidably cooperates with the slide rail, all the brake cylinders (24) are evenly distributed on both sides of the slide rail, and the output ends of the brake cylinders (24) selectively press against the side surfaces 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 to 8, characterized in that: The tailstock assembly (8) is provided with a counterweight accommodating cavity, and the counterweight accommodating cavity is used to accommodate a counterweight block.

10. A horizontal impact tester test method, applied to the horizontal impact tester according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: placing the product to be tested on the work surface assembly (5), and adjusting the weight of the tailstock assembly (8) so that the weight of the tailstock assembly (8) is equal to the sum of the weights of the work surface assembly (5) and the product to be tested; S2: using the driving assembly (1) to push the hammer assembly (2) with a predetermined thrust, so that the hammer assembly (2) impacts the positive wave generating unit (4), and after the impact, the worktable assembly (5) hits the negative wave generating unit (7) and rebounds, and after the impact, the tailstock assembly (8) is fixed by the tailstock limiting assembly (9); S3: Obtaining and recording the impact waveform of the work surface assembly (5), and collecting test results; S4: After the test is completed, the tailstock limit assembly (9) releases the tailstock assembly (8), resets the tailstock assembly (8), the worktable assembly (5) and the hammer assembly (2), and removes the product to be tested.

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