Vehicle window impact test device

Abstract

The utility model provides a vehicle window impact testing device, belongs to the technical field of vehicle window testing, and aims to solve the problem that impact positions are difficult to flexibly adjust to cover full-range detection of glass when impact testing is carried out on a vehicle window through a plurality of groups of impact objects in the prior art. Comprising a support, a clamp, a first guide rail, a first slide rail, a second guide rail, a second slide rail and an impact device. The clamp clamps the car window; the first guide rail is arranged in the length direction of the support and slidably connected with the first sliding rail. The second guide rail is fixedly arranged on the first sliding rail in the width direction of the support and slidably connected to the first sliding rail. The impact device is installed on the second sliding rail. Through cooperative movement of the first sliding rail and the second sliding rail in a two-dimensional plane, the impact device is driven to be accurately positioned to any point position on the surface of the vehicle window, and dead-corner-free full-range impact testing is achieved. According to the utility model, a single group of movable impact devices is used for replacing traditional multiple groups of fixed impact objects, so that test blind areas are eliminated, and test comprehensiveness is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle window testing technology, specifically relating to a vehicle window impact testing device. Background Technology

[0002] In the field of automotive safety performance testing, car windows, as a crucial safety component, directly impact the safety of occupants. Currently, tempered glass is commonly used in automobiles. While this material possesses certain impact resistance, it still needs to withstand high-frequency, multi-point impacts in complex climatic environments (such as extreme weather events like rain, snow, and hail) or accidents. Therefore, conducting impact fatigue tests on automotive glass to assess its structural stability and integrity under frequent impacts has become a critical step in ensuring vehicle safety performance.

[0003] In the prior art, there are already designs for equipment to test the impact fatigue resistance of automotive glass. For example, the "An Automotive Glass Impact Fatigue Testing Device" with patent number CN201920778002.1 uses multiple sets of impactors to conduct impact tests on different points on the glass surface to simulate complex stress scenarios in actual use. However, such solutions have significant drawbacks in practical applications: the multiple sets of impactors are usually fixed at specific points, and can only impact a preset area, making it difficult to flexibly adjust the impact position to cover the entire range of the glass surface. When it is necessary to focus on testing non-fixed points or special areas such as glass edges and corners, the fixed layout restricts the ability to dynamically switch points, resulting in some areas not being effectively tested and creating blind spots in the testing; at the same time, the structural design of multiple sets of impactors leads to high overall equipment complexity, increasing manufacturing and maintenance costs. Utility Model Content

[0004] In view of this, the present invention provides a vehicle window impact testing device to solve the problem in the prior art that the vehicle window is impacted by multiple sets of impacting objects, which are usually fixed at specific points and can only impact a preset area, making it difficult to flexibly adjust the impact position to cover the full range of the glass surface for testing.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A vehicle window impact testing device includes a bracket with a clamp for holding the window. The bracket also has a first guide rail located on one side of the clamp and arranged along the length of the bracket. The first guide rail has a first slide rail slidably connected to it. The first slide rail has a second guide rail arranged along the width of the bracket and has a second slide rail slidably engaged with it. The second slide rail has an impact device for impacting the window.

[0007] In this technical solution, it should be noted that the bracket, as the basic support structure of the entire device, provides installation positions and stability for other components; the clamp's function is to firmly fix the vehicle window glass, ensuring the stability of the window position during testing and preventing shaking from affecting the test results; both the first and second slide rails are electric slide rails; the first guide rail provides a sliding path for the first slide rail, limiting its movement trajectory along the length of the bracket; the first slide rail can slide along the first guide rail to adjust the position of the impact device along the length of the bracket; the second guide rail is set along the width of the bracket, and its function is to provide a sliding path for the second slide rail, limiting its movement trajectory along the width of the bracket; the second slide rail can slide along the second guide rail to adjust the position of the impact device along the width of the bracket; the impact device is used to generate impact force to conduct impact tests on the vehicle window glass. Overall Principle: By sliding the first slide rail on the first guide rail and the second slide rail on the second guide rail, the impact device can move in a two-dimensional plane along the length and width of the support, allowing it to be precisely moved to any test point on the vehicle window glass. Then, the impact device impacts the vehicle window glass, simulating various impact scenarios in actual use, to test the impact resistance of the window glass. Beneficial Effects: This device, through the combination of two-dimensional guide rails and slide rails, achieves flexible movement and precise positioning of the impact device at any point on the surface of the vehicle window glass. It breaks through the limitation of traditional multi-set fixed impactors that can only test preset areas, eliminating test blind spots. It can perform impact tests on the entire range of the vehicle window glass, including special areas such as edges and corners, greatly improving the comprehensiveness and accuracy of the test. At the same time, compared to the traditional multi-set impactor structure design, this device only requires one impact device with a movable structure, simplifying the overall structure of the equipment and reducing manufacturing and maintenance costs.

[0008] Preferably, the impact device includes a mounting shell, the top of which is connected to a limiting groove, a movable column is slidably connected in the limiting groove, and a striking ball is provided on the top of the movable column; a driving component is provided inside the mounting shell, the driving component being used to drive the movable column to move up and down.

[0009] In this technical solution, it should be noted that the mounting shell serves as the supporting frame for the entire impact device. Its interior provides installation space for the drive assembly, while the top-connected limiting groove guides and limits the sliding of the moving column, ensuring that the moving column can only move in a straight line along the vertical direction (i.e., the height direction of the bracket). The bottom of the moving column is connected to the drive assembly, and the top is equipped with a striking ball. Under the action of the drive assembly, the striking ball slides upward along the limiting groove, and the upward movement of the moving column drives the striking ball to impact the car window glass. The mounting shell contains the drive assembly, which drives the moving column to move upward, and through power output, the moving column obtains an upward impact force. Overall principle: After the drive assembly is activated, it applies an upward driving force to the moving column, causing the moving column to slide vertically upward along the limiting groove, driving the top striking ball to impact the lower surface of the car window glass at a set speed and force (or the impact surface is determined according to the installation position). After the impact is completed, the drive assembly can control the moving column to reset downward for the next impact. By adjusting the output parameters of the drive component (such as driving force, moving speed, and impact frequency), upward impact scenarios of different intensities and frequencies can be simulated. Combined with the two-dimensional movement of the first and second guide rails, upward impact tests on any point on the vehicle window glass can be achieved. Beneficial effects: This impact device precisely guides the moving column through the limiting groove, and the drive component can flexibly control the impact force and frequency. It can simulate real-world conditions such as hailstones splashing from below and road debris impacting upwards, enhancing the realism of the test scenarios.

[0010] Preferably, the drive assembly includes a turntable rotatably connected within the mounting housing. The turntable is driven by a motor to rotate. One end of the turntable is provided with an eccentric shaft, which is not centered on the turntable. A transmission rod is hinged to the eccentric shaft, and the end of the transmission rod away from the eccentric shaft is hinged to a moving column.

[0011] In this technical solution, it should be noted that the drive assembly adopts a crank-connecting rod structure design. The turntable is installed inside the mounting housing and rotated via bearings. Its center is fixed to the output shaft of the drive motor, which drives it to perform circular motion. An eccentric shaft is set at the edge of the turntable, with a gap between its axis and the turntable's rotation center, forming an eccentric structure. One end of the transmission rod is hinged to the eccentric shaft, and the other end is hinged to the bottom of the moving column. These two hinge points allow the transmission rod to swing flexibly in the plane. During operation, the motor drives the turntable to rotate at a constant speed, and the eccentric shaft rotates synchronously with the turntable. Its circular motion is converted into the vertical reciprocating motion of the moving column through the transmission rod: when the eccentric shaft rotates to the top, the transmission rod pushes the moving column to slide upward along the limiting groove, and the top striking ball hits the car window; when the eccentric shaft rotates to the bottom, the transmission rod pulls the moving column downward to reset, completing one impact cycle. The motor speed determines the turntable's rotation frequency, thus controlling the impact frequency. The eccentricity of the eccentric shaft adjusts the stroke of the moving column (by making the eccentric shaft detachably connected to the turntable, such as by bolts; additionally, various models of transmission rods are available, each with a different length to accommodate different distances of the eccentric shaft), thereby changing the impact force and displacement range of the striking ball. The advantages of this drive method are: utilizing the stability of mechanical transmission, the motor's rotational motion is precisely converted into linear reciprocating motion, enabling impact experiments on car windows; the entire assembly is integrated into the mounting housing, forming a compact structure with the moving column and limiting groove, ensuring transmission efficiency without affecting the flexibility of the impact device's movement on the two-dimensional guide rail.

[0012] Preferably, the movable column includes a connecting part and a telescopic part. The connecting part is hinged to the transmission rod. The top of the connecting part is provided with a groove. The telescopic part is slidably embedded in the groove. The bottom of the telescopic part is connected to the groove by a spring. The striking ball is located on the top of the telescopic part.

[0013] In this technical solution, it should be noted that by setting a spring between the connecting part and the telescopic part, when a trajectory deviation occurs, the spring can automatically compensate for the displacement difference through elastic deformation, so that the telescopic part can still move smoothly in the vertical direction and avoid interference and jamming.

[0014] Preferably, the bottom of the mounting housing is provided with a mounting bracket, one end of which is hinged to a second slide rail; the second slide rail is provided with a lifting device, which is used to drive the mounting bracket to rotate.

[0015] In this technical solution, it should be noted that the mounting bracket at the bottom of the mounting housing is connected to the second slide rail at one end via a hinge shaft, allowing the mounting housing to rotate in a vertical plane around the hinge point, providing a pivot point for angle adjustment of the impact device. The lifting device on the second slide rail tilts the entire impact device, enabling dynamic adjustment of the impact angle of the striking ball. Overall principle: When the impact angle needs adjustment, the lifting device is activated, causing the mounting bracket to rotate upwards or downwards around the hinge point, creating a certain tilt angle for the mounting housing, its internal moving column, and the striking ball. At this time, when the drive assembly moves the moving column upwards, the striking ball no longer impacts vertically but instead applies impact force to the window glass surface at the tilted angle. Combined with the two-dimensional planar movement of the first and second guide rails, this structure allows for precise positioning and impact testing of the impact device at any point and multiple angles on the window glass surface, simulating various real-world conditions such as oblique impacts from hail and impacts from flying road debris. Beneficial effects: By combining the articulated mounting bracket with the lifting device, the impact angle can be adjusted, breaking through the limitations of traditional vertical impact. It can more realistically simulate the complex impact directions of external forces in nature (such as hail impact in crosswind environments, oblique impact of side debris when a vehicle is moving), greatly improving the diversity and realism of test scenarios.

[0016] Preferably, the lifting device includes a cam, which is rotatably connected to the second slide rail via a connecting shaft. The cam contacts the bottom of the mounting bracket, and the connecting shaft is driven by a motor mounted on the second slide rail to achieve rotation.

[0017] In this technical solution, it should be noted that the lifting device adopts a cam drive structure. The connecting shaft is mounted on the second slide rail via bearings, with one end fixedly connected to the cam and the other end connected to the motor output shaft. The motor drives the connecting shaft and the cam to rotate synchronously. The outer contour of the cam is a specific curved shape (such as an involute or arc), and its outer circumference keeps in contact with the bottom of the mounting frame. The rotational motion of the cam is converted into the up-and-down swinging motion of the mounting frame. Working principle: When the motor drives the connecting shaft to rotate, the cam rotates synchronously with the connecting shaft. Its protruding part gradually lifts the bottom of the mounting frame, causing the mounting frame to rotate upward around the hinge point, which in turn tilts the impact device, increasing the impact angle of the striking ball. When the cam rotates to the point where the concave part contacts the mounting frame, the mounting frame falls downward under the weight of the impact device or the action of the reset mechanism, reducing the impact angle. By controlling the rotation direction and angle of the motor, the rotation position of the cam can be precisely adjusted, thereby achieving angle locking of the mounting frame and meeting the impact direction requirements of different testing scenarios.

[0018] Preferably, a crossbeam is fixedly connected to one end of the first slide rail along its length, and a cylinder is provided at the bottom of the bracket. The cylinder is vertically arranged, and the piston rod of the cylinder is connected to the crossbeam.

[0019] In this technical solution, it should be noted that one end of the first slide rail is fixedly connected to a crossbeam along its length. This crossbeam acts as a connecting hub, transmitting the driving force of the cylinder to the first slide rail. A cylinder mounted vertically at the bottom of the bracket has its piston rod fixed to the crossbeam (or hinged). The cylinder's extension and retraction movement causes the crossbeam to move vertically up and down, thereby adjusting the height of the first slide rail and the entire impact device. Overall principle: When the cylinder piston rod extends, it pushes the crossbeam upwards, causing the first slide rail to rise along the bracket's height direction, thus simultaneously raising the impact device mounted on the second slide rail. When the piston rod retracts, the crossbeam causes the first slide rail to descend, restoring the impact device to its original height. This structure, combined with the existing first guide rail (length direction) and second guide rail (width direction) moving mechanism, forms a three-dimensional coordinate adjustment system: the first guide rail controls the movement of the impact device along the length of the window, the second guide rail controls the movement along the width, and the cylinder controls the movement along the height. The three mechanisms work together to precisely position the striking ball at any location on the window surface (including different height areas such as the top, bottom, and edges), meeting the full range of testing requirements for different vehicle models and window glass specifications. Beneficial effect: Through the linkage design of the cylinder and crossbeam, a vertical adjustment dimension is added to the impact device, upgrading it from two-dimensional planar movement to three-dimensional spatial positioning.

[0020] Preferably, the bracket is further provided with a guide shaft, the guide shaft is vertically arranged, and the crossbeam is slidably sleeved on the guide shaft.

[0021] In this technical solution, it should be noted that the guide shaft on the bracket is vertically fixed, with its axis parallel to the direction of movement of the cylinder piston rod. A sliding sleeve hole (or a linear bearing) is provided on the crossbeam at the position corresponding to the guide shaft, allowing the crossbeam to be fitted onto the outer surface of the guide shaft through the sliding sleeve hole, forming a vertical sliding fit. The function of the guide shaft is to provide rigid guidance for the vertical movement of the crossbeam. Through its sliding connection with the crossbeam, it restricts the lateral displacement of the crossbeam during vertical movement (such as left-right swaying or back-and-forth swinging), ensuring that the crossbeam drives the first slide rail and impact device to smoothly rise and fall vertically.

[0022] Preferably, the clamp includes fixing plates respectively disposed on both sides of the top of the bracket, a slot is provided on one side of the fixing plate in the width direction, a screw is screwed to the top of the fixing plate, and the bottom of the screw passes into the slot and is connected to a clamping plate.

[0023] In this technical solution, it should be noted that the clamp adopts a double-sided symmetrical design, achieving stable clamping of the vehicle window glass through the cooperation of the fixing plate and the clamping plate: the fixing plates on both sides of the top of the bracket serve as the basic support, and the slot on one side in the width direction is used to accommodate the edge of the vehicle window glass. The depth and width of the slot are designed according to the thickness of the vehicle window glass and the assembly requirements; the screw screwed to the top of the fixing plate can make it move linearly along the axial direction by rotating the screw screw. The end of the screw screw, which passes through the slot at the bottom, is fixedly connected to the clamping plate. When the screw screw rotates, it drives the clamping plate to move up and down in the slot. Working principle: When it is necessary to fix the vehicle window glass, first put the edge of the glass into the slot, and then rotate the screw clockwise to make the clamping plate move downward along the inner wall of the slot until the clamping plate and the bottom of the slot form an up and down clamping force on the glass; conversely, rotating the screw counterclockwise will make the clamping plate rise and release the clamping of the glass.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0025] 1. In this utility model, the combination structure of two-dimensional guide rail and slide rail enables the impact device to move flexibly and be precisely positioned at any point on the surface of the vehicle window glass. This breaks through the limitation of traditional multiple fixed impact objects that can only test a preset area, eliminates test blind spots, and can perform impact tests on the entire range of the vehicle window glass, including special areas such as edges and corners, greatly improving the comprehensiveness and accuracy of the test. At the same time, compared with the traditional multi-object structure design, this device only requires one impact device with a movable structure, which simplifies the overall structure of the equipment and reduces manufacturing and maintenance costs.

[0026] 2. In this utility model, the stability of mechanical transmission is utilized to accurately convert the rotational motion of the motor into linear reciprocating motion, thereby realizing the impact test on the car window; the overall components are integrated into the mounting shell, forming a compact structure with the moving column and the limiting groove, which ensures both transmission efficiency and does not affect the flexibility of the impact device on the two-dimensional guide rail.

[0027] 3. In this utility model, the impact angle can be adjusted by the cooperation of the hinged mounting frame and the lifting device, which breaks through the limitations of traditional vertical impact and can more realistically simulate the complex external force impact direction in nature (such as hail impact in crosswind environment, oblique impact of side splashes when the vehicle is moving, etc.), greatly improving the diversity and realism of the test scenario.

[0028] 4. In this utility model, the linkage design of the cylinder and the crossbeam adds a vertical adjustment dimension to the impact device, upgrading it from two-dimensional planar movement to three-dimensional spatial positioning. Attached Figure Description

[0029] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the present invention without windows;

[0032] Figure 3 for Figure 2 A schematic diagram of the oblique stereoscopic structure;

[0033] Figure 4 This is a three-dimensional structural diagram of the first guide rail after cutting and the impact device of this utility model.

[0034] Figure 5 This is a three-dimensional structural diagram of the clamp of this utility model;

[0035] Figure 6 This is a cross-sectional three-dimensional structural diagram of the movable column of this utility model;

[0036] The components are: 1-bracket, 2-window, 3-fixed plate, 4-first guide rail, 5-first slide rail, 6-second guide rail, 7-second slide rail, 8-crossbeam, 9-mounting housing, 11-cylinder, 12-guide shaft, 13-limiting groove, 14-moving column, 15-striking ball, 16-turntable, 17-eccentric shaft, 18-transmission rod, 19-mounting bracket, 20-hinge shaft, 21-cam, 22-connecting shaft, 23-screw, 24-clamping plate, 25-slot, 26-connecting part, 27-telescopic part, 28-groove, 29-spring. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0043] Example 1

[0044] like Figures 1-6As shown in the figure, this utility model discloses a vehicle window impact testing device, including a bracket 1. The bracket 1 is provided with a clamp for holding the vehicle window 2. The bracket 1 is also provided with a first guide rail 4, which is located on one side of the clamp and is arranged along the length direction of the bracket 1. The first guide rail 4 is provided with a first slide rail 5 that is slidably connected to it. The first slide rail 5 is provided with a second guide rail 6, which is arranged along the width direction of the bracket 1. The second guide rail 6 is provided with a second slide rail 7 that is slidably engaged with it, and the second slide rail 7 is provided with an impact device for impacting the vehicle window 2. It should be noted that bracket 1 serves as the basic support structure for the entire device, providing installation positions and stability for other components; the clamp's function is to firmly fix the glass of window 2, ensuring the stability of window 2 during testing and preventing shaking from affecting the test results; both the first slide rail 5 and the second slide rail 7 are electric slide rails; the first guide rail 4 provides a sliding path for the first slide rail 5, limiting its movement trajectory along the length of bracket 1; the first slide rail 5 can slide along the first guide rail 4, realizing the position adjustment of the impact device along the length of bracket 1; the second guide rail 6 is set along the width of bracket 1, and the second guide rail 6 provides a sliding path for the second slide rail 7, limiting its movement trajectory along the width of bracket 1; the second slide rail 7 can slide along the second guide rail 6, realizing the position adjustment of the impact device along the width of bracket 1; the impact device is used to generate impact force to conduct impact tests on the glass of window 2. Overall Principle: By sliding the first slide rail 5 on the first guide rail 4 and the second slide rail 7 on the second guide rail 6, the impact device can move in a two-dimensional plane along the length and width of the bracket 1. This allows the impact device to be precisely moved to any test point on the glass of the car window 2. Then, the impact device is used to impact the glass of the car window 2, simulating various impact scenarios in actual use, and testing the impact resistance performance of the glass of the car window 2. Beneficial Effects: This device, through the combination of two-dimensional guide rails and slide rails, achieves flexible movement and precise positioning of the impact device at any point on the surface of the glass of the car window 2. It breaks through the limitation of traditional multiple sets of fixed impactors that can only test a preset area, eliminates test blind spots, and can perform impact tests on the entire range of the glass of the car window 2, including special areas such as edges and corners, greatly improving the comprehensiveness and accuracy of the test. At the same time, compared with the traditional multi-set impactor structure design, this device only requires one impact device with a movable structure, simplifying the overall structure of the equipment and reducing manufacturing and maintenance costs.

[0045] Example 2

[0046] like Figure 4As shown, this embodiment is largely the same as the above embodiment, except that the impact device includes a mounting shell 9. The top of the mounting shell 9 is connected to a limiting groove 13, and a movable column 14 is slidably connected within the limiting groove 13. The top of the movable column 14 is provided with a striking ball 15. A drive assembly is provided inside the mounting shell 9 to drive the movable column 14 to move up and down. It should be noted that the mounting shell 9 serves as the support frame for the entire impact device, and its interior provides installation space for the drive assembly. The limiting groove 13 connected at the top provides guidance and limiting for the sliding of the movable column 14, ensuring that the movable column 14 can only move in a straight line in the vertical direction (i.e., the height direction of the bracket 1). The bottom of the movable column 14 is connected to the drive assembly, and the top is provided with a striking ball 15. Under the action of the drive assembly, it can slide upward along the limiting groove 13. The upward movement of the movable column 14 drives the striking ball 15 to impact the glass of the car window 2. The drive assembly is provided inside the mounting shell 9 to drive the movable column 14 to move upward, and the power output gives the movable column 14 an upward impact force. Overall Principle: After the drive component is activated, it applies an upward driving force to the moving column 14. The moving column 14 slides vertically upward along the limiting groove 13, causing the top striking ball 15 to impact the lower surface of the car window 2 glass at a set speed and force (or the impact surface is determined according to the installation position). After the impact is completed, the drive component can control the moving column 14 to reset downward for the next impact. By adjusting the output parameters of the drive component (such as the magnitude of the driving force, the moving speed, the impact frequency, etc.), upward impact scenarios of different intensities and frequencies can be simulated. With the two-dimensional movement of the first guide rail 4 and the second guide rail 6, upward impact tests can be performed on any point of the car window 2 glass. Beneficial Effects: This impact device accurately guides the moving column 14 through the limiting groove 13. The drive component can flexibly control the impact force and frequency, simulating actual working conditions such as hail splashing from below and road gravel impacting upward, enhancing the realism of the test scenario.

[0047] like Figure 4As shown, in this embodiment, the drive assembly includes a turntable 16, which is rotatably connected within the mounting housing 9. The turntable 16 is driven by a motor to rotate. One end of the turntable 16 is provided with an eccentric shaft 17, which has a different center from the turntable 16. A transmission rod 18 is hinged to the eccentric shaft 17, and the end of the transmission rod 18 away from the eccentric shaft 17 is hinged to the moving column 14. It should be noted that the drive assembly adopts a crank-connecting rod structure design. The turntable 16 is installed inside the mounting housing 9 and is rotatably connected through bearings. Its center is fixed to the output shaft of the drive motor, and it is driven by the motor to perform circular motion. The eccentric shaft 17 is located at the edge of the turntable 16, and there is a gap between the axis of the eccentric shaft 17 and the rotation center of the turntable 16, forming an eccentric structure. One end of the transmission rod 18 is hinged to the eccentric shaft 17, and the other end of the transmission rod 18 is hinged to the bottom of the moving column 14. The two hinge points allow the transmission rod 18 to swing flexibly in the plane. During operation, the motor drives the turntable 16 to rotate at a constant speed, and the eccentric shaft 17 rotates synchronously with the turntable 16. Its circular motion is converted into the vertical reciprocating motion of the moving column 14 through the transmission rod 18. When the eccentric shaft 17 rotates to the top, the transmission rod 18 pushes the moving column 14 to slide upward along the limiting groove 13, and the top striking ball 15 hits the car window 2. When the eccentric shaft 17 rotates to the bottom, the transmission rod 18 pulls the moving column 14 downward to reset, completing one impact cycle. The motor speed determines the rotation frequency of the turntable 16, thereby controlling the impact frequency. The eccentric distance of the eccentric shaft 17 can adjust the stroke of the moving column 14 (by setting the eccentric shaft 17 to be detachably connected to the turntable 16, such as by bolt connection; in addition, the transmission rod 18 is also available in various models, each with a different length, to accommodate the eccentric shaft 17 at different distances), thereby changing the impact force and displacement range of the striking ball 15. The advantage of this driving method is that it utilizes the stability of mechanical transmission to accurately convert the rotational motion of the motor into linear reciprocating motion, thereby enabling the impact test on the car window 2. The entire component is integrated into the mounting shell 9, forming a compact structure with the moving column 14 and the limiting groove 13, which ensures both transmission efficiency and does not affect the flexibility of the impact device's movement on the two-dimensional guide rail.

[0048] like Figure 6 As shown, in this embodiment, the movable column 14 includes a connecting part 26 and a telescopic part 27. The connecting part 26 is hinged to the transmission rod 18. The top of the connecting part 26 is provided with a groove 28. The telescopic part 27 is slidably embedded in the groove 28, and the bottom of the telescopic part 27 is connected to the groove 28 by a spring 29. The striking ball 15 is located on the top of the telescopic part 27. It should be noted that by setting the spring 29 between the connecting part 26 and the telescopic part 27, when a trajectory deviation occurs, the spring 29 can automatically compensate for the displacement difference through elastic deformation, so that the telescopic part 27 can still move smoothly in the vertical direction and avoid interference and jamming.

[0049] Example 4

[0050] like Figure 4 As shown, this embodiment is largely the same as the above embodiment, except that the mounting housing 9 has a mounting bracket 19 at its bottom, one end of which is hinged to the second slide rail 7; the second slide rail 7 has a lifting device, which drives the mounting bracket 19 to rotate. It should be noted that the mounting bracket 19 at the bottom of the mounting housing 9 is connected to the second slide rail 7 at one end via a hinge shaft 20, allowing the mounting housing 9 to rotate in a vertical plane around the hinge point, providing a pivot point for angle adjustment of the impact device; the lifting device on the second slide rail 7 tilts the entire impact device, achieving dynamic adjustment of the impact angle of the striking ball 15. Overall principle: When the impact angle needs to be adjusted, the lifting device is activated, causing the mounting bracket 19 to rotate upwards or downwards around the hinge point, causing the mounting housing 9, along with the internal moving column 14 and the striking ball 15, to form a certain tilt angle. At this time, when the drive assembly drives the moving column 14 upwards, the striking ball 15 no longer impacts vertically, but instead applies impact force to the glass surface of the window 2 at the tilted angle. By combining the two-dimensional planar movement of the first guide rail 4 and the second guide rail 6, this structure can achieve precise positioning and impact testing of the impact device at any point and multiple angles on the glass surface of the vehicle window 2, simulating various actual working conditions such as oblique impact of hail and impact of road debris. Beneficial effects: Through the cooperation of the hinged mounting bracket 19 and the lifting device, the impact angle can be adjusted, breaking through the limitations of traditional vertical impact. It can more realistically simulate complex external force impact directions in nature (such as hail impact in crosswind conditions, oblique impact of side debris when a vehicle is moving), greatly improving the diversity and realism of the test scenarios.

[0051] like Figure 4As shown, in this embodiment, the lifting device includes a cam 21, which is rotatably connected to the second slide rail 7 via a connecting shaft 22. The cam 21 contacts the bottom of the mounting frame 19. The connecting shaft 22 is driven by a motor mounted on the second slide rail 7 to achieve rotation. It should be noted that the lifting device adopts a cam 21 transmission structure. The connecting shaft 22 is mounted on the second slide rail 7 via bearings, with one end fixedly connected to the cam 21 and the other end connected to the motor output shaft. The motor drives the connecting shaft 22 and the cam 21 to rotate synchronously. The outer contour of the cam 21 is a specific curved shape (such as an involute or arc), and its outer circumferential surface remains in contact with the bottom of the mounting frame 19. The rotational motion of the cam 21 is converted into the up-and-down swinging motion of the mounting frame 19. Working principle: When the motor drives the connecting shaft 22 to rotate, the cam 21 rotates synchronously with the connecting shaft 22. Its protruding part gradually pushes up the bottom of the mounting bracket 19, causing the mounting bracket 19 to rotate upward around the hinge point, which in turn causes the impact device to tilt, and the impact angle of the striking ball 15 increases accordingly. When the cam 21 rotates to the point where the concave part contacts the mounting bracket 19, the mounting bracket 19 falls downward under the action of the impact device's own gravity or the reset mechanism, and the impact angle decreases. By controlling the rotation direction and angle of the motor, the rotation position of the cam 21 can be precisely adjusted, thereby achieving angle locking of the mounting bracket 19 and meeting the impact direction requirements of different testing scenarios.

[0052] Example 5

[0053] like Figure 3As shown, this embodiment is largely the same as the above embodiment, except that a crossbeam 8 is fixedly connected to one end of the first slide rail 5 along its length, and a cylinder 11 is provided at the bottom of the bracket 1. The cylinder 11 is vertically arranged, and its piston rod is connected to the crossbeam 8. It should be noted that the crossbeam 8, which is fixedly connected to one end of the first slide rail 5 along its length, serves as a connecting hub, transmitting the driving force of the cylinder 11 to the first slide rail 5. The cylinder 11 at the bottom of the bracket 1 is vertically installed, and its piston rod is fixed to the top of the crossbeam 8 (or hinged). The extension and retraction of the cylinder 11 can drive the crossbeam 8 to move up and down in the vertical direction, thereby realizing the height adjustment of the first slide rail 5 and the entire impact device. Overall principle: When the piston rod of the cylinder 11 extends, it pushes the crossbeam 8 upward, causing the first slide rail 5 to rise along the height direction of the bracket 1, so that the impact device installed on the second slide rail 7 rises synchronously; when the piston rod retracts, the crossbeam 8 drives the first slide rail 5 downward, realizing the height reset of the impact device. This structure, combined with the existing first guide rail 4 (length direction) and second guide rail 6 (width direction) moving mechanism, forms a three-dimensional coordinate adjustment system: the first guide rail 4 controls the movement of the impact device in the length direction of the window 2, the second guide rail 6 controls the movement in the width direction, and the cylinder 11 controls the movement in the height direction. The three mechanisms work together to precisely position the striking ball 15 to any position on the glass surface of the window 2 (including different height areas such as the top, bottom, and edges), meeting the full range of testing requirements for different vehicle models and window 2 glass specifications. Beneficial effect: Through the linkage design of the cylinder 11 and the crossbeam 8, a vertical adjustment dimension is added to the impact device, upgrading it from two-dimensional planar movement to three-dimensional spatial positioning.

[0054] like Figure 3 As shown in this embodiment, the bracket 1 is further provided with a guide shaft 12, which is vertically arranged, and the crossbeam 8 is slidably sleeved on the guide shaft 12. It should be noted that the guide shaft 12 on the bracket 1 is vertically fixed, and its axis is parallel to the movement direction of the piston rod of the cylinder 11. A sliding sleeve hole (or a linear bearing) is provided on the crossbeam 8 corresponding to the position of the guide shaft 12, allowing the crossbeam 8 to be sleeved on the outer surface of the guide shaft 12 through the sliding sleeve hole, forming a vertical sliding fit. The function of the guide shaft 12 is to provide rigid guidance for the vertical movement of the crossbeam 8. Through its sliding connection with the crossbeam 8, it restricts the lateral displacement of the crossbeam 8 during vertical movement (such as left-right swaying or back-and-forth swinging), ensuring that the crossbeam 8 drives the first slide rail 5 and the impact device to rise and fall smoothly in the vertical direction.

[0055] Example 6

[0056] like Figure 5As shown, this embodiment is largely the same as the above embodiment, except that the clamp includes fixing plates 3 respectively disposed on both sides of the top of the bracket 1. One side of the fixing plate 3 in the width direction is provided with a slot 25. A screw 23 is screwed to the top of the fixing plate 3, and the bottom of the screw 23 passes through the slot 25 and is connected to a clamping plate 24. It should be noted that the clamp adopts a double-sided symmetrical design. The fixed plates 3 on both sides of the top of the bracket 1 serve as the basic support. The slot 25 on one side in the width direction is used to accommodate the edge of the window 2 glass. The depth and width of the slot 25 are designed according to the thickness of the window 2 glass and the assembly requirements. The screw 23 screwed to the top of the fixing plate 3 can make it move linearly along the axial direction by rotating the screw 23. The end of the screw 23 that passes through the slot 25 is fixedly connected to the clamping plate 24. When the screw 23 rotates, it drives the clamping plate 24 to move up and down in the slot 25. Working principle: When it is necessary to fix the glass of the car window 2, first put the edge of the glass into the slot 25, and then rotate the screw 23 clockwise to make the clamp 24 move downward along the inner wall of the slot 25 until the clamp 24 and the bottom of the slot 25 form an upper and lower clamping force on the glass; conversely, rotating the screw 23 counterclockwise can make the clamp 24 rise and release the clamp on the glass.

[0057] The working principle of this utility model is as follows:

[0058] The operator first inserts the edge of the glass of the window to be tested 2 into the slots 25 of the fixing plates 3 on both sides of the top of the bracket 1. Then, the screw 23 on the top of the fixing plate 3 is tightened clockwise, driving the clamping plate 24 to move down along the slots 25 to press the glass, thus completing the secure clamping of the window 2. After the control system is started, the electric slider at the bottom of the first slide rail 5 slides along the first guide rail 4 in the length direction of the bracket 1, while the electric slider of the second slide rail 7 moves in the width direction along the second guide rail 6 on the first slide rail 5. The two work together to accurately position the impact device to the target test point on the surface of the window 2. If the impact height needs to be adjusted, the cylinder 11 at the bottom of the bracket 1 pushes the piston rod to rise vertically, driving the crossbeam 8 fixed to the end of the first slide rail 5 to rise vertically along the guide shaft 12, so that the striking ball 15 in the mounting shell 9 reaches the set height. If the impact angle needs to be adjusted, the motor on the second slide rail 7 drives the connecting shaft 22 to rotate the cam 21. The profile of the cam 21 lifts the bottom of the mounting bracket 19, causing the mounting bracket 19 hinged on the second slide rail 7 to tilt at a specific angle. After positioning is completed, the motor inside the impact device drives the turntable 16 to rotate, and the eccentric shaft 17 moves in a circle with the turntable 16. Through the transmission rod 18, it pushes the connecting part 26 of the moving column 14 to move vertically upward along the limiting groove 13. When the striking ball 15 contacts the glass, the spring 29 at the bottom of the telescopic part 27 is compressed to buffer the impact force.

[0059] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle window impact testing device, characterized in that, Includes a bracket (1), which is provided with a clamp for holding a car window (2), and the bracket (1) is also provided with a first guide rail (4), which is located on one side of the clamp. The first guide rail (4) is arranged along the length direction of the bracket (1), and the first guide rail (4) is provided with a first slide rail (5) that is slidably connected to it. The first slide rail (5) is provided with a second guide rail (6), which is arranged along the width direction of the bracket (1). The second guide rail (6) is provided with a second slide rail (7) that slides with it, and the second slide rail (7) is provided with an impact device for hitting the car window (2).

2. The vehicle window impact testing device according to claim 1, characterized in that, The impact device includes a mounting shell (9), the top of which is connected to a limiting groove (13), a movable column (14) is slidably connected in the limiting groove (13), and a striking ball (15) is provided on the top of the movable column (14). The mounting housing (9) is provided with a drive assembly, which is used to drive the moving column (14) to move up and down.

3. The vehicle window impact testing device according to claim 2, characterized in that, The drive assembly includes a turntable (16) which is rotatably connected inside the mounting housing (9). The turntable (16) is driven by a motor to rotate. One end of the turntable (16) is provided with an eccentric shaft (17) which is not at the center of the turntable (16). A transmission rod (18) is hinged on the eccentric shaft (17). The end of the transmission rod (18) away from the eccentric shaft (17) is hinged to a moving column (14).

4. The vehicle window impact testing device according to claim 2, characterized in that, The mounting housing (9) is provided with a mounting bracket (19) at the bottom, and one end of the mounting bracket (19) is hinged to the second slide rail (7); The second slide rail (7) is provided with a lifting device, which is used to drive the mounting frame (19) to rotate.

5. The vehicle window impact testing device according to claim 4, characterized in that, The lifting device includes a cam (21), which is rotatably connected to the second slide rail (7) via a connecting shaft (22). The cam (21) contacts the bottom of the mounting bracket (19). The connecting shaft (22) is driven by a motor mounted on the second slide rail (7) to achieve rotation.

6. The vehicle window impact testing device according to claim 2, characterized in that, The movable column (14) includes a connecting part (26) and a telescopic part (27). The connecting part (26) is hinged to the transmission rod (18). The top of the connecting part (26) is provided with a groove (28). The telescopic part (27) is slidably embedded in the groove (28). The bottom of the telescopic part (27) is connected to the groove (28) by a spring (29). The striking ball (15) is provided on the top of the telescopic part (27).

7. A vehicle window impact testing device according to claim 1, characterized in that, One end of the first slide rail (5) is fixedly connected to a crossbeam (8) in the length direction. The bottom of the bracket (1) is provided with a cylinder (11). The cylinder (11) is set vertically, and the piston rod of the cylinder (11) is connected to the crossbeam (8).

8. A vehicle window impact testing device according to claim 7, characterized in that, The bracket (1) is also provided with a guide shaft (12), which is vertically arranged, and the crossbeam (8) is slidably sleeved on the guide shaft (12).

9. A vehicle window impact testing device according to claim 1, characterized in that, The clamp includes fixing plates (3) respectively located on both sides of the top of the bracket (1). One side of the fixing plate (3) in the width direction is provided with a slot (25). A screw (23) is screwed to the top of the fixing plate (3). The bottom of the screw (23) is inserted into the slot (25) and connected to a clamping plate (24).

Images