Light Weapon Comprehensive Performance Test Bench

Abstract

This utility model discloses a comprehensive performance testing bench for light weapons, relating to the field of weapon testing technology. It includes a base fixedly mounted on a test bench frame; a guide shaft fixedly connected to the base; a sliding seat slidably connected to the guide shaft; a buffer assembly mounted on the guide shaft and distributed on both sides of the sliding seat; clamp assemblies distributed on both sides of the upper end of the sliding seat for clamping the test piece; a rubber limiting block fixedly mounted on the base and located on one side of the sliding seat; an acceleration sensor fixedly mounted on the sliding seat for monitoring the acceleration value of the sliding seat; a laser displacement sensor fixedly mounted on the sliding seat for monitoring the forward and backward displacement value of the sliding seat; after the test piece is fired, it generates recoil force, driving the sliding seat to slide along the guide shaft and being buffered by the buffer assembly until it stops moving; a trigger firing device is installed in the trigger frame of the test piece for pulling the trigger; this testing bench has an optimized structure, meeting the needs of light weapon performance testing and evaluation.

Description

Technical Field

[0001] This utility model relates to the field of weapon testing technology, and in particular to a test bench for comprehensive performance testing of light weapons. Background Technology

[0002] In the design, development, production, and use of light weapons (such as pistols, submachine guns, submachine guns, sniper rifles, rocket launchers, and grenade launchers), accurate assessment of their lifespan, durability, and stability is crucial. Currently, traditional testing methods have many shortcomings. On the one hand, there is a lack of testing equipment capable of simultaneously simulating multiple real-world operating conditions and comprehensively testing related performance, making it difficult to accurately assess the weapon's true performance under complex circumstances. On the other hand, existing monitoring methods cannot obtain key parameters such as impulse, recoil, acceleration, and displacement in real time and with precision, lacking reliable data support, resulting in a lack of accurate basis for judging whether the weapon is damaged, whether its stability is reliable, and its lifespan limit. Conventional methods require on-site observation and evaluation by personnel; conventional test benches lack buffer structures and are all rigid connections, which significantly impact the lifespan of the test bench; furthermore, different testing stages often need to be performed on different equipment, making operation cumbersome and inefficient.

[0003] Therefore, there is an urgent need to design an integrated, high-precision test bench for the comprehensive performance testing of lightweight weapons to meet the needs of performance testing and evaluation of lightweight weapons and to solve the problems existing in the above-mentioned technologies. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated, high-precision light weapon comprehensive performance testing platform that can simultaneously simulate multiple operating conditions, facilitate the monitoring of relevant parameters and obtain corresponding data support, has an optimized structure and is easy to operate, meets the diverse needs of life testing and durability testing, has high flexibility, can adapt to the firing requirements of different types of light weapons, and provides a scientific basis for weapon research and development improvement, quality control and use maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A comprehensive performance testing platform for light weapons includes:

[0007] A base, which is fixedly mounted on a test bench;

[0008] A guide shaft, which is fixedly connected to the base;

[0009] A sliding seat, which is slidably connected to the guide shaft;

[0010] A buffer assembly, which is mounted on the guide shaft and distributed on both sides of the slide seat;

[0011] A clamping assembly, wherein the clamping assembly is distributed and installed on both sides of the upper end of the sliding seat for clamping the specimen;

[0012] A rubber limiting block, which is fixedly installed on the base and located on one side of the sliding seat;

[0013] An acceleration sensor is fixedly mounted on a sliding base to monitor the acceleration value of the sliding base;

[0014] A laser displacement sensor is fixedly mounted on a sliding base to monitor the front-to-back displacement value of the sliding base;

[0015] After the test piece is launched, it generates recoil force and drives the sliding seat to slide along the guide shaft, and is buffered by the buffer assembly until it stops moving.

[0016] A trigger firing device, which is installed in the trigger frame of the specimen for pulling the trigger.

[0017] Furthermore, the buffer component includes:

[0018] Buffer spring and rubber buffer cylinder;

[0019] The buffer spring and the rubber buffer cylinder are respectively sleeved on the guide shaft;

[0020] The sliding seat is located between the buffer spring and the rubber buffer cylinder;

[0021] After the test piece is launched, it generates recoil force, which drives the sliding seat to move along the guide axis in the direction of the buffer spring and compresses the buffer spring until it rebounds.

[0022] The buffer spring rebounds and drives the sliding seat to move along the guide axis towards the rubber buffer cylinder, compressing the rubber buffer cylinder until it rebounds.

[0023] The sliding seat reciprocates along the guide shaft and is buffered by a buffer spring and a rubber buffer cylinder until it stops moving.

[0024] Furthermore, the rubber limiting block is located between two sets of buffer springs;

[0025] The sliding seat moves along the guide shaft until it touches the rubber limiting block to limit the compression limit of the buffer spring.

[0026] Furthermore, the sliding seat has a U-shaped structure with the opening facing downwards;

[0027] Mounting holes are provided on both sides of the sliding seat;

[0028] The guide shaft is inserted into the mounting hole where a linear bearing is installed.

[0029] Furthermore, guide holes are provided on both sides of the base;

[0030] The guide shaft extends to the outside of the guide hole at both ends;

[0031] External threads are formed on the outer periphery of both ends of the guide shaft;

[0032] Tighten the nut on the guide shaft located outside the guide hole to fix the base to the guide shaft.

[0033] Furthermore, the clamp assembly includes:

[0034] The support base is fixedly mounted on the sliding base;

[0035] A retaining ring, which is connected to the support base;

[0036] The retaining ring and the support base form a clamping space for clamping the specimen.

[0037] Furthermore, the base plate has strip-shaped slots.

[0038] Bolts for connecting the base and the test bench are installed in the strip-shaped slot.

[0039] Furthermore, the trigger firing device includes:

[0040] Servo motors, servo arms, and external controllers;

[0041] The external controller transmits signals to the servo motor, which then drives the trigger to rotate, enabling continuous firing.

[0042] In the above technical solution, the lightweight weapon comprehensive performance testing platform of this utility model has the following beneficial effects:

[0043] 1. This test bench has comprehensive performance testing capabilities, enabling comprehensive testing of weapon lifespan, durability, and multiple performance parameters on the same test bench, which greatly improves testing efficiency, shortens weapon development cycle, and reduces testing costs.

[0044] 2. This test bench simulates real-world scenarios. By simulating various actual usage scenarios and environmental conditions, the test results are closer to the performance of the weapon in real-world use, providing a more reliable basis for the optimized design and quality improvement of the weapon.

[0045] 3. This test bench is equipped with high-precision testing capabilities. It employs high-precision sensors, advanced measurement technology, and professional data processing algorithms to ensure the accuracy and reliability of test data, enabling precise evaluation of various performance indicators of the weapon.

[0046] 4. The test bench is easy to operate. The design of the test bench focuses on the convenience of operation, has a high degree of automation, and has relatively low technical requirements for operators. At the same time, it has good maintainability and is convenient to use and maintain in different scenarios. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0048] Figure 1 A schematic diagram of the structure of the light weapon comprehensive performance test bench provided in this embodiment of the utility model;

[0049] Figure 2 A schematic diagram of the structure of the light weapon comprehensive performance test bench provided in this embodiment of the utility model;

[0050] Figure 3 A partial structural schematic diagram of the lightweight weapon comprehensive performance testing platform provided for an embodiment of this utility model;

[0051] Figure 4 A front view of the light weapon comprehensive performance testing rig provided for an embodiment of this utility model;

[0052] Figure 5 A side view of the light weapon comprehensive performance testing rig provided for an embodiment of this utility model;

[0053] Figure 6 A top view of the light weapon comprehensive performance testing rig provided for an embodiment of this utility model;

[0054] Figure 7 A cross-sectional view of the lightweight weapon comprehensive performance testing rig provided for an embodiment of this utility model;

[0055] Figure 8 A schematic diagram showing the structure and installation position of the trigger firing device in the light weapon comprehensive performance test bench provided for embodiments of this utility model;

[0056] Figure 9 A schematic diagram showing the structure and installation position of the trigger firing device in the light weapon comprehensive performance test bench provided for embodiments of this utility model.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. Base; 2. Guide shaft; 3. Sliding seat; 4. Buffer assembly; 5. Clamp assembly; 6. Rubber limit block; 8. Trigger firing device; 9. Linear bearing;

[0059] 11. Guide hole; 12. Strip-shaped groove;

[0060] 31. Mounting holes;

[0061] 41. Buffer spring; 42. Rubber buffer cylinder;

[0062] 51. Support base; 52. Snap ring;

[0063] 71. Accelerometer; 72. Laser displacement sensor;

[0064] 81. Servo motor; 82. Servo arm. Detailed Implementation

[0065] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0066] It should be noted that the terms "upper end", "both sides", "side wall", "both ends", "outer side", etc. used in this document indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of illustrative purposes and are not intended to 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.

[0067] See Figures 1-9 As shown;

[0068] The light weapon comprehensive performance test bench includes a base 1, a guide shaft 2, a sliding seat 3, a buffer assembly 4, a clamp assembly 5, a rubber limit block 6, an acceleration sensor 71, a laser displacement sensor 72, a trigger firing device 8, and a linear bearing 9. The guide shaft 2 is installed on the base 1, and the sliding seat 3 is connected to the guide shaft 2. The sliding seat 3 can slide back and forth along the guide shaft 2. The buffer assembly 4 is set on the guide shaft 2 and located at both ends of the sliding seat 3. The clamp assembly 5 is set on the sliding seat 3. The clamp assembly 5 is used to clamp the test piece. When the test piece is fired, the recoil generated when the bullet is fired causes the sliding seat 3 to move backward. When the sliding seat 3 slides on the guide shaft 2, it is buffered by the buffer assembly 4 until the sliding seat 3 returns to stability.

[0069] Specifically, the base 1 is used to fix the entire set of test equipment. The base plate of the base 1 has a strip-shaped slot 12, and the upper bolt is installed in the strip-shaped slot 12. The base 1 is connected to the test bench by the bolt.

[0070] Guide holes 11 are provided on both sides of the base 1. The guide shaft 3 is installed through the guide holes, that is, the guide shaft 3 passes through the guide holes 11 and extends to the outside of the guide holes 11 at both ends. The outer circumference of both ends of the guide shaft 2 is formed with external threads. Then, round nuts are tightened on both ends of the guide shaft 2 to connect and fix the base 1 and the guide shaft 2.

[0071] The sliding seat 3 is slidably connected to the guide shaft 2. Mounting holes 31 are provided on both sides of the sliding seat 3. The guide shaft 2 is inserted into the mounting holes 31, and a linear bearing 9 is installed at the mounting holes 31. The linear bearing 9 is used to reduce the friction of the sliding seat 3 when it moves back and forth on the guide shaft 2. It is equipped with balls inside to reduce friction.

[0072] The buffer assembly 4 includes a buffer spring 41 and a rubber buffer cylinder 42. The buffer spring 41 and the rubber buffer cylinder 42 are respectively mounted on the guide shaft 2 and are located on both sides of the sliding seat 3. When the test firing is carried out, the bullet will generate recoil force, which will drive the sliding seat 3 to gradually compress the buffer spring 41. The compressed buffer spring 41 will gradually rebound and push the sliding seat 3 towards the rubber buffer cylinder 42. The rubber buffer cylinder 42 also has elasticity and will be gradually compressed and rebound. Through the repeated compression and stretching motion of the buffer spring 41 and the rubber buffer cylinder 42, the sliding seat 3 slides back and forth on the guide shaft 2. The buffer spring 41 and the rubber buffer cylinder 42 will gradually return to their initial state, and the sliding seat 3 will be stably mounted on the guide shaft 2. The buffer spring 41 provides buffering (to prevent damage to the product and test bench caused by rigid connection). After buffering, the rubber buffer cylinder 42 will offset the backward elastic force of the buffer spring 41, preventing it from impacting the test bench forward.

[0073] Among them, the buffer spring 41 is used to buffer the recoil force during the test of the test product (test piece). The buffer spring 41 has undergone strict spring force coefficient check, and the spring force can be accurately calculated under different compression conditions.

[0074] Meanwhile, the rubber limit block 6 is fixed to the base 1 with screws to prevent the buffer spring 41 from being compressed too much under special circumstances, such as excessive recoil force, thus limiting the maximum backward movement of the sliding seat 3 and preventing the buffer spring 41 from being compressed too much, causing it to fail, or causing the base 1 to be impacted by excessive compression. The rubber limit block 6 is used to limit the compression limit of the buffer spring 41 during the experiment.

[0075] Furthermore, a clamping assembly 5 is provided above the sliding seat 3. The clamping assembly 5 is used to fix the test product. The clamping assembly 5 includes a support seat 51 and a retaining ring 52. The support seat 51 is installed on both sides above the sliding seat 3 by fixing bolts. The retaining ring 52 is connected to the support seat 51 by fixing bolts. The retaining ring 52 and the support seat 51 are used to clamp the test product. The size of the clamping space between the retaining ring 52 and the support seat 51 can be adjusted according to the size of the test product. It can also be replaced and adjusted according to the shape of the test product (the clamping assembly 5 is replaceable).

[0076] Furthermore, the trigger firing device 8 includes a servo motor 81, a servo arm 82, and an external controller. The trigger firing device 8 is installed in the trigger frame of the test product (it can be clamped on the trigger frame). When firing, the external controller transmits a signal to the servo motor 81, and the servo motor 81 drives the servo arm 82 to swing, thereby causing the trigger of the test product to rotate, thus achieving the effect of pulling the trigger to fire.

[0077] Preferably, an acceleration sensor 71 and a laser displacement sensor 72 are respectively installed on the sliding base 3. The acceleration sensor 71 is fixed to the sliding base 3 with screws and is used to measure the acceleration values ​​in the X and Y directions during the test to calculate the impulse, recoil, and firing energy of the test product. During durability or life test, an acceleration threshold can be set, and when the threshold is exceeded, it is automatically determined whether the weapon has failed. The laser displacement sensor 72 is fixed to the sliding base 3 with screws and is used to measure the forward and backward displacement value of the sliding base 3 during the test to facilitate the calculation of values ​​such as impulse. During durability or life test, a displacement threshold can be set, and when the threshold is exceeded, it is automatically determined whether the weapon has failed.

[0078] The specific work process is as follows:

[0079] Test bench setup and preparation: Select a suitable test site and install the base 1 of the test bench on a flat and stable ground or test frame using fixing bolts. Select and install the corresponding fixture assembly 5 according to the model and size of the light weapon to be tested. Adjust the position and tightness of the fixture assembly 5 to ensure that the weapon is securely installed. Connect the acceleration sensor 71, laser displacement sensor 72, data acquisition system, and data processing unit. Perform sensor calibration and system debugging to ensure that all components are working properly. At the same time, first insert the guide shaft 3 into the rubber buffer cylinder 42 and the sliding seat 3 with the linear bearing 9 installed, and the buffer spring 41, and then insert the guide shaft 3 into the base 1 and fix it with a round nut. The test bench is equipped with a buffer spring 41 to prevent rigid connection from damaging the test product and the equipment. A rubber limit block 6 is provided to prevent the buffer spring 41 from being over-compressed and damaged under special circumstances.

[0080] Test process: The weapon to be tested is installed on the fixture assembly 5. Test parameters such as the number of shots and the firing interval are set in the data processing unit. The test bench is started and the trigger firing device 8 conducts the weapon firing test according to the preset parameters. During the firing process, the acceleration sensor 71 and the laser displacement sensor 72 collect acceleration, displacement and other data in real time and transmit them to the data acquisition system. The data processing unit then analyzes and processes the data. The weapon status evaluation system evaluates the weapon status in real time based on the processed data.

[0081] Results Analysis and Reporting: After the test, the data processing unit generates a detailed test report, including statistical data such as the change curves, average values, maximum values, and minimum values ​​of various parameters. Through in-depth analysis of the data, the lifespan, durability, and stability of the weapon are evaluated. If abnormalities are found in the weapon's condition, such as acceleration exceeding the standard range or excessive displacement fluctuations, the cause is further analyzed to determine whether the weapon is damaged or close to its lifespan limit, providing a scientific basis for the research and development improvement, quality control, and use and maintenance of the weapon.

[0082] Furthermore, an intelligent automatic firing device can be developed in conjunction with the trigger firing device 8. It can precisely control the firing frequency, firing frequency and firing mode according to the preset program, simulate various shooting scenarios of light weapons in actual combat, such as continuous firing and burst firing, and meet the diverse needs of life test and durability test. The device has high flexibility and can adapt to the firing requirements of different types of light weapons.

[0083] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A test bench for comprehensive performance testing of light weapons, characterized in that, include: Base (1), which is fixedly installed on the test bench; Guide shaft (2), which is fixedly connected to the base (1); A sliding seat (3) is slidably connected to a guide shaft (2); A buffer assembly (4) is mounted on the guide shaft (2) and distributed on both sides of the sliding seat (3); The clamping assembly (5) is distributed and installed on both sides of the upper end of the sliding seat (3) to clamp the specimen; A rubber limiting block (6) is fixedly installed on the base (1) and located on one side of the sliding seat (3); An acceleration sensor (71) is fixedly mounted on a sliding seat (3) to monitor the acceleration value of the sliding seat (3); A laser displacement sensor (72) is fixedly mounted on a sliding seat (3) to monitor the front and rear displacement values ​​of the sliding seat (3); After the test piece is launched, it generates recoil force and drives the sliding seat (3) to slide along the guide shaft (2) and is buffered by the buffer assembly (4) until it stops moving; A trigger firing device (8) is installed in the trigger frame of the test piece for pulling the trigger.

2. The test bench for integrated performance testing of light weapons according to claim 1, characterized in that The buffer component (4) includes: Buffer spring (41) and rubber buffer cylinder (42); The buffer spring (41) and the rubber buffer cylinder (42) are respectively sleeved on the guide shaft (2); The sliding seat (3) is located between the buffer spring (41) and the rubber buffer cylinder (42); After the test piece is launched, it generates a recoil force and drives the sliding seat (3) to move along the guide shaft (2) toward the buffer spring (41) and compress the buffer spring (41) until it rebounds; The buffer spring (41) rebounds and drives the sliding seat (3) to move along the guide shaft (2) toward the rubber buffer cylinder (42) and compress the rubber buffer cylinder (42) until it rebounds; The sliding seat (3) slides back and forth along the guide shaft (2) and is buffered by the buffer spring (41) and the rubber buffer cylinder (42) until it stops moving.

3. The light weapon comprehensive performance testing rig according to claim 2, characterized in that: The rubber limiting block (6) is located between the two sets of buffer springs (41); The sliding seat (3) moves along the guide shaft (2) to touch the rubber limiting block (6) to limit the compression limit of the buffer spring (41).

4. The light weapon comprehensive performance testing rig according to claim 1, characterized in that: The sliding seat (3) has a U-shaped structure with the opening facing downwards; Mounting holes (31) are provided on both sides of the sliding seat (3); The guide shaft (2) is inserted into the mounting hole (31) where the linear bearing (9) is installed.

5. The light weapon comprehensive performance testing rig according to claim 1, characterized in that: Guide holes (11) are provided on both sides of the base (1); The guide shaft (2) extends to the outside of the guide hole (11) at both ends; The outer periphery of both ends of the guide shaft (2) is formed with external threads; Tighten the nut on the guide shaft (2) located outside the guide hole (11) to fix the base (1) and the guide shaft (2).

6. The test bench for integrated testing of the performance of a small arms weapon according to claim 1, characterized in that, The clamp assembly (5) includes: Support base (51), which is fixedly mounted on sliding base (3); A retaining ring (52) is connected to a support base (51); The retaining ring (52) and the support base (51) form a clamping space for clamping the specimen.

7. The light weapon comprehensive performance testing rig according to claim 1, characterized in that: The base (1) has a strip-shaped groove (12) on its bottom plate; Bolts for connecting the base (1) and the test bench are installed in the strip-shaped slot (12).

8. The test bench for integrated testing of the performance of a small arms weapon according to claim 1, characterized in that, The trigger firing device (8) includes: Servo motor (81), servo arm (82), and external controller; The external controller transmits signals to the servo motor (81) to form a servo arm (82) that drives the trigger to rotate to achieve continuous firing.

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