Automotive window glass channel seal resistance simulation test system

Abstract

The application discloses a vehicle window glass guide groove sealing strip resistance simulation test system, which comprises a mounting table, a transverse test air cylinder and a guide frame are mounted on the mounting table, a friction device is mounted on the guide frame, and a glass sheet is arranged at the bottom of the friction device; a sealing strip mounting groove for fixing a sealing strip to be tested is arranged on the mounting table directly below the glass sheet, the glass sheet is embedded in the sealing strip to be tested, and the transverse test air cylinder drives the friction device to drive the glass sheet to reciprocate; a transverse force sensor is sleeved on the piston rod of the transverse test air cylinder, so as to detect the resistance suffered during transverse reciprocating motion; a vertical test air cylinder capable of driving the glass sheet to move vertically is integrated on the friction device, and a vertical force sensor is sleeved on the lower end piston rod of the vertical test air cylinder, so as to detect the resistance suffered during vertical reciprocating motion.

Description

Technical Field

[0001] This invention relates to the field of glass abrasion resistance testing technology, specifically to a simulation testing system for the resistance of sealing strips in automotive window glass guide channels. Background Technology

[0002] The sliding resistance of the window glass guide channel sealing strip is a key parameter affecting the smoothness of window operation, the durability of the sealing strip, and the overall NVH performance of the vehicle. Excessive resistance can lead to window jamming, motor overload, and abnormal wear of the sealing strip; insufficient resistance may cause problems such as water leakage and wind noise. Therefore, it is crucial to use simulation testing devices to accurately and efficiently evaluate the sliding resistance during the development and quality control of the sealing strip.

[0003] Currently, various devices for simulating the sliding resistance of sealing strips have been developed in the industry. A recently published Chinese patent, CN118758475B, proposes a solution. This device integrates a side-shifting plate, a reciprocating lead screw, and a unidirectional drive assembly into the glass clamping mechanism. This allows the glass to automatically move laterally a certain distance after each reciprocating slide, thus automatically changing the relative position between the glass and the sealing strip lip without human intervention, significantly improving the efficiency of multi-condition testing.

[0004] However, existing technologies, including CN118758475B, primarily focus on the automatic change of the relative position of the friction pair, lacking effective solutions for the realistic simulation and flexible adjustment of the clamping force of the sealing strip on the glass, another core physical quantity affecting sliding resistance. Existing devices typically employ fixed or only roughly engaging structures for the sealing strip mounting groove, making it difficult to conveniently and stably change the clamping force of the sealing strip on the glass during testing. Furthermore, it is challenging to simulate clamping force variations caused by installation tolerances, sealing strip aging, or door panel deformation.

[0005] In actual car doors, the sealing strip is installed within a sheet metal groove, and the clamping force between its two side walls and the glass comes from the compression of the groove width. However, existing testing equipment lacks a simple structure capable of simulating this "dual-sided synchronous, continuously adjustable" clamping mechanism.

[0006] Therefore, there is an urgent need for a testing system that can conveniently and stably adjust the clamping force of the sealing strip on the glass while simulating the reciprocating lifting and lowering of the glass. Specifically, it should use a simple and reliable mechanical structure to achieve continuous and synchronous adjustment of the distance between the two side walls of the sealing strip mounting groove, thereby realistically simulating the sliding resistance characteristics under different clamping force states and providing a testing platform that is closer to engineering practice for the performance evaluation of the sealing strip. Summary of the Invention

[0007] To address the above technical problems, this invention provides a simulation test system for the resistance of a vehicle window glass guide groove sealing strip.

[0008] The technical solution is as follows: a simulated test system for the resistance of a sealing strip in a car window glass guide groove, including a mounting platform, the key point of which is: a transverse test cylinder and a guide frame are installed on the mounting platform, a friction device is installed on the guide frame, and a glass plate is provided at the bottom of the friction device;

[0009] A sealing strip mounting groove for fixing the sealing strip to be tested is provided on the mounting platform directly below the glass plate. The glass plate is embedded in the sealing strip to be tested, and the transverse test cylinder drives the friction device to move the glass plate back and forth.

[0010] A lateral force sensor is fitted onto the piston rod of the lateral test cylinder to detect the resistance encountered during lateral reciprocating motion.

[0011] The friction device integrates a vertical test cylinder capable of driving the glass plate to move vertically. A vertical force sensor is fitted on the piston rod at the lower end of the vertical test cylinder to detect the resistance encountered during vertical reciprocating motion.

[0012] Using the above structure, this system integrates core components such as a horizontal test cylinder, a vertical test cylinder, a guide frame, and a sealing strip mounting slot on the mounting platform, forming a complete and independent testing station. The horizontal test cylinder serves as the horizontal drive source, with its piston rod directly connected to the friction device, providing a stable and controllable reciprocating driving force. The sealing strip mounting slot is used to fix the sealing strip under test, with the glass plate vertically embedded in the slot, simulating the fit between the glass and the guide groove in a real car window. When the horizontal test cylinder drives the friction device to move the glass plate reciprocally within the sealing strip, it can highly simulate the interaction between the glass and the seal during the raising and lowering of a car window. More importantly, this system, through the relative frictional motion of the strip, uses lateral force sensors and vertical force sensors respectively mounted on the piston rods of the lateral and vertical test cylinders to independently and in real time detect and collect the resistance data experienced by the glass strip during horizontal reciprocating motion and vertical movement. This enables direct measurement and decoupled analysis of the sliding resistance and normal pressure-related resistance of the sealing strip, providing a reliable data foundation for a comprehensive and accurate evaluation of the tribological performance of the sealing strip. It solves the problem that existing devices can only simulate motion but lack real-time force measurement capabilities and cannot quantitatively analyze multi-dimensional resistance characteristics.

[0013] As a preferred embodiment: a tightening knob is provided on one side of the sealing strip mounting groove, and sliding strips are arranged opposite each other on both sides inside the sealing strip mounting groove, with the sealing strip to be tested installed above the sliding strips;

[0014] The sliding bars are provided with hinges in a "Z" shape, and the joints of the hinges are respectively engaged in the corresponding sliding bars and slide with the sliding bars;

[0015] The tightening knob is connected to the hinge joint. When tightened, it drives the hinge joint to straighten and pull the two sliding bars closer together, so that the sealing strip clamps the glass sheet. When loosened, the hinge joint returns to the unfolded state and pulls the two sliding bars further apart.

[0016] The sliding bar has a sliding groove on the side near the hinge joint, and the internal space of the sliding groove is larger than its opening width; the joint of the hinge joint protrudes outward to form a sliding block, which is inserted into the corresponding sliding groove and can slide along the sliding groove to realize the sliding engagement between the hinge joint and the sliding bar.

[0017] Using the above structure, through the linkage clamping mechanism of "Z-shaped hinge joint + sliding strip + tension knob", the operator only needs to rotate the tension knob to drive the hinge joint to expand and contract, thereby synchronously pulling the sliding strips on both sides closer or further away. This structure realistically simulates the clamping force state of the sealing strip under different compression levels in the car door sheet metal groove. At the same time, the internal space of the sliding groove is larger than its opening width, forming a "T-shaped" sliding fit structure. The sliding block at the joint of the hinge joint is inserted into it, ensuring that the hinge joint always maintains a stable mechanical connection with the sliding strip during the expansion and contraction process, without separation or jamming. It can also withstand a certain off-center load torque, ensuring the parallelism and synchronization of the two sliding strips during the force and movement process. This provides a reliable structural foundation for the uniform application of the sealing strip clamping force and avoids the problem of uneven clamping force distribution caused by the skew of the sliding strip.

[0018] Preferably, a cylinder support frame is installed on the mounting platform. The cylinder support frame is a support plate that is vertically fixed on the mounting platform and is located near the left end of the mounting platform. A cylinder height adjustment groove is opened on the cylinder support frame in the vertical direction. The outer end of the cylinder body of the transverse test cylinder is connected to an adjustment slider installed in the cylinder height adjustment groove to adjust the initial height of the transverse test cylinder.

[0019] The guide frame includes four rectangular support guide plates arranged on the right side of the mounting platform. The sealing strip mounting groove is located between the front and rear support guide plates. The friction device is installed between the four support guide plates via a guide limiting mechanism.

[0020] With the above structure, a vertical cylinder height adjustment slot is opened on the cylinder support frame, and the cylinder body of the transverse test cylinder is installed in conjunction with the adjustment slider, so as to realize stepless adjustment of the initial installation height of the transverse test cylinder. The guide frame is composed of four rectangular support guide plates, forming a stable gantry frame. The sealing strip installation slot is located precisely between the front and rear support guide plates, making compact and reasonable use of space. The friction device is installed between the four support guide plates through the guide limiting mechanism. Its movement trajectory is strictly constrained by the guide frame, which can effectively prevent swaying and shaking during the movement, and ensure the stability of the contact between the glass plate and the sealing strip and the repeatability accuracy of the test data.

[0021] Preferably, the friction device further includes a vertical test cylinder, which is set vertically downward. The outer end of its piston rod passes through a sleeve and is then fixedly connected to a support rod. The support rod is set horizontally above the sealing strip mounting groove. Both ends of the support rod are bent downward and fixedly embedded with glass sheet clamping grooves. The glass sheet is detachably installed in the glass sheet clamping grooves.

[0022] The sleeve is mounted on the guide frame via the guide limiting mechanism, and the outer end of the piston rod of the transverse test cylinder is connected to the sleeve to drive the entire friction device to reciprocate horizontally.

[0023] With the above structure, the friction device integrates a vertically downward-positioned vertical test cylinder. Its piston rod passes through the sleeve and is connected to the glass plate clamping groove via a support rod. The glass plate is detachably installed in the groove. This design forms an integrated transmission structure of "horizontal drive + vertical loading": the horizontal test cylinder drives the sleeve to drive the entire friction device to reciprocate horizontally, realizing the friction stroke; the vertical test cylinder independently applies downward positive pressure to simulate the squeezing condition of the car window glass on the sealing strip. The sleeve, as the connecting hub, is both the force-bearing component of horizontal drive and the guide component of vertical loading. The force transmission path is short and there are fewer intermediate links, effectively reducing transmission gaps and elastic deformation. The glass plate adopts a detachable clamping method, and friction elements of different materials or surface conditions can be flexibly replaced according to the test standards, expanding the applicability and testing flexibility of the system.

[0024] Preferably, all of the support guide plates have limit grooves in the vertical direction, with the limit grooves of the two front support guide plates facing each other and the limit grooves of the two rear support guide plates facing each other.

[0025] The guide limiting mechanism includes two adjusting guide rods arranged in parallel between the two front support guide plates and two adjusting guide rods between the two rear support guide plates. Both ends of the adjusting guide rods extend into the limiting grooves of the adjacent support guide plates and are fixed by snap-fit ​​blocks. The gap height between the two adjusting guide rods can be changed by adjusting the fixed position of the snap-fit ​​blocks.

[0026] The sleeve is connected to guide rods on its front and rear side walls, and the outer end of the guide rods extends into the guide gap formed between the two adjusting guide rods on the front and rear sides to achieve rolling support and vertical positioning.

[0027] With the above structure, vertical limiting grooves are opened on all support guide plates, providing a precise positioning benchmark for the installation of the adjusting guide rods. Two adjusting guide rods, each parallel to the front and rear sides, are fixed in the limiting grooves by snap-fit ​​blocks, forming a set of horizontal and adjustable rolling guides. The outer ends of the guide rods connected to the front and rear sides of the sleeve are precisely embedded in the guide gap between the two adjusting guide rods, converting the sliding friction between the friction device and the guide frame during horizontal movement into the rolling friction of the guide rods along the guide rods, reducing motion resistance and making the reciprocating motion smoother and more stable. At the same time, the height of the guide gap can be changed by adjusting the fixed position of the snap-fit ​​blocks, thereby flexibly adapting to different specifications of vertical test cylinders and friction devices, and ensuring that the guide rods are always reliably limited in the vertical direction during movement, preventing the glass plate from jumping or tilting under the action of frictional resistance.

[0028] Preferably, two small downward-extending support pillars are symmetrically arranged on the front and rear sides of the piston rod at the lower end of the cylinder body of the vertical test cylinder. The lower ends of the small support pillars are fixedly connected to the guide rod to enhance the structural rigidity of the glass sheet when subjected to lateral frictional resistance.

[0029] By adopting the above structure, two small downward-extending support pillars are symmetrically added to the lower end of the vertical test cylinder body and on both sides of the piston rod. The lower ends of the small support pillars are fixedly connected to the guide rod. Based on the original single-point force transmission path of the piston rod, two rigid support points are added on both sides to form a stable three-point support structure. When the glass plate is subjected to lateral frictional resistance within the sealing strip, this resistance will be transmitted to the vertical test cylinder through the piston rod. The symmetrical small support pillar structure can effectively resist the torsional torque generated therefrom, significantly enhancing the structural rigidity and torsional resistance of the vertical test cylinder and the entire friction device, avoiding load fluctuations caused by structural deformation, and effectively ensuring the accuracy and repeatability of test data.

[0030] Preferably, the adjusting slider is a hinge structure, and one side of the adjusting slider is connected to the cylinder body of the transverse test cylinder. The adjusting slider can slide up and down along the cylinder height adjustment groove and be fixed by bolts to adapt to the testing requirements of different height specifications.

[0031] With the above structure, the adjusting slider is designed as a hinge structure. One side is connected to the cylinder body of the transverse test cylinder, and the other side can slide up and down in the cylinder height adjustment groove and be locked with bolts. The hinge structure allows the cylinder body of the transverse test cylinder to swing or adjust freely at a small angle in the vertical plane. This not only compensates for minor parallelism errors that may exist during installation and processing and avoids uneven wear between the piston rod and the sealing ring, but also adapts to slight angle changes between the cylinder's line of action and the plane of motion caused by height adjustment. Through sliding adjustment and bolt locking, stepless adjustment and reliable fixation of the transverse test cylinder height can be achieved, meeting the diverse needs of different height specifications of sealing strips or different test standards for the point of application of driving force, and improving the versatility and debugging convenience of the equipment.

[0032] Preferably, a compressed air pressure regulating valve is fixed at the upper end of the cylinder support frame. The compressed air pressure regulating valve is connected to the vertical test cylinder through a spiral air pipe and is used to precisely regulate the positive pressure applied by the glass plate to the sealing strip under test.

[0033] Using the above structure, a compressed air pressure regulating valve is integrated and installed on the upper end of the cylinder support frame, and connected to the vertical test cylinder of the friction device through a spiral air pipe. The compressed air pressure regulating valve, as an air source processing element, can precisely regulate and stabilize the output of compressed air from the air source. The spiral air pipe has good extensibility and flexibility, adapting to the positional changes of the vertical test cylinder during reciprocating motion. By adjusting the compressed air pressure regulating valve, the operator can conveniently and accurately control the working pressure of the vertical test cylinder, thereby achieving precise control of the positive pressure applied to the tested sealing strip by the glass plate.

[0034] Preferably, a two-position five-way solenoid valve is fixedly installed on the mounting platform. The two-position five-way solenoid valve is located between the cylinder support frame and the guide frame. The upper end of the two-position five-way solenoid valve is connected to two first air pipes, which are respectively connected to the inlet and outlet of the transverse test cylinder. The front end of the two-position five-way solenoid valve is connected to a compressed air inlet pipe.

[0035] Using the above structure, a two-position five-way solenoid valve is fixedly installed on the mounting platform between the cylinder support frame and the guide frame. It is connected to the front and rear air inlets and outlets of the transverse test cylinder through two first air pipes. As the core of the air circuit control, the two-position five-way solenoid valve can quickly switch the flow direction of compressed air according to the electrical signal, thereby accurately controlling the extension and retraction of the piston rod of the transverse test cylinder. This realizes the automated cycle of the reciprocating motion of the friction device without manual intervention to change direction. With the control system, the frequency, stroke and number of cycles of the reciprocating motion can be easily set, which not only greatly improves the testing efficiency, but also ensures a high degree of consistency and standardization of the motion rhythm during batch testing or long-term durability testing.

[0036] Preferably, a pressure gauge is provided on the left side of the compressed air pressure regulating valve, and a pressure adjustment knob is provided on the top. The compressed air pressure regulating valve is connected to the compressed air inlet pipe through a second air pipe.

[0037] With the above structure, the compressed air pressure regulating valve is equipped with a pressure gauge and a pressure adjustment knob, and is connected to the main compressed air inlet pipeline through a second air pipe. The pressure gauge provides operators with real-time, visual pressure feedback, facilitating accurate monitoring of the system pressure status before and during testing. The pressure adjustment knob provides a convenient and precise means of setting the pressure. Operators can precisely adjust the pressure to the target value by rotating the knob according to the test plan requirements. The pressure regulating valve is connected in parallel to the main air circuit through the second air pipe to ensure that the vertical test cylinder can obtain a stable, clean, and pressure-controllable supply of compressed air.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows: The vehicle window glass guide groove sealing strip resistance simulation test system adopting the above technical solution integrates a linkage clamping mechanism of "Z-shaped hinge + sliding bar + tension knob" to continuously, synchronously, and lockably adjust the distance between the two side walls of the sealing strip during the reciprocating test. This allows for a realistic simulation of different compression states of the sealing strip by the door sheet metal groove, solving the industry pain point of lack of clamping force control. At the same time, the system combines the vertical test cylinder and the horizontal test cylinder to form an integrated transmission of "horizontal drive + vertical loading", and is supplemented by a rolling limit guide structure composed of guide rod and adjusting guide rod, as well as rigid support of small pillars. This significantly improves the contact stability and torsional stiffness of the friction device in high-speed reciprocating motion, avoiding the swaying and jumping of the glass. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure in the working state of the present invention;

[0041] Figure 3 for Figure 2 The left view;

[0042] Figure 4 for Figure 2 The front view;

[0043] Figure 5 for Figure 4 Sectional view along AA;

[0044] Figure 6 This is a schematic diagram of a hinge joint. Detailed Implementation

[0045] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, the vehicle window glass guide groove sealing strip resistance simulation test system includes a mounting platform 1, on which a transverse test cylinder 16 and a guide frame 7 are mounted, and a friction device 22 is mounted on the guide frame 7. A glass plate 14 is provided at the bottom of the friction device 22.

[0047] A sealing strip mounting groove 25 for fixing the sealing strip to be tested is provided on the mounting platform 1 directly below the glass plate 14. The glass plate 14 is embedded in the sealing strip to be tested, and the transverse test cylinder 16 drives the friction device 22 to move the glass plate 14 back and forth.

[0048] A lateral force sensor 31 is fitted onto the piston rod of the lateral test cylinder 16 to detect the resistance encountered during lateral reciprocating motion.

[0049] A vertical test cylinder 13 capable of driving the glass plate 14 to move vertically is integrated on the friction device 22. A vertical force sensor 32 is sleeved on the piston rod at the lower end of the vertical test cylinder 13 to detect the resistance encountered during vertical reciprocating motion.

[0050] The testing platform uses a rectangular mounting surface 1 as the mounting base for the entire device. A sealing strip mounting groove 25 is located on the right end of the upper surface of the mounting surface 1, and a tightening / loosening knob 26 is located on one side of the sealing strip mounting groove 25. Sliding strips 27 are arranged opposite each other on both sides inside the sealing strip mounting groove 25, and the sealing strip to be tested is mounted above the sliding strips 27. A Z-shaped hinge joint 28 is provided between the sliding strips 27, with the joints of the hinge joint 28 respectively engaging with the corresponding sliding strips 27 and slidingly engaging with them. The tightening / loosening knob 26 is drively connected to the hinge joint 28; when tightened, it drives the hinge joint 28 to straighten, bringing the two sliding strips 27 closer together, causing the sealing strip to clamp the glass plate 14; when loosened, the hinge joint 28 returns to its extended state, pulling the two sliding strips 27 further apart. With the above structure, the operator only needs to rotate the tension knob 26 to achieve continuous, synchronous, and stepless adjustment of the distance between the two side walls of the sealing strip, which truly simulates the different compression states of the sealing strip by the door sheet metal groove.

[0051] The sliding bar 27 has a sliding groove 29 on the side near the hinge joint 28. The internal space of the sliding groove 29 is larger than its opening width, forming a "T" shape. A sliding block 30 protrudes outward at the joint of the hinge joint 28, and the sliding block 30 engages with the corresponding sliding groove 29 and can slide along the groove 29. This structure ensures that the joint of the hinge joint 28 maintains a stable mechanical connection with the sliding bar 27 during expansion and contraction, preventing disengagement or jamming. It also withstands a certain eccentric load moment, ensuring the parallelism and synchronization of the two sliding bars 27 during force application and movement.

[0052] At the left end of the mounting platform 1, a cylinder support frame 2 is vertically fixed. The cylinder support frame 2 is a vertically fixed support plate, which is fastened to the mounting platform 1 by the flange at its bottom and multiple high-strength bolts to ensure its load-bearing rigidity.

[0053] A cylinder height adjustment groove 3 is formed along the vertical direction on the cylinder support frame 2. The cylinder height adjustment groove 3 is a keyway-shaped through groove, and an adjustment slider 4 is installed inside it. The adjustment slider 4 has a hinge structure. One side of the adjustment slider 4 is connected to the cylinder body of the transverse test cylinder 16, and the other side can slide up and down along the cylinder height adjustment groove 3. The adjustment slider 4 is provided with at least one radial locking bolt. When the bolt is tightened, the adjustment slider 4 can be firmly pressed against the side wall of the cylinder height adjustment groove 3, realizing its locking at any height to adapt to the testing requirements of different height specifications.

[0054] The transverse test cylinder 16 is arranged horizontally, and the tail of its cylinder is connected to the hinge shaft of the adjusting slider 4. By loosening the locking bolt and sliding the adjusting slider 4 up and down, the initial installation height of the transverse test cylinder 16 can be adjusted steplessly. The adjustment range is determined by the length of the cylinder height adjustment groove 3. After adjustment, the bolt is tightened again.

[0055] A lateral force sensor 31 is fitted onto the piston rod of the lateral test cylinder 16. The lateral force sensor 31 is used to detect and output the frictional resistance data of the glass plate 14 when it moves horizontally back and forth within the sealing strip in real time.

[0056] A compressed air pressure regulating valve 5 is fixed to the upper end of the cylinder support frame 2. A pressure gauge 51 is installed on the left side of the compressed air pressure regulating valve 5, and a pressure adjustment knob 52 is installed above it. The compressed air pressure regulating valve 5 is connected to the vertical test cylinder 13 in the friction device 22 through a spiral air pipe 6, and is used to precisely control the positive pressure applied by the glass plate 14 to the sealing strip under test. At the same time, the compressed air pressure regulating valve 5 is connected to the compressed air inlet pipe 23 through a second air pipe 24.

[0057] The guide frame 7 includes four rectangular support guide plates 71 arranged on the right side of the mounting platform 1. The sealing strip mounting groove 25 is located between the front and rear support guide plates 71. Each support guide plate 71 has a limiting groove 72 along its vertical direction. The limiting grooves 72 of the two front support guide plates 71 are aligned opposite each other, as are the limiting grooves 72 of the two rear support guide plates 71.

[0058] The guiding and limiting mechanism 8 includes two adjusting guide rods 9 arranged parallel to each other between the two front supporting guide plates 71 and two adjusting guide rods 9 between the two rear supporting guide plates 71. The two adjusting guide rods 9 are parallel in the vertical direction and have a gap between them. Both ends of each adjusting guide rod 9 extend into the limiting groove 72 of the adjacent supporting guide plate 71 and are fixed by a snap-fit ​​block 10. The snap-fit ​​block 10 is usually a split clamping block, which is fastened to the adjusting guide rod 9 by bolts, and its outer side is fastened to the supporting guide plate 71 by another set of bolts. By loosening the bolts on the supporting guide plate 71, the height position of the adjusting guide rod 9 in the limiting groove 72 can be adjusted up and down as a whole, thereby accurately setting the height and level of the guide gap formed between the two adjusting guide rods 9. After adjustment, all bolts are tightened, and the entire track frame is rigidly fixed.

[0059] The friction device 22 also includes a vertical test cylinder 13, which is vertically downward. The outer end of its piston rod 18 passes through a sleeve 12 and is fixedly connected to a support rod 15. The support rod 15 is horizontally positioned directly above the sealing strip mounting groove 25. Both ends of the support rod 15 are bent downward and fixedly embedded with glass plate clamping grooves 17. The glass plate 14 is detachably installed in the glass plate clamping grooves 17. The downward bending structure of the support rod 15 allows the glass plate clamping grooves 17 on both sides to symmetrically clamp the glass plate 14, ensuring that the glass plate 14 is vertically downward and directly facing the sealing strip groove, forming a symmetrical and balanced loading structure. This avoids uneven loading caused by unilateral force and provides a stable base for the installation of the vertical force sensor 32. The glass plate 14 can be selected according to the testing requirements, using glass of the same material as real car window glass, or a wear-resistant sheet with sandpaper of a specific grit adhering to its surface, to simulate the friction interface under different working conditions. Its shape must precisely match the contour of the contact surface inside the groove of the sealing strip to ensure uniform contact;

[0060] A vertical force sensor 32 is fitted onto the piston rod 18 at the lower end of the vertical test cylinder 13. The vertical force sensor 32 is used to detect and output the resistance data experienced by the glass plate 14 when it moves vertically within the sealing strip in real time.

[0061] The sleeve 12 is a hollow cylinder, with a piston rod 18 passing through its inner hole via a bushing or sliding bearing, forming a precision sliding pair. The outer end of the piston rod 18 of the transverse test cylinder 16 is rigidly connected to the left end of the sleeve 12 (e.g., by threaded connection or welding). The sleeve 12 is mounted on the guide frame 7 via the guide limiting mechanism 8. Specifically, guide rods 11 are connected to the front and rear side walls of the sleeve 12, and the outer end of the guide rods 11 extends into the guide gap formed between the two adjusting guide rollers 9 on the front and rear sides to achieve rolling support and vertical limiting. When the sleeve 12 moves horizontally, the guide rods 11 roll along the adjusting guide rollers 9, converting sliding friction into rolling friction, which greatly reduces the motion resistance.

[0062] Two small, downward-extending support columns 21 are symmetrically arranged on both sides of the piston rod 18 at the lower end of the cylinder body of the vertical test cylinder 13. Each small support column 21 is a solid, short steel column, with its upper end fixed to the vertical test cylinder 13 by screws and its lower end fixedly connected to the guide rod 11. Thus, the vertical test cylinder 13, piston rod 18, two small support columns 21, and guide rod 11 together form a stable, three-dimensional rigid connection, enhancing the structural rigidity of the glass plate 14 when subjected to lateral frictional resistance.

[0063] Therefore, when the piston rod 18 of the lateral test cylinder 16 extends, the thrust is transmitted to the entire friction device 22 through the sleeve 12, driving the vertical test cylinder 13, piston rod 18, and glass plate 14 to move horizontally to the right; when the piston rod 18 of the lateral test cylinder 16 retracts, the pull force is transmitted to the sleeve 12, causing the entire moving assembly to return to the left. During the horizontal movement, the vertical test cylinder 13 continuously applies downward pressure through its piston rod 18, ensuring that the glass plate 14 is always tightly fitted against the inner surface of the groove of the sealing strip with a set positive pressure. The sliding fit between the sleeve 12 and the piston rod 18 allows the piston rod 18 to move independently in the vertical direction, forming an integrated transmission structure of "horizontal drive + vertical loading," with a direct force transmission path and reduced intermediate transmission gaps.

[0064] A two-position five-way solenoid valve 19 is fixedly installed on the mounting platform 1. This valve is located between the cylinder support frame 2 and the guide frame 7 for easy wiring and operation. Two first air pipes 20 are connected to the upper end of the two-position five-way solenoid valve 19, respectively connecting to the inlet and outlet ports of the transverse test cylinder 16. A compressed air inlet pipe 23 is connected to the front end of the two-position five-way solenoid valve 19. As the core of the air circuit control, the two-position five-way solenoid valve 19 can quickly switch the flow direction of compressed air according to electrical signals, thereby precisely controlling the extension and retraction of the piston rod of the transverse test cylinder 16.

[0065] Before testing, the sealing strip to be tested is installed above the sliding strip 27 in the sealing strip mounting groove 25. According to the test requirements, the tension knob 26 is rotated, and the distance between the two sliding strips 27 is adjusted by the extension and retraction of the hinge 28, so that the sealing strip applies the required initial clamping force to the glass plate 14. Then, the locking bolt of the adjusting slider 4 is loosened, and the height of the transverse test cylinder 16 is adjusted along the cylinder height adjusting groove 3, so that the glass plate 14 is accurately aligned with the sealing strip groove, and then locked. Next, the fixing bolt of the snap-fit ​​block 10 is loosened, and the height of the adjusting guide rod 9 in the limiting groove 72 is adjusted up and down, so that the guide rod 11 is smoothly engaged in the guide gap between the upper and lower adjusting guide rods 9, and then the snap-fit ​​block 10 is locked. Finally, the output pressure of the vertical test cylinder 13 is set by the pressure adjusting knob 52, and the pressure value is read by the pressure gauge 51.

[0066] During testing, the two-position five-way solenoid valve 19 is activated. Compressed air enters the transverse test cylinder 16 through the compressed air inlet pipe 23, the two-position five-way solenoid valve 19, and the first air pipe 20, driving the piston rod to extend and move the entire friction device 22 horizontally via the sleeve 12. The guide rod 11 rolls along the adjusting guide roller 9 to ensure smooth movement. Simultaneously, the vertical test cylinder 13 continuously applies a set pressure downwards through the piston rod 18, causing the glass sheet 14 to tightly adhere to the surface of the sealing strip. During the horizontal reciprocating motion, the lateral force sensor 31, mounted on the piston rod of the lateral test cylinder 16, detects in real time the frictional resistance experienced by the glass sheet 14 as it slides horizontally within the sealing strip, simulating the resistance of the sealing strips on both sides of the car window when the window glass moves up and down. When a vertical resistance test is required, the vertical test cylinder 13 drives the glass sheet 14 to move up and down within the sealing strip. The vertical force sensor 32, mounted on the piston rod at the lower end of the vertical test cylinder 13, detects in real time the resistance experienced during vertical movement, simulating the resistance of the sealing strips at the upper and lower ends of the car window when the window glass moves up and down. The two sensors transmit the resistance data to the data acquisition system in real time for subsequent analysis and evaluation. When the movement reaches the end of the stroke, the two-position five-way solenoid valve 19 reverses, driving the friction device 22 back, completing one reciprocating cycle.

[0067] After the test is completed, rotate the tension knob 26 in the opposite direction to restore the hinge knot 28 to the unfolded state and move the two sliding strips 27 away from each other, then you can remove the sealing strip.

[0068] The two-position five-way solenoid valve 19 automatically controls the reciprocating motion of the transverse test cylinder 16 according to a preset frequency and number of cycles. The friction device 22, guided by the guide and limit mechanism 8, continuously performs reciprocating friction tests on the sealing strip. During the test, the transverse force sensor 31 and the vertical force sensor 32 can record data such as transverse friction resistance, vertical resistance, motion stability, and sealing strip wear, as needed. After the test is completed, the system automatically stops, and the sealing strip is removed for subsequent testing and analysis to evaluate its wear resistance and resistance characteristics.

[0069] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0070] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] 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.

[0072] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A simulation test system for the resistance of a sealing strip in a car window glass guide groove, comprising a mounting platform (1), characterized in that: A transverse test cylinder (16) and a guide frame (7) are installed on the mounting platform (1). A friction device (22) is installed on the guide frame (7). A glass plate (14) is provided at the bottom of the friction device (22). A sealing strip mounting groove (25) for fixing the sealing strip to be tested is provided on the mounting platform (1) directly below the glass plate (14). The glass plate (14) is embedded in the sealing strip to be tested. The transverse test cylinder (16) drives the friction device (22) to move the glass plate (14) back and forth. A lateral force sensor (31) is fitted onto the piston rod of the lateral test cylinder (16) to detect the resistance encountered during lateral reciprocating motion; A vertical test cylinder (13) capable of driving the glass plate (14) to move vertically is integrated on the friction device (22). A vertical force sensor (32) is sleeved on the piston rod at the lower end of the vertical test cylinder (13) to detect the resistance encountered during vertical reciprocating motion.

2. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 1, characterized in that: The sealing strip mounting groove (25) has a tightening knob (26) on one side. Sliding strips (27) are arranged opposite to each other on both sides inside the sealing strip mounting groove (25). The sealing strip to be tested is installed above the sliding strips (27). A hinge knot (28) in the shape of a "Z" is provided between the sliding strips (27). The joints of the hinge knot (28) are respectively engaged in the corresponding sliding strips (27) and slide with the sliding strips (27). The tightening knob (26) is connected to the hinge (28) in a transmission manner. When tightened, it drives the hinge (28) to straighten to pull the two sliding bars closer together, so that the sealing strip clamps the glass sheet (14). When loosened, the hinge (28) returns to the unfolded state to pull the two sliding bars (27) further apart. The sliding bar (27) has a sliding groove (29) on the side near the hinge (28), and the internal space of the sliding groove (29) is larger than its opening width; The hinge joint (28) has a sliding block (30) protruding outward at the joint. The sliding block (30) is inserted into the corresponding sliding groove (29) and can slide along the sliding groove (29) to achieve sliding engagement between the hinge joint (28) and the sliding bar (27).

3. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 1, characterized in that: A cylinder support frame (2) is installed on the mounting platform (1). The cylinder support frame (2) is a support plate that is vertically fixed on the mounting platform (1) and close to the left end of the mounting platform (1). A cylinder height adjustment groove (3) is opened on the cylinder support frame (2) along the vertical direction. The outer end of the cylinder body of the transverse test cylinder (16) is connected to the adjustment slider (4) installed in the cylinder height adjustment groove (3) to adjust the initial height of the transverse test cylinder (16). The guide frame (7) includes four rectangular support guide plates (71) arranged on the right side of the mounting platform (1). The sealing strip mounting groove (25) is located between the support guide plates (71) on the front and rear sides. The friction device (22) is installed between the four support guide plates (71) via the guide limiting mechanism (8).

4. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 2, characterized in that: The friction device (22) also includes a vertical test cylinder (13), which is set vertically downward. The outer end of its piston rod (18) passes through a sleeve (12) and is fixedly connected to a support rod (15). The support rod (15) is set horizontally above the sealing strip mounting groove (25). The two ends of the support rod (15) are bent downward and fixedly embedded with a glass plate clamping groove (17). The glass plate (14) is detachably installed in the glass plate clamping groove (17). The sleeve (12) is mounted on the guide frame (7) via the guide limiting mechanism (8), and the outer end of the piston rod of the transverse test cylinder (16) is connected to the sleeve (12) to drive the entire friction device (22) to reciprocate horizontally.

5. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 2, characterized in that: All of the support guide plates (71) have a limiting groove (72) along the vertical direction. The limiting grooves (72) of the two front support guide plates (71) are set opposite each other, and the limiting grooves (72) of the two rear support guide plates (71) are set opposite each other. The guide limiting mechanism (8) includes two adjusting guide rods (9) arranged in parallel between the two front support guide plates (71) and two adjusting guide rods (9) between the two rear support guide plates (71). Both ends of the adjusting guide rods (9) extend into the limiting grooves (72) of the adjacent support guide plates (71) and are fixed by snap-fit ​​blocks (10). The gap height between the two adjusting guide rods (9) can be changed by adjusting the fixed position of the snap-fit ​​blocks (10). The sleeve (12) is connected to the front and rear side walls by guide rods (11), and the outer end of the guide rods (11) extends into the guide gap formed between the two adjusting guide rods (9) on the front and rear sides to achieve rolling support and vertical positioning.

6. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 1, characterized in that: The piston rod at the lower end of the vertical test cylinder (13) has two small support pillars (21) extending downwards symmetrically arranged on the front and rear sides. The lower end of the small support pillars (21) is fixedly connected to the guide rod (11) to enhance the structural rigidity of the glass plate (14) when subjected to lateral frictional resistance.

7. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 5, characterized in that: The adjusting slider (4) is a hinge structure. One side of the adjusting slider (4) is connected to the cylinder body of the transverse test cylinder (16). The adjusting slider (4) can slide up and down along the cylinder height adjustment groove (3) and be fixed by bolts to adapt to the test requirements of different height specifications.

8. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 1, characterized in that: The upper end of the cylinder support frame (2) is fixed with a compressed air pressure regulating valve (5), which is connected to the vertical test cylinder (13) through a spiral air pipe (6) to precisely regulate the positive pressure applied by the glass plate (14) to the sealing strip under test.

9. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 1, characterized in that: A two-position five-way solenoid valve (19) is fixedly installed on the mounting platform (1). The two-position five-way solenoid valve (19) is located between the cylinder support frame (2) and the guide frame (7). The upper end of the two-position five-way solenoid valve (19) is connected to two first air pipes (20). The two first air pipes (20) are respectively connected to the inlet and outlet of the transverse test cylinder (16). The front end of the two-position five-way solenoid valve (19) is connected to a compressed air inlet pipe (23).

10. The resistance simulation test system for the guide groove sealing strip of the vehicle window as described in claim 1, characterized in that: A pressure gauge (51) is provided on the left side of the compressed air pressure regulating valve (5), and a pressure adjustment knob (52) is provided on the top. The compressed air pressure regulating valve (5) is connected to the compressed air inlet pipe (23) through the second air pipe (24).

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