Crash test dummy system and method

Abstract

The application discloses a dummy impact test system and method, which comprises a support frame structure and a control system, and further comprises a foot calibration module and a neck calibration module; the support frame structure comprises a neck support frame of a "┎" type and a foot support frame of a "┒" type which are connected to each other in a transverse direction and have an operation space in the middle, the neck calibration module and the foot calibration module are vertically installed on the inner sides of the respective support frames in a staggered manner; wherein the neck calibration module comprises a neck honeycomb aluminum fixing assembly and a neck impact hammer assembly; the foot calibration module comprises a workbench assembly, an adjusting assembly and a foot impact hammer assembly.

Description

Technical Field

[0001] This invention relates to the field of dummy detection and calibration technology, specifically to a dummy impact testing system and method. Background Technology

[0002] In the field of automotive safety performance testing, both domestically and internationally, human-shaped crash test dummies are used as testing tools for human safety, ensuring the safety of personnel. Various sensors integrated into different parts of the dummy obtain corresponding response parameters. These data reflect the degree of injury to the human body during a car crash, thereby assessing the vehicle's safety performance and providing researchers with a reference for improving vehicle body structure and optimizing restraint systems. To obtain accurate and reliable data from car crash tests, the dummy must possess good biomimicry. To verify the biomimicry of the dummy, calibration and testing tests are often required. Current dummy foot and neck calibration equipment has low integration, limited functionality, and can only be used for the calibration of a specific type of dummy's feet and neck, failing to meet current needs for dummy foot and neck calibration.

[0003] Therefore, there is a need to provide a dummy impact testing system and method that can simultaneously meet the calibration and testing requirements of the dummy's feet and neck. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, the present invention provides a dummy impact testing system and, more particularly, a corresponding dummy impact testing method.

[0005] First, the present invention provides a dummy impact testing system, including a support frame structure and a control system, and further including a foot calibration module and a neck calibration module; the support frame structure includes a "┎"-shaped neck support frame and a "┒"-shaped foot support frame that are horizontally connected to each other and have an operating space in the middle, and the neck calibration module and the foot calibration module are offset and vertically installed on the inner side of their respective support frames; The neck calibration module includes a neck honeycomb aluminum fixing assembly and a neck impact hammer assembly mounted on a neck support frame. The neck impact hammer assembly includes a dummy neck test assembly, a neck swing arm, a neck drive arm, and a neck drive structure. The neck drive structure drives the neck drive arm, and the neck drive arm drives the neck swing arm to move together, so that the dummy neck test assembly mounted at the lower end of the neck swing arm accurately impacts the neck honeycomb aluminum fixing assembly at a preset angle and impact speed. The foot calibration module includes: The worktable assembly includes a dummy foot test assembly, a fixing structure for fixing the dummy foot test assembly, a sliding structure for driving the fixing structure to slide left and right, and an adjustment table for providing adjustable foot support for the dummy foot test assembly. The adjustment assembly includes an upper and lower sliding table adjustment assembly for vertical adjustment of the worktable assembly, a lead screw module assembly for driving the upper and lower sliding table adjustment assembly to slide vertically on the foot support frame, and an internal adjustment component for vertical adjustment of the adjustment table; and The foot impact hammer assembly includes an impact hammer, a foot swing arm, a foot drive arm, and a drive structure. The drive structure drives the foot drive arm, and the drive arm drives the foot swing arm to move together, so that the impact hammer mounted on the lower end of the foot swing arm accurately impacts the foot of the human foot test assembly at a preset angle and impact speed.

[0006] The dummy neck test assembly is equipped with an angle sensing structure for acquiring rotation angle and a neck force sensor for acquiring head and neck linkage torque. The lower end of the neck swing arm is equipped with a neck acceleration sensor for acquiring acceleration. During the test, the angle sensing structure, neck acceleration sensor and neck force sensor acquire corresponding data and transmit them to the control system for storage. The foot drive arm is equipped with an inclination sensor for collecting its rotation angle, the impact hammer is equipped with an acceleration sensor for collecting its impact acceleration, and the dummy foot test assembly is equipped with a force sensor for collecting the impact force; the inclination sensor, acceleration sensor and force sensor collect the corresponding data and transmit them to the control system for storage.

[0007] The neck drive structure includes a second servo motor and a second planetary reducer fixed to a neck impact hammer mounting base via a neck reducer mounting base. The neck impact hammer mounting base is fixedly mounted on the neck support frame via a neck impact hammer assembly mounting plate. A neck rotating shaft is located at the center of the neck impact hammer mounting base, and one end of the neck rotating shaft is connected to the output end of the second planetary reducer. The power provided by the second servo motor drives the neck rotating shaft to rotate via the second planetary reducer. The rotation of the neck rotating shaft drives the rotation of the neck drive arm fixedly connected to it. The neck drive arm drives the neck swing arm to move together, causing the dummy neck test assembly mounted at the lower end of the neck swing arm to accurately impact the neck honeycomb aluminum mounting assembly at a preset angle and impact speed.

[0008] The dummy neck test assembly is fixed to the lower part of the neck swing arm by a neck quick-release block, and the handle-shaped quick clamp clamps the neck quick-release block. When the neck shaft drives the neck drive arm to rotate, the neck electromagnet fixed on the neck drive arm generates a magnetic attraction to the neck swing arm, thereby causing the neck swing arm to rotate together with the dummy neck test assembly along with the neck drive arm.

[0009] The fixing structure includes a detachable foot fixing seat, and the sliding structure includes left and right sliding blocks, a first guide rail symmetrically arranged on the worktable panel to guide the left and right sliding blocks, a positioning rack arranged on the worktable panel, and a buckle installed on the left and right sliding blocks and cooperating with the positioning rack to lock the left and right sliding blocks.

[0010] It also includes an auxiliary locking structure, which includes an auxiliary locking block and a handle.

[0011] The internal adjustment component includes an adjustment module fixedly connected to the adjustment platform, and a stepper motor that drives the adjustment module to precisely adjust the adjustment platform up and down.

[0012] The upper and lower sliding table adjustment assembly includes a first sliding table fixing plate located below the worktable panel, a second sliding table fixing plate vertically fixed to the first sliding table fixing plate, and a sliding seat plate connected to the lead screw module assembly. The sliding seat plate drives the upper and lower sliding table adjustment assembly to slide up and down in the vertical direction under the action of the lead screw module assembly.

[0013] The lead screw module assembly includes a main frame fixed to the foot support frame, a lead screw module fixed to the main frame by a lead screw fixing seat, a lead screw sleeve fixing seat sleeved on the lead screw module, and a DC motor and a worm gear reducer mounted on the main frame; wherein, the DC motor transmits power to the lead screw module through the worm gear reducer, and drives the sliding seat plate connected to it through the lead screw sleeve fixing seat to drive the upper and lower sliding table adjustment assembly to slide up and down in the vertical direction.

[0014] It also includes an upper and lower guide structure, which includes a second guide rail symmetrically arranged on the main frame and four guide sliders that cooperate with the second guide rail to guide the sliding seat plate.

[0015] The foot impact hammer assembly includes a foot impact assembly fixing plate fixed to the foot support frame, a foot impact hammer fixing seat fixed to the foot impact assembly fixing plate, and a foot rotating shaft disposed between the foot impact hammer fixing seats and connected to the drive structure; the drive structure includes a planetary reducer fixed to the foot impact hammer fixing seat via a foot reducer fixing seat and a servo motor, the output end of the planetary reducer being connected to the foot rotating shaft; wherein, the foot drive arm is rotated by the foot rotating shaft via a built-in key.

[0016] The foot impact hammer assembly also includes an intermediate connecting structure; the intermediate connecting structure includes a magnetic fixing plate fixed below the foot drive arm, a foot electromagnet on the magnetic fixing plate, and a magnetic block on the impact hammer; when the foot drive arm rotates, the foot swing arm and the impact hammer are simultaneously driven to rotate under the magnetic attraction of the foot electromagnet to the magnetic block.

[0017] Secondly, the present invention also provides a dummy impact testing method, including... The steps for impact testing on the dummy's feet are as follows: The dummy foot test assembly is fixed by the fixed structure and adjusted left and right by the sliding structure to meet the placement requirements of different dummy foot test assemblies that can be placed on the adjustment platform; The control system allows the upper and lower slide adjustment assembly and the lead screw module assembly to adjust the worktable assembly up and down, and the internal adjustment component to adjust the adjustment platform, so that the dummy foot test assembly meets the precise position requirements of the impact hammer impacting the foot. The control system controls the drive structure to rotate the foot drive arm at a set angle and rotation speed. The foot drive arm drives the foot swing arm to rotate together, so that the impact hammer impacts the foot of the dummy foot test assembly at a preset impact speed and impact angle. Among them, the tilt sensor, acceleration sensor and force sensor collect the corresponding data and transmit them to the control system for storage; The neck impact test on the dummy is conducted as follows: The dummy's neck test assembly is secured to the neck swing arm via a neck quick-release block, and the neck quick-release block is clamped using a handle-type quick clamp. The control system controls the servo motor 2 and planetary reducer 2 to rotate the neck drive arm through the neck shaft at a set angle and a set rotation speed. The neck electromagnet fixed on the neck drive arm causes the neck swing arm to drive the dummy neck test assembly to rotate together at a set angle through magnetic attraction, thereby impacting the neck honeycomb aluminum fixing assembly. Among them, the angle sensing structure, the neck acceleration sensor, and the neck force sensor collect relevant data and transmit them to the control system for storage.

[0018] The technical solution of this invention has the following advantages: 1. The dummy impact testing system provided by this invention is not only more integrated and aesthetically pleasing, but also easy to operate. It can also achieve automated operation, reduce human intervention, and ensure the reliability of the experiment.

[0019] 2. The dummy impact testing system provided by this invention can achieve automated operation, reduce human intervention and ensure the reliability of the experiment. The foot test of the foot calibration module adopts an electronic control adjustment design, which avoids inaccurate test data caused by human manual operation errors. At the same time, the foot impact test of different series of dummies can be carried out by replacing the foot fixation seat. The quick clamping structure design of the neck calibration module makes the operation more convenient, thereby improving the test efficiency. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the dummy impact testing system described in this invention; Figure 2 This is a schematic diagram of the foot impact test structure described in this invention; Figure 3 This is a schematic diagram of the worktable assembly - upper and lower sliding stage adjustment assembly described in this invention; Figure 4 This is a schematic diagram of the lead screw module assembly described in this invention; Figure 5 This is a schematic diagram of the foot impact hammer assembly described in this invention; Figure 6 for Figure 5 Enlarged view of part A in the diagram; Figure 7 This is a schematic diagram of the neck impact test structure described in this invention; Figure 8 This is a schematic diagram of the neck honeycomb aluminum fixing assembly described in this invention; Figure 9 This is a schematic diagram of the neck impact hammer assembly described in this invention; Figure 10 for Figure 9 Schematic diagram of partial enlargement in B; Figure 11This is a partial schematic diagram of the neck impact hammer assembly described in this invention.

[0022] Reference numerals: 1-Support frame structure, 2-Foot calibration module, 3-Neck calibration module, 1.1-Neck support frame, 1.2-Foot support frame, 2.1-Workbench assembly, 2.2-Upper and lower sliding table adjustment assembly, 2.3-Screw module assembly, 2.4-Foot impact hammer assembly, 2.1.1-Workbench panel, 2.1.2-First guide rail, 2.1.3-Left and right sliding blocks, 2.1.4-Locking block, 2.1.5-Foot fixing seat, 2.1.6-Snap fastener, 2.1.7-Positioning rack, 2.1.8-Adjustment table, 2.1.9-Handle, 2.1.10-Dummy foot testing assembly 2.2.1 - Slide Table Fixing Plate 1; 2.2.2 - Slide Table Fixing Plate 2; 2.2.3 - Sliding Seat Plate; 2.2.4 - Stepper Motor; 2.2.5 - Adjustment Module; 2.2.6 - Adjustment Module Fixing Seat; 2.3.1 - DC Motor; 2.3.2 - Worm Gear Reducer; 2.3.3 - Reducer Fixing Seat; 2.3.4 - Second Guide Rail; 2.3.5 - Main Frame; 2.3.6 - Lead Screw Module; 2.3.7 - Lead Screw Fixing Seat; 2.3.8 - Lead Screw Sleeve Fixing Seat; 2.4.1 - Servo Motor 1; 2.4.2 - Planetary Reducer 1; 2.4.3 - Foot Reducer Fixing Seat; 2. 4.4 - Foot impact hammer mounting base; 2.4.5 - Foot impact assembly mounting plate; 2.4.6 - Foot pivot; 2.4.7 - Foot drive arm; 2.4.8 - Foot swing arm; 2.4.9 - Impact hammer; 2.4.10 - Foot electromagnet; 2.4.11 - Magnetic block; 2.4.12 - Magnetic mounting plate; 2.4.13 - Tilt sensor; 2.4.14 - Accelerometer; 3.1 - Neck honeycomb aluminum mounting assembly; 3.2 - Neck impact hammer assembly; 3.1.1 - Honeycomb aluminum mounting base; 3.1.2 - Honeycomb aluminum mounting plate; 3.1.3 - Neck honeycomb aluminum assembly mounting plate; 3.2.1 -Servo Motor II, 3.2.2-Planetary Gearbox II, 3.2.3-Neck Gearbox Mounting Mount, 3.2.4-Neck Impact Hammer Mounting Mount, 3.2.5-Neck Impact Hammer Assembly Mounting Plate, 3.2.6-Neck Shaft, 3.2.7-Neck Drive Arm, 3.2.8-Neck Swing Arm, 3.2.9-Neck Electromagnet, 3.2.10-Neck Quick-Mount Block, 3.2.11-Handle-Type Quick-Clamping Pliers, 3.2.12-Honeycomb Aluminum Impact Block, 3.2.15-Neck Accelerometer, 3.2.16-Neck Tilt Sensor, 3.2.17-Dummy Neck Test Assembly; 3.2.18-Pin. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following content is merely illustrative and explanatory of the concept of the present invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the inventive concept or exceed the scope defined by the claims, all of which should fall within the protection scope of the present invention. Unless otherwise specified, the experimental reagents and materials used in the following embodiments are commercially available. Example 1

[0024] like Figure 1 As shown, this embodiment provides a dummy impact testing system, including a support frame structure 1 and a control system, and also includes a foot calibration module 2 and a neck calibration module 3; the support frame structure 1 includes a "┎"-shaped neck support frame 1.1 and a "┒"-shaped foot support frame 1.2 that are horizontally connected to each other and have an operating space in the middle, and the neck calibration module 3 and the foot calibration module 2 are offset and vertically installed on the inner side of their respective support frames.

[0025] Specifically, such as Figure 2-6 As shown, the foot calibration module 2 includes: The workbench assembly 2.1 includes a dummy foot test assembly 2.1.10, a fixing structure for fixing the dummy foot test assembly 2.1.10, a sliding structure for driving the fixing structure to slide left and right, and an adjustment table 2.1.8 for providing adjustable foot support for the dummy foot test assembly 2.1.10; The adjustment assembly includes an upper and lower sliding table adjustment assembly 2.2 for vertical adjustment of the worktable assembly 2.1, a lead screw module assembly 2.3 for driving the upper and lower sliding table adjustment assembly 2.2 to slide vertically on the foot support frame 1.2, and an internal adjustment component for vertical adjustment of the adjustment table 2.1.8; and The foot impact hammer assembly 2.4 includes an impact hammer 2.4.9, a foot swing arm 2.4.8, a foot drive arm 2.4.7, and a drive structure. The drive structure drives the foot drive arm 2.4.7, and the drive arm drives the foot swing arm 2.4.8 to move together, so that the impact hammer 2.4.9, which is mounted on the lower end of the foot swing arm 2.4.8, accurately impacts the foot of the human foot test assembly at a preset angle and impact speed. The foot drive arm 2.4.7 is equipped with an inclination sensor 2.4.13 for acquiring its rotation angle, the impact hammer 2.4.9 is equipped with an acceleration sensor 2.4.14 for acquiring its impact acceleration, and the dummy foot test assembly 2.1.10 is equipped with a force sensor for acquiring the impact force.

[0026] In this embodiment, the control system can edit or set the parameters of the corresponding calibration test through software, and issue corresponding instructions to the drive structure to perform the corresponding calibration test. The data collected by each sensor is analyzed and calculated by the software, and finally presented in the form of a report.

[0027] The fixing structure includes a detachable foot fixing seat 2.1.5, and the sliding structure includes left and right sliding blocks 2.1.3, a first guide rail 2.1.2 symmetrically arranged on the worktable panel 2.1.1 to guide the left and right sliding blocks 2.1.3, a positioning rack 2.1.7 arranged on the worktable panel 2.1.1, and a buckle 2.1.6 installed on the left and right sliding blocks 2.1.3 and cooperating with the positioning rack 2.1.7 to lock the left and right sliding blocks 2.1.3.

[0028] It also includes an auxiliary locking structure, which includes an auxiliary locking block 2.1.4 and a handle 2.1.9; wherein, the auxiliary locking block 2.1.4 is fixed to the left and right sliding blocks 2.1.3 with screws, and the handle 2.1.9 and the auxiliary locking block 2.1.4 are threadedly connected. When the left and right sliding blocks 2.1.3 slide to the appropriate position, the handle 2.1.9 is rotated so that the rod of the handle 2.1.9 presses against the first guide rail 2.1.2 and locks it.

[0029] The internal adjustment assembly includes an adjustment module 2.2.5 fixedly connected to the adjustment platform 2.1.8, and a stepper motor 2.2.4 that drives the adjustment module 2.2.5 to precisely adjust the adjustment platform 2.1.8 up and down.

[0030] like Figure 3 As shown, the upper and lower sliding table adjustment assembly 2.2 includes a sliding table fixing plate 2.2.1 located below the worktable panel 2.1.1, a sliding table fixing plate 2.2.2 vertically fixed to the sliding table fixing plate 2.2.1, and a sliding seat plate 2.2.3 connected to the lead screw module assembly 2.3. The sliding seat plate 2.2.3 drives the upper and lower sliding table adjustment assembly 2.2 to slide up and down in the vertical direction under the action of the lead screw module assembly 2.3.

[0031] like Figure 4As shown, the lead screw module assembly 2.3 includes a main frame 2.3.5 fixed on the foot support frame 1.2, a lead screw module 2.3.6 fixed on the main frame 2.3.5 via a lead screw fixing seat 2.3.7, a lead screw sleeve fixing seat 2.3.8 sleeved on the lead screw module 2.3.6, and a DC motor 2.3.1 and a worm gear reducer 2.3.2 mounted on the main frame 2.3.5; wherein, the DC motor 2.3.1 transmits power to the lead screw module 2.3.6 via the worm gear reducer 2.3.2, and drives the sliding seat plate 2.2.3 connected to it via the lead screw sleeve fixing seat 2.3.8 to drive the upper and lower sliding table adjustment assembly 2.2 to slide up and down in the vertical direction.

[0032] It also includes an upper and lower guide structure, which includes a second guide rail 2.3.4 symmetrically arranged on the main frame 2.3.5 and four guide sliders that cooperate with the second guide rail 2.3.4 to guide the sliding seat plate 2.2.3.

[0033] like Figure 5 and 6 As shown, the foot impact hammer assembly 2.4 includes a foot impact assembly fixing plate 2.4.5 fixed on the foot support frame 1.2, a foot impact hammer fixing seat 2.4.4 fixed to the foot impact assembly fixing plate 2.4.5, and a foot rotating shaft 2.4.6 disposed between the foot impact hammer fixing seats 2.4.4 and connected to the drive structure; the drive structure includes a planetary reducer 2.4.2 and a servo motor 2.4.1 fixed on the foot impact hammer fixing seat 2.4.4 via a foot reducer fixing seat 2.4.3, the output end of the planetary reducer 2.4.2 is connected to the foot rotating shaft 2.4.6; wherein, the foot drive arm 2.4.7 is rotated by the foot rotating shaft 2.4.6 via a built-in key.

[0034] The foot impact hammer assembly 2.4 also includes an intermediate connecting structure; the intermediate connecting structure includes a magnetic fixing plate 2.4.12 fixed below the foot drive arm 2.4.7, a foot electromagnet 2.4.10 disposed on the magnetic fixing plate 2.4.12, and a magnetic block 2.4.11 disposed on the impact hammer 2.4.9; when the foot drive arm 2.4.7 rotates, the foot swing arm 2.4.8 and the impact hammer 2.4.9 are simultaneously driven to rotate under the magnetic attraction of the foot electromagnet 2.4.10 to the magnetic block 2.4.11.

[0035] Specifically, the dummy impact testing system includes a foot calibration module 2, a foot support frame 1.2, and a control system. The foot calibration module 2 includes a worktable assembly 2.1, an upper and lower sliding table adjustment assembly 2.2, a lead screw module assembly 2.3, and a foot impact hammer assembly 2.4. The worktable assembly 2.1 is fixed on the upper and lower sliding table adjustment assembly 2.2. The height of the worktable assembly 2.1 is adjusted by the lead screw module assembly 2.3. The lead screw module assembly 2.3 and the foot impact hammer assembly 2.4 are respectively fixed on the foot support frame 1.2.

[0036] Furthermore, the dummy foot test assembly 2.1.10 is fixed on the foot mounting base 2.1.5 of the worktable assembly 2.1. It should be noted that different foot mounting bases 2.1.5 can be replaced to perform calibration tests on the feet of different series of dummies. The foot fixing seat 2.1.5 is fixed on the left and right sliding blocks 2.1.3. The left and right sliding blocks 2.1.3 are fixed to the first guide rail 2.1.2, which is fixed on the worktable panel 2.1.1 and symmetrically arranged, to realize the adjustment of the dummy foot test assembly 2.1.10 in the left and right directions. At the same time, the left and right sliding blocks 2.1.3 are locked by the positioning rack 2.1.7 fixed on the worktable panel 2.1.1 and the buckle 2.1.6 mounted on the left and right sliding blocks 2.1.3 to prevent the dummy foot test assembly 2.1.10 from shifting during the impact. The locking block 2.1.4 is used to assist in locking the left and right sliding blocks 2.1.3. The worktable panel 2.1.1 is fixed on the upper and lower sliding table adjustment assembly 2.2. The adjustment table 2.1.8 is fixed to the adjustment module 2.2.5 in the upper and lower sliding table adjustment assembly 2.2, which can realize the precise adjustment of the foot impact position.

[0037] The adjustment module 2.2.5 in the upper and lower slide adjustment assembly 2.2 is fixed to the slide fixed plate 2.2.2 via the adjustment module fixing seat 2.2.6. The power output by the stepper motor 2.2.4 is used to achieve precise adjustment of the height of the adjustment platform 2.1.8 through the adjustment module 2.2.5 to meet the requirements of precise calibration testing of different parts of the foot. The slide fixed plate 2.2.1 is fixed on the slide fixed plate 2.2.2. The slide fixed plate 2.2.2 and the sliding seat plate 2.2.3 are fixedly connected. The sliding seat plate 2.2.3 and the second guide rail 2.3.4 and the lead screw sleeve fixing seat 2.3.8 in the lead screw module assembly 2.3 are fixedly connected.

[0038] The main frame 2.3.5 of the lead screw module assembly 2.3 is fixed on the foot support frame 1.2. Above the main frame 2.3.5 are a DC motor 2.3.1 and a worm gear reducer 2.3.2. The power provided by the DC motor 2.3.1 is transmitted to the lead screw module 2.3.6 through the worm gear reducer 2.3.2, and the rotational motion of the lead screw is converted into the up-and-down sliding motion of the upper and lower sliding table adjustment assembly 2.2 through the lead screw sleeve fixing seat 2.3.8 fixed on the sliding seat plate 2.2.3, so as to realize the up-and-down height adjustment of the dummy foot test assembly 2.1.10. The worm gear reducer 2.3.2 is fixed to the main frame 2.3.5 and the foot support frame 1.2 through the reducer fixing seat 2.3.3, and the lead screw module 2.3.6 is fixed to the main frame 2.3.5 through the lead screw fixing seat 2.3.7.

[0039] The servo motor 2.4.1 and planetary reducer 2.4.2 in the foot impact hammer assembly 2.4 are connected and fixed to the foot impact hammer mounting base 2.4.4 via the foot reducer mounting base 2.4.3. The foot impact hammer mounting base 2.4.4 is fixed to the foot support frame 1.2 via the foot impact assembly mounting plate 2.4.5. The foot rotating shaft 2.4.6 is connected to the output end of the planetary reducer 2.4.2. The foot drive arm 2.4.7 is rotated by the foot rotating shaft 2.4.6 via a built-in key. The impact hammer 2.4.9 is fixed to the lower end of the foot swing arm 2.4.8. The magnetic block 2.4.11 is fixed to the impact hammer 2.4.9. The magnetic mounting plate 2.4.12 is fixed to the foot drive arm 2.4.7. Below, the foot electromagnet 2.4.10 is fixed on the magnetic fixing plate 2.4.10. The power provided by the servo motor 2.4.1 drives the rotation of the foot drive arm 2.4.7 through the planetary reducer 2.4.2 and the foot shaft 2.4.6. Due to the magnetic attraction of the foot electromagnet 2.4.10 to the magnetic block 2.4.11, the foot swing arm 2.4.8 is also driven to rotate. The tilt sensor 2.4.13 fixed on the foot drive arm 2.4.7 is used to collect the rotation angle of the foot drive arm 2.4.7. The acceleration sensor 2.4.14 is fixed on the impact hammer 2.4.9 and is used to collect the acceleration of the impact hammer 2.4.9 impacting the dummy foot test assembly 2.1.10 during the calibration test.

[0040] Specifically, such as Figure 7-10As shown, the neck calibration module 3 includes a neck honeycomb aluminum fixing assembly 3.1 and a neck impact hammer assembly 3.2 mounted on the neck support frame 1.1. The neck impact hammer assembly 3.2 includes a dummy neck test assembly 3.2.17, a neck swing arm 3.2.8, a neck drive arm 3.2.7, and a neck drive structure. The neck drive structure drives the neck drive arm 3.2.7, and the neck drive arm 3.2.7 drives the neck swing arm 3.2.8 to move together, so that the dummy neck test assembly 3.2.17 mounted on the lower end of the neck swing arm 3.2.8 accurately impacts the neck honeycomb aluminum fixing assembly 3.1 at a preset angle and impact speed.

[0041] The dummy neck test assembly 3.2.17 is equipped with an angle sensing structure for acquiring rotation angles and a neck force sensor for acquiring linkage torque. The lower end of the neck swing arm 3.2.8 is equipped with a neck acceleration sensor 3.2.15 for acquiring acceleration. During testing, the angle sensing structure, neck acceleration sensor 3.2.15, and neck force sensor acquire corresponding data and transmit them to the control system for storage. The angle sensing structure includes two neck angle sensors; in a preferred embodiment, one is located at the neck, and the other can be located at the head.

[0042] The neck drive structure includes a second servo motor 3.2.1 and a second planetary reducer 3.2.2 fixed to a second neck impact hammer mounting base 3.2.3 on a third neck impact hammer mounting base 3.2.4. The second neck impact hammer mounting base 3.2.4 is fixedly mounted on the neck support frame 1.1 via a second neck impact hammer assembly mounting plate 3.2.5. A neck rotating shaft 3.2.6 is located at the middle position of the second neck impact hammer mounting base 3.2.4, and one end of the neck rotating shaft 3.2.6 is connected to the second planetary reducer 3.2. The output end of .2 is connected; the power provided by the servo motor 3.2.1 drives the neck shaft 3.2.6 to rotate through the planetary reducer 3.2.2. The rotation of the neck shaft 3.2.6 drives the neck drive arm 3.2.7 fixedly connected to it to rotate. The neck drive arm 3.2.7 drives the neck swing arm 3.2.8 to move together, so that the dummy neck test assembly 3.2.17 installed at the lower end of the neck swing arm 3.2.8 accurately impacts the neck honeycomb aluminum fixing assembly 3.1 at a preset angle and impact speed.

[0043] The dummy neck test assembly 3.2.17 is fixed below the neck swing arm 3.2.8 via the neck quick-release block 3.2.10, and the handle-type quick clamp 3.2.11 clamps the neck quick-release block 3.2.10; specifically as follows... Figure 11As shown, the dummy neck test assembly 3.2.17 is fixed to the neck quick-release block 3.2.10 with screws. Then, the neck quick-release block 3.2.10 is fastened to the pin 3.2.18 below the neck swing arm 3.2.8, and simultaneously pressed down using the handle-type quick clamp 3.2.11. When the neck pivot 3.2.6 drives the neck drive arm 3.2.7 to rotate, the neck electromagnet 3.2.9 fixed to the neck drive arm 3.2.7 generates a magnetic attraction to the neck swing arm 3.2.8, thereby causing the neck swing arm 3.2.8, along with the dummy neck test assembly 3.2.17, to rotate together with the neck drive arm 3.2.7.

[0044] like Figure 8 As shown, the neck honeycomb aluminum fixing assembly 3.1 includes a honeycomb aluminum fixing seat 3.1.1 fixed to the neck support frame 1.1 via a neck honeycomb aluminum assembly fixing plate 3.1.3, and a honeycomb aluminum fixing plate 3.1.2 fixed to the honeycomb aluminum fixing seat 3.1.1. Preferably, a honeycomb aluminum impact block 3.2.12 is fixed to the neck drive arm 3.2.8; during a collision, the honeycomb aluminum impact block 3.2.12 directly impacts the honeycomb aluminum fixing plate 3.1.2.

[0045] like Figure 9 and 10 As shown, the servo motor 3.2.1 and planetary reducer 3.2.2 in the neck impact hammer assembly 3.2 are connected and fixed to the neck impact hammer mounting base 3.2.4 via the neck reducer mounting base 3.2.3. The neck impact hammer mounting base 3.2.4 is fixed to the neck support structure 1.2 via the neck impact hammer assembly mounting plate 3.2.5. The power provided by the servo motor 3.2.1 drives the neck shaft 3.2.6 to rotate via the planetary reducer 3.2.2. The rotation of the neck shaft 3.2.6 drives the rotation of the neck drive arm 3.2.7. The neck electromagnet 3.2.9 fixed on the neck drive arm 3.2.7 generates a magnetic attraction to the neck swing arm 3.2.8, thereby causing the neck swing arm 3.2.8 to rotate. 8. Rotates together with the neck drive arm 3.2.7; the dummy neck test assembly 3.2.17 is mounted on the neck quick-release block 3.2.10, which is fixed below the neck swing arm 3.2.8. The handle-type quick clamp 3.2.11 fixed on the neck swing arm 3.2.8 applies a clamping force to the neck quick-release block 3.2.10 during calibration testing. The neck tilt sensor 3.2.16 is fixed on the neck drive arm 3.2.8 to collect the rotation angle of the neck swing arm 3.2.8 during calibration testing. The acceleration sensor 3.2.15 fixed on the neck drive arm 3.2.8 is used to collect the acceleration of the dummy neck test assembly 3.2.17 during calibration testing. Example 2

[0046] This embodiment provides a dummy impact testing method, including: The method for testing the impact of a dummy foot includes the following steps: The dummy foot test assembly 2.1.10 is fixed by the fixed structure and adjusted left and right by the sliding structure to meet the placement requirements of different dummy foot test assemblies 2.1.10 to be placed on the adjustment platform 2.1.8; The control system allows the upper and lower slide adjustment assembly 2.2 and the lead screw module assembly 2.3 to adjust the worktable assembly 2.1 up and down, and allows the internal adjustment component to adjust the adjustment platform 2.1.8, so that the dummy foot test assembly 2.1.10 meets the precise position requirements of the impact hammer 2.4.9 impacting the foot; The control system controls the drive structure to rotate the foot drive arm 2.4.7 at a set angle and rotation speed. The foot drive arm 2.4.7 drives the foot swing arm 2.4.8 to rotate together, so that the impact hammer 2.4.9 impacts the foot of the dummy foot test assembly 2.1.10 at a preset impact speed and impact angle. Among them, the tilt sensor 2.4.13, the acceleration sensor 2.4.14, and the force sensor collect the corresponding data and transmit them to the control system for storage.

[0047] Specifically, during the calibration test, the control system issues a command, energizing the foot electromagnet 2.4.10 to magnetically attract the magnetic block on the impact hammer 2.4.9. The foot drive arm 2.4.7 rotates through the magnetic attraction, causing the foot swing arm 2.4.8 and the impact hammer to rotate and rise to a preset angle. The control system issues another command, de-energizing the foot electromagnet 2.4.10, eliminating the magnetic attraction. The foot drive arm 2.4.7 remains stationary, while the foot swing arm 2.4.8 rotates and falls under the influence of gravity, causing the impact hammer 2.4.9 to impact the foot of the foot test assembly at a preset impact speed. After the test, the drive structure, under the control system, causes the foot drive arm 2.4.7 to rotate back to its natural hanging state at the set speed.

[0048] Specifically, the foot impact test process is as follows: The dummy foot testing assembly 2.1.10 and the corresponding foot fixing seat 2.1.5 are fixed and installed on the left and right sliding blocks 2.1.3 of the worktable assembly 2.1. The position of the left and right sliding blocks 2.1.3 on the first guide rail 2.1.2 is adjusted to fix the feet of different dummy foot testing assemblies 2.1.10 onto the adjusting table 2.1.8 for impact testing. The dummy foot testing assembly 2.1.10 is fixed by the buckle 2.1.6, the positioning rack 2.1.7, and the locking block 2.1.4. The DC motor 2.3.1 is controlled by the software program to adjust the vertical height of the worktable assembly 2.1, the upper and lower sliding table adjusting assembly 2.2, and the dummy foot testing assembly 2.1.10 according to the set speed. Adjust the approximate position of the impact hammer 2.4.9 impacting the dummy's foot. The software program controls the stepper motor 2.2.4 to adjust the height of the adjusting platform 2.1.8 via the adjusting module 2.2.5, ensuring the impact hammer 2.4.9 strikes the dummy's foot precisely. The software program also controls the servo motor 2.4.1 to rotate the foot drive arm 2.4.7 at a set angle and speed. The magnetic attraction of the foot electromagnet 2.4.10 fixed to the foot drive arm 2.4.7 causes the foot swing arm 2.4.8 and the foot drive arm 2.4.7 to rotate together at a set angle, achieving the required impact speed for the impact hammer 2.4.9 when impacting the upper, lower, and lower parts of the dummy's foot (wearing shoes). During the experiment, the tilt sensor 2.4.13, the acceleration sensor 2.4.14, and the force sensor mounted on the dummy foot test assembly 2.1.10 respectively collected the acceleration of the impact hammer 2.4.9 and the ankle force of the dummy during the impact. The collected data was then transmitted to a computer for storage. The computer can summarize and display the collected data, which facilitates the analysis of the changes in force and torque of the dummy foot test assembly 2.1.10 and acceleration of the impact hammer 2.4.9 during the foot impact test.

[0049] The neck impact test on the dummy is conducted as follows: The dummy neck test assembly 3.2.17 is fixed to the neck swing arm 3.2.8 via the neck quick-release block 3.2.10, and the neck quick-release block 3.2.10 is clamped using the handle-type quick clamp 3.2.11. The control system controls the servo motor 3.2.1 and planetary reducer 3.2.2 to rotate the neck drive arm 3.2.7 via the neck shaft 3.2.6 according to the set angle and rotation speed. The neck electromagnet 3.2.9 fixed on the neck drive arm 3.2.7 causes the neck swing arm 3.2.8 to rotate the dummy neck test assembly 3.2.17 together with the neck through magnetic attraction, thereby impacting the neck honeycomb aluminum fixing assembly 3.1. Among them, the angle sensing structure, the neck acceleration sensor 3.2.15, and the neck force sensor collect relevant data and transmit them to the control system for storage.

[0050] Specifically, during calibration testing, the control system issues a command to energize the neck electromagnet 3.2.9 fixed on the neck drive arm 3.2.7, which generates a magnetic attraction to the neck swing arm 3.2.8. This causes the neck drive arm 3.2.7 to rotate and rise the neck swing arm 3.2.8 and the dummy neck test assembly 3.2.17 fixed below the neck swing arm 3.2.8 to a set angle. The control system then issues a command to de-energize the neck electromagnet 3.2.9, eliminating the magnetic attraction. The neck drive arm 3.2.7 remains stationary, while the neck swing arm 3.2.8 and the neck test assembly 3.2.17 fixed below the neck swing arm 3.2.8 rotate and fall under the influence of gravity. This causes the dummy neck test assembly 3.2.17 fixed below the neck swing arm 3.2.8 to impact the neck honeycomb aluminum fixing assembly 3.1 at a preset impact speed.

[0051] The neck impact test procedure is described in detail below: The dummy neck test assembly 3.2.17 is fixed to the neck swing arm 3.2.8 via the neck quick-release block 3.2.10, while the handle-type quick clamp 3.2.11 applies a clamping force to the neck quick-release block 3.2.10. The control system controls the servo motor 3.2.1 to rotate the neck drive arm 3.2.7 according to the set angle and rotation speed. Due to the magnetic attraction of the neck electromagnet 3.2.9 fixed to the neck drive arm 3.2.7, the neck swing arm 3.2.8 and the neck drive arm 3.2.7 will rotate together by the set angle to meet the deceleration-time requirements of the neck swing arm 3.2.8 during neck calibration. During the experiment, the neck angle sensor, acceleration sensor 3.2.15, and force sensor mounted on the dummy neck test assembly 3.2.17 respectively collected the dummy's "D" plane rotation angle, the acceleration of the dummy neck test assembly 3.2.17, and the dummy head and neck connection torque during the neck calibration test. The collected data was then transmitted to a computer for storage. The computer can summarize and display the collected data, facilitating the analysis of changes in the dummy's "D" plane rotation angle, the acceleration of the dummy neck test assembly 3.2.17, and the dummy head and neck connection torque during the neck calibration test.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A dummy impact testing system, comprising a supporting frame structure (1) and a control system, characterized in that, It also includes a foot calibration module (2) and a neck calibration module (3); the support frame structure (1) includes a "┎"-shaped neck support frame (1.1) and a "┒"-shaped foot support frame (1.2) that are horizontally connected to each other and have an operating space in the middle. The neck calibration module (3) and the foot calibration module (2) are staggered and vertically installed on the inner side of their respective support frames. The neck calibration module (3) includes a neck honeycomb aluminum fixing assembly (3.1) and a neck impact hammer assembly (3.2) mounted on a neck support frame (1.1). The neck impact hammer assembly (3.2) includes a dummy neck test assembly (3.2.17), a neck swing arm (3.2.8), a neck drive arm (3.2.7), and a neck drive structure. The neck drive structure drives the neck drive arm (3.2.7), which in turn drives the neck swing arm (3.2.8) to move together, so that the dummy neck test assembly (3.2.17) mounted on the lower end of the neck swing arm (3.2.8) accurately impacts the neck honeycomb aluminum fixing assembly (3.1) at a preset angle and impact speed. The foot calibration module (2) includes: The workbench assembly (2.1) includes a dummy foot test assembly (2.1.10), a fixing structure for fixing the dummy foot test assembly (2.1.10), a sliding structure for driving the fixing structure to slide left and right, and an adjustment table (2.1.8) for providing adjustable foot support for the dummy foot test assembly (2.1.10). The adjustment assembly includes an upper and lower sliding table adjustment assembly (2.2) for vertical adjustment of the worktable assembly (2.1), a lead screw module assembly (2.3) for driving the upper and lower sliding table adjustment assembly (2.2) to slide vertically on the foot support frame (1.2), and an internal adjustment component for vertical adjustment of the adjustment table (2.1.8); and The foot impact hammer assembly (2.4) includes an impact hammer (2.4.9), a foot swing arm (2.4.8), a foot drive arm (2.4.7), and a drive structure. The drive structure drives the foot drive arm (2.4.7), and the drive arm drives the foot swing arm (2.4.8) to move together, so that the impact hammer (2.4.9) mounted on the lower end of the foot swing arm (2.4.8) accurately impacts the foot of the human foot test assembly at a preset angle and impact speed. The dummy neck test assembly (3.2.17) is fixed below the neck swing arm (3.2.8) via a neck quick-release block (3.2.10), and a handle-type quick clamp (3.2.11) clamps the neck quick-release block (3.2.10). When the neck shaft (3.2.6) drives the neck drive arm (3.2.7) to rotate, the neck electromagnet (3.2.9) fixed on the neck drive arm (3.2.7) generates a magnetic attraction to the neck swing arm (3.2.8), thereby causing the neck swing arm (3.2.8) to rotate together with the dummy neck test assembly (3.2.17) along with the neck drive arm (3.2.7). The fixed structure includes a detachable foot fixing seat (2.1.5), and the sliding structure includes left and right sliding blocks (2.1.3), a first guide rail (2.1.2) symmetrically arranged on the worktable panel (2.1.1) to guide the left and right sliding blocks (2.1.3) to slide, a positioning rack (2.1.7) arranged on the worktable panel (2.1.1), and a buckle (2.1.6) installed on the left and right sliding blocks (2.1.3) and cooperating with the positioning rack (2.1.7) to lock the left and right sliding blocks (2.1.3); the internal adjustment component includes an adjustment module (2.2.5) fixedly connected to the adjustment platform (2.1.8), and a stepper motor (2.2.4) that drives the adjustment module (2.2.5) to drive the adjustment platform (2.1.8) to adjust up and down precisely.

2. The dummy impact testing system according to claim 1, characterized in that: The dummy neck test assembly (3.2.17) is equipped with an angle sensing structure for acquiring rotation angle and a neck force sensor for acquiring linkage torque. The lower end of the neck swing arm (3.2.8) is provided with a neck acceleration sensor (3.2.15) for acquiring acceleration. During the test, the angle sensing structure, the neck acceleration sensor (3.2.15) and the neck force sensor acquire corresponding data and transmit them to the control system for storage. The foot drive arm (2.4.7) is equipped with an inclination sensor (2.4.13) for acquiring its rotation angle, the impact hammer (2.4.9) is equipped with an acceleration sensor (2.4.14) for acquiring its impact acceleration, and the dummy foot test assembly (2.1.10) is equipped with a force sensor for acquiring the impact force. During the test, the inclination sensor (2.4.13), acceleration sensor (2.4.14) and force sensor acquire corresponding data and transmit them to the control system for storage.

3. The dummy impact testing system according to claim 1, characterized in that: The neck drive structure includes a second servo motor (3.2.1) and a second planetary reducer (3.2.2) fixed to a neck impact hammer mounting base (3.2.4) via a neck reducer mounting base (3.2.3). The neck impact hammer mounting base (3.2.4) is fixedly mounted on the neck support frame (1.1) via a neck impact hammer assembly mounting plate (3.2.5). A neck rotating shaft (3.2.6) is located at the middle position of the neck impact hammer mounting base (3.2.4), and one end of the neck rotating shaft (3.2.6) is connected to the second planetary reducer (3.2.1). The output end of .2) is connected; the power provided by the servo motor two (3.2.1) drives the neck shaft (3.2.6) to rotate through the planetary reducer two (3.2.2). The rotation of the neck shaft (3.2.6) drives the neck drive arm (3.2.7) fixedly connected to it to rotate. The neck drive arm (3.2.7) drives the neck swing arm (3.2.8) to move together, so that the dummy neck test assembly (3.2.17) installed at the lower end of the neck swing arm (3.2.8) accurately impacts the neck honeycomb aluminum fixing assembly (3.1) at a preset angle and impact speed.

4. The dummy impact testing system according to claim 1, characterized in that, The upper and lower sliding table adjustment assembly (2.2) includes components disposed on the worktable panel ( 2.1.1) The slide table fixing plate one (2.2.1) below, the slide table fixing plate two (2.2.2) vertically fixed to the slide table fixing plate one (2.2.1), and the sliding seat plate (2.2.3) connected to the lead screw module assembly (2.3). The sliding seat plate (2.2.3) drives the upper and lower slide table adjustment assembly (2.2) to slide up and down in the vertical direction under the action of the lead screw module assembly (2.3).

5. The dummy impact testing system according to claim 4, characterized in that, The lead screw module assembly (2.3) includes a main frame (2.3.5) fixed on the foot support frame (1.2), a lead screw module (2.3.6) fixed on the main frame (2.3.5) by a lead screw fixing seat (2.3.7), a lead screw sleeve fixing seat (2.3.8) sleeved on the lead screw module (2.3.6), and a DC motor (2.3.1) and a worm gear reducer (2.3.2) mounted on the main frame (2.3.5); wherein, the DC motor (2.3.1) transmits power to the lead screw module (2.3.6) through the worm gear reducer (2.3.2), and drives the sliding seat plate (2.2.3) connected to it through the lead screw sleeve fixing seat (2.3.8) to drive the upper and lower sliding table adjustment assembly (2.2) to slide up and down in the vertical direction.

6. The dummy impact testing system according to claim 1, characterized in that, The foot impact hammer assembly (2.4) includes a foot impact assembly fixing plate (2.4.5) fixed on the foot support frame (1.2), a foot impact hammer fixing seat (2.4.4) fixed to the foot impact assembly fixing plate (2.4.5), and a foot rotating shaft (2.4.6) disposed between the foot impact hammer fixing seats (2.4.4) and connected to the drive structure; the drive structure includes a planetary reducer (2.4.2) and a servo motor (2.4.1) fixed on the foot impact hammer fixing seat (2.4.4) via a foot reducer fixing seat (2.4.3), the output end of the planetary reducer (2.4.2) being connected to the foot rotating shaft (2.4.6); wherein, the foot drive arm (2.4.7) is rotated by the foot rotating shaft (2.4.6) via a built-in key.

7. The dummy impact testing system according to claim 1, characterized in that, The foot impact hammer assembly (2.4) also includes an intermediate connecting structure; the intermediate connecting structure includes a magnetic fixing plate (2.4.12) fixed below the foot drive arm (2.4.7), a foot electromagnet (2.4.10) on the magnetic fixing plate (2.4.12), and a magnetic block (2.4.11) on the impact hammer (2.4.9); when the foot drive arm (2.4.7) rotates, the foot swing arm (2.4.8) and the impact hammer (2.4.9) are simultaneously driven to rotate under the magnetic attraction of the foot electromagnet (2.4.10) to the magnetic block (2.4.11).

8. A method for testing the impact of a dummy, characterized in that, The dummy impact testing system based on any one of claims 1-7 comprises: The steps for impact testing on the dummy's feet are as follows: The dummy foot test assembly (2.1.10) is fixed by the fixing structure and adjusted left and right by the sliding structure to allow the feet of different dummy foot test assemblies (2.1.10) to be placed on the adjustment platform. Placement requirements as per 2.1.8); The control system allows the upper and lower sliding table adjustment assembly (2.2) and the lead screw module assembly (2.3) to adjust the worktable assembly (2.1) up and down, and allows the internal adjustment component to adjust the table (2.1). 2.1.8) Make adjustments to ensure that the dummy foot test assembly (2.1.10) meets the precise positioning requirements of the impact hammer (2.4.9) impacting the foot; The control system controls the drive structure to rotate the foot drive arm (2.4.7) at a set angle and rotation speed. The foot drive arm (2.4.7) drives the foot swing arm (2.4.8) to rotate together, so that the impact hammer (2.4.9) impacts the foot of the dummy foot test assembly (2.1.10) at a preset impact speed and impact angle. in, The tilt sensor (2.4.13), acceleration sensor (2.4.14), and force sensor collect relevant data and transmit them to the control system for storage; The neck impact test on the dummy is conducted as follows: The dummy neck test assembly (3.2.17) is fixed to the neck swing arm (3.2.8) via the neck quick-release block (3.2.10), and the neck quick-release block (3.2.10) is clamped using a handle-type quick clamp (3.2.11). The control system controls the second servo motor (3.2.1) and the second planetary reducer (3.2.2) to rotate the neck drive arm (3.2.7) via the neck shaft (3.2.6) at a set angle and a set rotation speed. The neck electromagnet (3.2.9) fixed on the neck drive arm (3.2.7) causes the neck swing arm (3.2.8) to rotate the dummy neck test assembly (3.2.17) together at a set angle through magnetic attraction, thereby impacting the neck honeycomb aluminum fixing assembly (3.1). Among them, the angle sensing structure, the neck acceleration sensor (3.2.15) and the neck force sensor collect the corresponding data and transmit them to the control system for storage.

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