Intelligent final inspection testing machine for glass lifter

Abstract

The present application relates to the technical field of vehicle part testing, in particular to an intelligent final inspection testing machine for a glass lifter, comprising an adjusting tool, a load mechanism, a connecting mechanism and a fixing mechanism; the adjusting tool is connected with a tool loading plate; the load mechanism is installed at the lower part of a testing table; the connecting mechanism is connected with the load mechanism; the fixing mechanism is connected with the adjusting tool; the arc line movement of a glass bracket is decomposed into the vertical direction, the front and back horizontal direction and the left and right horizontal direction through the connecting mechanism, so that the sliding distance and sliding speed of the load block are the same as those of the glass bracket; only the load block needs to be detected by using a displacement sensor, and the displacement sensor does not need to be debugged and calibrated; the problem that the glass bracket movement of the rope wheel type glass lifter is arc line movement, the load and the glass bracket need to be connected by using a rope, and the rope connection of the load causes the load to jump under the inertial force and further causes the test result to be inaccurate is solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts testing technology, and specifically to an intelligent final inspection testing machine for window regulators. Background Technology

[0002] Currently, all new energy vehicles are equipped with electronically controlled window regulators. An electronically controlled window regulator is a device that uses a motor to control the raising and lowering of car windows. It mainly includes single-arm, double-arm, and cross-arm types. Before the window regulator is installed on the car door, the window regulator assembly needs to be tested, mainly including current testing, lifting bracket stopping position testing, cable overlap and tension testing.

[0003] Currently, the testing of window regulator assemblies mainly involves manual loading. The finished regulator is placed on a test fixture, and the threads on the regulator are first inspected. Then, the regulator assembly is automatically stopped, and the tolerance of the bracket's stopping position is automatically determined. Finally, the current value is collected during the load rise process and a curve is generated. The software judges whether the current value range in any interval meets the requirements. After all tests are passed, the product is qualified for shipment. When testing window regulators of different car brands, because the motor speed and bracket stopping position of different specifications of window regulators are different, after changing the fixing fixture, it is also necessary to calibrate the position of the stopping position sensor to avoid inaccurate test results and reduced testing efficiency. Existing technology has proposed a good solution to this problem, such as a window regulator glass bracket delivery position positioning fixture with patent publication number CN216380994U. This fixture achieves indirect detection of the glass bracket delivery position through the cooperation of a linear guide carriage and a positioning unit. The load block can slide along the guide rail and is linked to the window bracket of the regulator through a rope. When the glass bracket is raised or lowered, the cable drives the load block to move synchronously on the guide rail. The linear displacement sensor calculates the actual position of the glass bracket by monitoring the movement trajectory of the load block. After receiving the sensor signal, the PLC controller regulates the start and stop of the motor to accurately lock the target position of the bracket. It can adapt to the glass bracket positioning requirements of various types of lifters, which not only enhances the adaptability of the tooling equipment, but also improves the controllability and accuracy of the positioning process.

[0004] While existing technologies have solved the problem of reduced detection efficiency due to the need to calibrate position acquisition sensors when detecting the stopping position of window regulator brackets of different specifications, the following issues still exist: Most vehicle windows have curved surfaces, so cable-driven window regulators are generally used to adapt to the glass's movement path. In this case, the window bracket does not move vertically. Therefore, during final inspection, the load and the window bracket are mainly connected by flexible ropes to accommodate the different movement paths of window regulators of different specifications. If the load displacement and speed are directly tested, the load will continue to move upward a short distance after reaching the stopping position due to inertia before falling back down. The calculated speed and displacement will be inaccurate, leading to deviations in the final inspection results and a decrease in the yield rate.

[0005] In view of the above, in order to overcome the above technical problems, the present invention designs an intelligent final inspection test machine for glass lifters. Summary of the Invention

[0006] This invention provides an intelligent final inspection testing machine for glass lifters. It solves the problem that the glass support of a rope-driven glass lifter moves in an arc, requiring a rope to connect the load and the glass support. However, this rope connection causes the load to bounce under inertial force, leading to inaccurate test results. By using a connecting mechanism, the arc motion of the glass support is decomposed into vertical, front-back horizontal, and left-right horizontal directions. This ensures that the sliding distance and speed of the load block are the same as those of the glass support. Only a displacement sensor is needed to detect the load block, eliminating the need for sensor calibration and improving testing efficiency and accuracy. During testing, the telescopic linkage extends and retracts according to the glass support's movement trajectory and dynamically matches changes in motor speed, altering the clamping force on the glass lifter to ensure its stability during testing, thereby improving the accuracy of the test results.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An intelligent final inspection testing machine for a glass lifter includes a test platform and a loading plate; it also includes an adjusting fixture, a load mechanism, a connecting mechanism, and a fixing mechanism; the adjusting fixture is connected to the loading plate; the load mechanism is installed at the lower part of the test platform; the connecting mechanism is connected to the load mechanism, and during the final inspection test, the glass support of the glass lifter moves in an arc and drives the load mechanism to rise to the same height through the connecting mechanism; the fixing mechanism is connected to the adjusting fixture, and during the rise of the glass support, it drives the connecting mechanism to extend and retract, and when the connecting mechanism extends and retracts, it squeezes the adjusting fixture through the glass lifter, and the adjusting fixture is clamped by pressure to the glass lifter.

[0009] Preferably, the adjusting fixture includes a vertical slide groove, a vertical slider, and a horizontal slider; four sets of vertical slide grooves are symmetrically arranged on the upper and lower parts, as well as the left and right parts of the loading plate; the vertical slider is slidably installed in the vertical slide groove, and a horizontal slide groove is provided on the vertical slider; the horizontal slider is slidably installed in the horizontal slide groove; the fixing mechanism is connected to the horizontal slider.

[0010] In the above scheme, the loading plate is divided into four quadrants. The vertical slider slides vertically in the vertical groove, and the horizontal slider slides in the horizontal groove on the vertical slider. This allows each fixing mechanism in the four quadrants to be moved to the desired position, thereby realizing the fixing of glass lifters of different sizes and specifications.

[0011] Preferably, both the vertical slide groove and the horizontal slide groove are provided with a snap-fit ​​groove; the vertical slider also includes a slider body, a slider groove, a snap-fit ​​slider, and a snap-fit ​​spring; the slider body is slidably installed in the vertical slide groove; the slider groove is formed on the slider body; the snap-fit ​​slider is slidably installed in the slider groove; the snap-fit ​​spring is connected between the slider groove and the snap-fit ​​slider; the structure of the horizontal slider is the same as that of the vertical slider.

[0012] In the above scheme, pressing down the locking slider on the vertical slider allows the vertical slider to move freely in the vertical slide groove, and pressing down the locking slider on the horizontal slider allows the horizontal slider to move freely in the horizontal slide groove. According to the specifications of different types of glass lifters, the vertical slider and the horizontal slider can be adjusted to the corresponding positions. At this time, the locking block will automatically pop out under the action of the locking spring to complete the limiting work.

[0013] Preferably, the fixing mechanism includes an inner shaft, an outer sleeve, a clamping block, and a retraction spring; the inner shaft is connected to a horizontal slider, and a clamping groove and a pressure-shifting groove are arranged in a circumferential array on the inner shaft; the outer sleeve is slidably mounted on the pressure-shifting groove; the clamping block is slidably mounted in the clamping groove; and the retraction spring is connected between two clamping blocks that are symmetrical about the axis of the inner shaft.

[0014] In the above scheme, after the outer sleeve is subjected to pressure, it will move towards the horizontal slider and exert a squeezing force on the clamping block, causing the clamping block to extend from the extended clamping groove and press against the inner wall of the positioning hole of the glass lifter, so that the glass lifter is fixed and the fixing efficiency will be higher. The clamping work is completed quickly when the glass lifter is pressed into the inner shaft, and the correct alignment of the glass lifter can be ensured by the circumferential array of clamping blocks.

[0015] Preferably, the outer sleeve includes an outer ring body, a connecting slider, and a wedge-shaped pressure rod; the outer ring body is slidably mounted on the inner shaft body; the connecting slider is connected to the outer ring body and slidably mounted in the pressure groove; the wedge-shaped pressure rod is connected to the connecting slider; and a clamping wedge surface is provided on the inner wall of the clamping block.

[0016] In the above scheme, after the clamping block clamps the glass lifter, the wedge pressure rod will wedge tightly with the clamping wedge surface of the clamping block. Under the action of the wedge force, the clamping block and the outer sleeve will be in a stationary state. The thrust spring generates a thrust on the inner rod and the connecting bracket, which will be transmitted to the glass lifter, thereby ensuring that the clamping state between the clamping block and the outer sleeve will not be loosened, and the clamping force will be dynamically changed in the clamping state to match the changing trend of the motor load.

[0017] Preferably, the load mechanism includes a load chute, a load block, and a displacement sensor; the load chute is located at the lower part of the test bench; the load block is slidably mounted on the load chute, and a connecting rod chute is provided on the load block; the displacement sensor is connected to the lowermost part of the load chute.

[0018] In the above solution, the sliding distance and sliding speed of the load block are used instead of directly detecting the glass bracket, thereby avoiding the need to change the position of the displacement sensor when detecting glass lifters of different specifications. Furthermore, the displacement sensor does not need to be calibrated, which can improve detection efficiency.

[0019] Preferably, the connecting mechanism includes a rigid connecting rod, a telescopic connecting rod, and a connecting plate; the rigid connecting rod includes a connecting rod body, a sliding bearing, and an anti-deviation groove; the lower end of the connecting rod body is slidably installed in the connecting rod groove; the sliding bearing is installed at the lower end of the connecting rod body; the anti-deviation groove is formed on the connecting rod body; the telescopic connecting rod is connected to the rigid connecting rod; and the connecting plate is connected to the telescopic connecting rod.

[0020] In the above scheme, since the glass bracket moves in an arc on the track of the glass lifter, ropes are needed to connect the glass bracket and the load block to accommodate the arc movement. Here, rigid connecting rods and telescopic connecting rods are used to decompose the arc movement into the vertical, front-back horizontal, and left-right horizontal directions. The distance the glass bracket moves in the vertical direction is equal to the rising distance of the load block. The distance the glass bracket moves in the front-back horizontal direction is equal to the extension length of the telescopic connecting rod. The distance the glass bracket moves in the left-right horizontal direction is equal to the distance the rigid connecting rod slides in the connecting rod groove. At this time, the stopping position of the glass bracket can be obtained by directly measuring the rising distance of the load block using a displacement sensor, without the need to adjust the position of the displacement sensor. Moreover, the rigid connecting rod can ensure that the load block will not jump due to inertial force, thus ensuring the accuracy of the speed test.

[0021] Preferably, the telescopic link includes an outer rod, an inner compression rod, and a thrust spring; the outer rod is connected to a rigid link; the inner compression rod is slidably installed inside the outer rod; and the thrust spring is connected between the inner compression rod and the outer rod.

[0022] In the above scheme, before testing, the connecting plate is clamped into the glass bracket. Under the action of the thrust spring, the connecting plate will generate a thrust on the glass lifter in the direction of the loading plate. Under the action of this thrust, the glass lifter will tend to move towards the outer sleeve. The pressure on the outer sleeve will cause the clamping block to tend to move radially, increasing the clamping force on the glass lifter, thereby ensuring that the glass lifter is more stable. Moreover, during the sliding process of the glass bracket, the glass bracket is at its maximum thrust, i.e., the maximum clamping force, when it is in the middle position of the arc guide rail. This can match the acceleration and deceleration process of the motor starting and stopping, ensuring the stability of the glass lifter during the test, thereby improving the accuracy of the test results.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. Compared to existing glass lifter final inspection equipment, this invention decomposes the arc motion of the glass support into three degrees of freedom through rigid and telescopic links. The rigid link can simultaneously achieve vertical and horizontal movement, while the telescopic link can achieve forward and backward horizontal movement. At this time, the distance the load block rises driven by the rigid link will be exactly equal to the distance the glass support rises. Only the displacement sensor needs to be used to test the rising distance of the load block to obtain the stopping position and movement speed. Furthermore, when testing with different specifications of glass lifters, there is no need to adjust and calibrate the position of the displacement sensor, which improves the testing efficiency and the accuracy of the test results.

[0025] 2. This invention, by setting up an adjustment fixture, and through the sliding and locking action of the vertical and horizontal sliders in each of the four quadrants of the loading plate, can adapt to various types and specifications of glass lifters. Compared with directly replacing the loading plate, it is more efficient and less costly. Furthermore, a fixing mechanism is set on the horizontal slider, which allows the clamping block to automatically extend and automatically align and tighten the positioning hole of the glass lifter when it is pressed onto the inner shaft. During this process, the wedge pressure rod will wedge tightly with the clamping wedge surface of the clamping block, enabling the glass lifter to be quickly fixed. At the same time, the automatic alignment and tightening action can automatically correct the misalignment generated during the fixing process, further improving the efficiency and accuracy of the inspection and installation.

[0026] 3. By incorporating a thrust spring, this invention creates a thrust force on the glass lifter, directed towards the loading plate, through the connecting support plate. This thrust force causes the glass lifter to move towards the outer casing, while the pressure on the outer casing causes the clamping block to move radially, increasing the clamping force on the glass lifter and ensuring its stable fixation. Furthermore, during the sliding of the glass support, the invention matches the acceleration and deceleration processes of the motor's start and stop, ensuring the stability of the glass lifter during testing and thus improving the accuracy of the test results. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is an overall structural diagram of the present invention;

[0029] Figure 2 This is a cross-sectional view of the present invention;

[0030] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0031] Figure 4 This is a cross-sectional view of the vertical slider in the snap-fit ​​state of the present invention;

[0032] Figure 5 This is a schematic diagram showing the connection relationship between the vertical slider and the snap-fit ​​slider of the present invention;

[0033] Figure 6 This is an exploded view of the fixing mechanism of the present invention;

[0034] Figure 7 This is a cross-sectional view of the fixing mechanism of the present invention;

[0035] Figure 8 This is a cross-sectional view of the connection mechanism of the present invention;

[0036] Figure 9 for Figure 8 Enlarged view of the structure at point B in the middle;

[0037] In the diagram: 1. Test bench; 2. Loading plate; 3. Adjustment fixture; 31. Vertical slide rail; 311. Snap-fit ​​groove; 312. Top plate; 32. Vertical slider; 321. Horizontal slide rail; 322. Slider body; 323. Slider groove; 324. Snap-fit ​​slider; 325. Snap-fit ​​spring; 33. Horizontal slider; 4. Load mechanism; 41. Load slide rail; 42. Load block; 421. Connecting rod slide rail; 43. Displacement sensor; 5. Connecting mechanism; 51. Rigid 511. Connecting rod body; 512. Sliding bearing; 513. Anti-slip groove; 52. Telescopic connecting rod; 521. Outer rod; 522. Pressing inner rod; 523. Thrust spring; 53. Connecting support plate; 6. Fixing mechanism; 61. Inner shaft; 611. Clamping groove; 612. Pressing groove; 62. Outer sleeve; 621. Outer ring; 622. Connecting slider; 623. Wedge pressure rod; 63. Clamping block; 631. Clamping wedge; 64. Retraction spring. Detailed Implementation

[0038] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0039] Please see Figures 1 to 9 This invention provides an intelligent final inspection and testing machine for glass lifters, the technical solution of which is as follows:

[0040] As a specific embodiment of the present invention, refer to Figure 1 and Figure 2 A smart final inspection testing machine for a glass lifter includes a test platform 1 and a loading plate 2; it also includes an adjusting fixture 3, a load mechanism 4, a connecting mechanism 5, and a fixing mechanism 6. The adjusting fixture 3 is connected to the loading plate 2. The load mechanism 4 is installed at the lower part of the test platform 1. The connecting mechanism 5 is connected to the load mechanism 4. During the final inspection test, the glass support of the glass lifter moves in an arc and drives the load mechanism 4 to rise to the same height through the connecting mechanism 5. The fixing mechanism 6 is connected to the adjusting fixture 3. During the rise of the glass support, the connecting mechanism 5 is driven to extend and retract. When the connecting mechanism 5 extends and retracts, it squeezes the adjusting fixture 3 through the glass lifter. The adjusting fixture 3 is clamped by the pressure to ensure that the glass lifter will not cause inaccurate test results due to vibration or other problems during the test.

[0041] As a specific embodiment of the present invention, refer to Figure 2 , Figure 3 and Figure 4The adjusting fixture 3 includes a vertical slide 31, a vertical slider 32, and a horizontal slider 33. Four sets of vertical slides 31 are symmetrically arranged on the upper, lower, left, and right sides of the loading plate 2. The vertical slider 32 is slidably installed within the vertical slide 31, and a horizontal slide 321 is provided on the vertical slider 32. The horizontal slider 33 is slidably installed within the horizontal slide 321. The fixing mechanism 6 is connected to the horizontal slider 33. The loading plate 2 is divided into four quadrants. By allowing the vertical slider 32 to slide vertically within the vertical slide 31 and the horizontal slider 33 to slide within the horizontal slide 321 on the vertical slider 32, each fixing mechanism 6 within the four quadrants can be moved to the desired position, thereby enabling the fixing of glass lifters of different sizes and specifications.

[0042] As a specific embodiment of the present invention, refer to Figure 3 and Figure 4 Both the vertical slide groove 31 and the horizontal slide groove 321 are provided with snap-fit ​​grooves 311; the vertical slider 32 also includes a slider body 322, a slider groove 323, a snap-fit ​​slider 324, and a snap-fit ​​spring 325; the slider body 322 is slidably installed in the vertical slide groove 31; the slider groove 323 is opened on the slider body 322; the snap-fit ​​slider 324 is slidably installed in the slider groove 323, the diameter of the snap-fit ​​slider 324 is equal to that of the snap-fit ​​groove 311, and the snap-fit ​​slider 324 forms a snap-fit ​​state with the snap-fit ​​groove 311 when the snap-fit ​​spring 325 is not compressed, that is, part of the snap-fit ​​slider 324 is located in the snap-fit ​​groove 311 and the other part is located in the slider groove 323; the snap-fit ​​spring 325 is connected between the slider groove 323 and the snap-fit ​​slider 324; the structure of the horizontal slider 33 is the same as that of the vertical slider 32, and the horizontal slider 33 is also provided with a snap-fit ​​slider 324 and a snap-fit ​​spring 325. After pressing down the locking slider 324, the vertical slider 32 or the horizontal slider 33 can move freely within the vertical slide groove 31 or the horizontal slide groove 321. According to the specifications of different types of glass lifters, the vertical slider 32 and the horizontal slider 33 can be adjusted to the corresponding positions. At this time, the locking block automatically pops out under the action of the locking spring 325, completing the limiting work. In order to further simplify the tooling debugging work, a hole or slot communicating with the outside of the vertical slider 32 can be opened on the slider groove 323, and the locking slider 324 is improved to be able to be freely moved from the outside of the vertical slider 32. In addition, as an existing convenient method, a top plate 312 can be used on the outside of the vertical slide groove 31 or the horizontal slide groove 321. When the top plate 312 is pressed into the locking groove 311, the locking slider 324 will always be pressed inside the slider groove 323, which will allow the vertical slider 32 or the horizontal slider 33 to slide freely.

[0043] As a specific embodiment of the present invention, refer to Figure 3 , Figure 6and Figure 7 The fixing mechanism 6 includes an inner shaft 61, an outer sleeve 62, a clamping block 63, and a retraction spring 64. The inner shaft 61 is connected to the horizontal slider 33, and a clamping groove 611 and a pressure-shifting groove 612 are arranged in a circumferential array on the inner shaft 61. The outer sleeve 62 is slidably mounted on the pressure-shifting groove 612. The clamping block 63 is slidably mounted in the clamping groove 611. The retraction spring 64 is connected between two clamping blocks 63 that are symmetrical about the axis of the inner shaft 61. When the outer sleeve 62 is subjected to pressure, it will move towards the horizontal slider 33 and exert a squeezing force on the clamping block 63, causing the clamping block 63 to extend from the extended clamping groove 611 and press against the inner wall of the positioning hole of the glass lifter, thereby fixing the glass lifter and increasing the fixing efficiency. The clamping work is completed quickly when the glass lifter is pressed into the inner shaft 61, and the correct alignment of the glass lifter can be ensured by the circumferential array of clamping blocks 63. Since the internal support action of the clamping block 63 can produce an automatic centering effect, even if a slight deviation occurs when the operator loads the glass lifter onto the loading plate 2, it can be automatically corrected by the centering action of the clamping block 63.

[0044] As a specific embodiment of the present invention, refer to Figure 3 , Figure 6 and Figure 7 The outer sleeve 62 includes an outer ring 621, a connecting slider 622, and a wedge-shaped pressure rod 623. The outer ring 621 is slidably mounted on the inner shaft 61. The connecting slider 622 is connected to the outer ring 621 and slidably mounted in the pressure groove 612. The wedge-shaped pressure rod 623 is connected to the connecting slider 622, and a spring groove for the retraction spring 64 to pass through is provided on the wedge-shaped pressure rod 623. The inner wall of the clamping block 63 is provided with a clamping wedge surface 631. The wedge surfaces of the clamping wedge surface 631 and the wedge-shaped pressure rod 623 are set as rough surfaces, which can further improve the friction between the two and make the wedge clamping effect better. After the clamping block 63 clamps the window regulator, the wedge pressure rod 623 will wedge tightly between the clamping wedge surface 631 of the clamping block 63. Under the action of the wedge force, the clamping block 63 and the outer sleeve 62 will be in a stationary state, and the thrust spring 523 will generate a thrust on the inner compression rod 522 and the connecting bracket, thereby transmitting the thrust to the window regulator, ensuring that the clamping state between the clamping block 63 and the outer sleeve 62 will not be loosened, and the clamping force will remain in a clamped state and dynamically change to match the changing trend of the motor load.

[0045] As a specific embodiment of the present invention, refer to Figure 2 , Figure 8 and Figure 9The load mechanism 4 includes a load slide 41, a load block 42, and a displacement sensor 43. The load slide 41 is located at the lower part of the test bench 1. The load block 42 is slidably mounted on the load slide 41, and a connecting rod slide 421 is provided on the load block 42. The displacement sensor 43 is connected to the lowermost part of the load slide 41. By using the sliding distance and sliding speed of the load block 42, the direct detection of the glass bracket is replaced, thus avoiding the need to change the position of the displacement sensor 43 when detecting glass lifters of different specifications. Furthermore, the displacement sensor 43 does not require calibration, thereby improving detection efficiency.

[0046] As a specific embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 8 and Figure 9 The connecting mechanism 5 includes a rigid connecting rod 51, a telescopic connecting rod 52, and a connecting support plate 53. The rigid connecting rod 51 includes a connecting rod body 511, a sliding bearing 512, and an anti-deviation groove 513. The lower end of the connecting rod body 511 is slidably installed in the connecting rod groove 421, and the connecting rod body 511 is connected to the upper end of the load groove 41 by a guide rail to ensure that the connecting rod body 511 slides horizontally in the load groove 41 and to prevent the connecting rod body 511 from rotating. The sliding bearing 512 is installed at the lower end of the connecting rod body 511 and is connected by a sliding bearing. 512 can convert the sliding friction of the connecting rod body 511 into rolling friction, thereby reducing the friction force and ensuring that during the test, the connecting plate 53 will not slide relative to the glass bracket after being installed inside the glass bracket, which would cause inaccurate test results. When the glass bracket makes an oblique arc movement, the connecting rod body 511 can quickly respond to decompose the displacement generated by the glass bracket. The anti-slip groove 513 is formed on the connecting rod body 511. The telescopic connecting rod 52 is connected to the rigid connecting rod 51. The connecting plate 53 is connected to the telescopic connecting rod 52. Since the glass support moves in an arc along the track of the glass lifter, ropes are needed to connect the glass support and the load block 42 to accommodate the arc motion. Here, a rigid connecting rod 51 and a telescopic connecting rod 52 are used to decompose the arc motion into the vertical, front-back horizontal, and left-right horizontal directions. The distance the glass support moves in the vertical direction is equal to the rising distance of the load block 42. The distance the glass support moves in the front-back horizontal direction is equal to the telescopic length of the telescopic connecting rod 52. The distance the glass support moves in the left-right horizontal direction is equal to the distance the rigid connecting rod 51 slides in the connecting rod groove 421. At this time, the stopping position of the glass support can be obtained by directly measuring the rising distance of the load block 42 using the displacement sensor 43. There is no need to adjust the position of the displacement sensor 43. Furthermore, the rigid connecting rod 51 can ensure that the load block 42 will not jump due to inertial force, thereby ensuring the accuracy of the speed test.

[0047] As a specific embodiment of the present invention, refer to Figure 1 and Figure 8 The telescopic connecting rod 52 includes an outer rod 521, an inner compression rod 522, and a thrust spring 523. The outer rod 521 is connected to the rigid connecting rod 51. The inner compression rod 522 is slidably installed inside the outer rod 521. The thrust spring 523 is connected between the inner compression rod 522 and the outer rod 521. Before testing, the connecting plate 53 is clamped into the glass bracket. Under the action of the thrust spring 523, the connecting plate 53 will generate a thrust towards the loading plate 2 of the glass lifter. Under the action of this thrust, the glass lifter will tend to move towards the outer sleeve 62. The outer sleeve 62 being compressed will cause the clamping block 63 to tend to move radially, increasing the clamping force on the glass lifter, thereby ensuring that the glass lifter is more stably fixed. During the sliding process of the glass bracket, the glass bracket experiences the maximum thrust, i.e., the clamping force, when it is located in the middle position of the arc-shaped guide rail. The maximum thrust is designed to match the acceleration and deceleration processes of the motor during startup and shutdown, ensuring the stability of the window regulator during testing and thus improving the accuracy of the test results. Before testing, the curved guide rail of the window regulator is coated with oil, so the thrust will not cause excessive increase in friction during the sliding of the glass bracket (and the friction generated here can simulate the friction between the window seal and the window glass, making the test more realistic). At both ends, the thrust is further reduced, ensuring that it will not be affected by friction when stopped at both ends, making the stopping position detection accurate.

[0048] Workflow: When testing different specifications of window regulators, first adjust the fixture 3 to the corresponding position, press the window regulator to be tested onto the inner shaft 61. At this time, the clamping block 63 will tighten the positioning hole on the window regulator to fix it. Then, the connecting plate 53 is snapped into the glass bracket of the window regulator. After completing the preparation work, start the motor to start the test. The glass bracket moves up and down under the drive of the motor. At this time, the displacement sensor 43 will obtain the stopping position and speed of the glass bracket through the displacement distance and speed of the load block 42.

[0049] Specifically, when testing different specifications of glass lifters, the adjusting fixture 3 is first adjusted. Based on the position of the positioning holes on the corresponding specification of the glass lifter, the operator can use the top plate 312 corresponding to the locking groove 311 to press the locking slider 324 on the vertical slider 32 into the slider groove 323. At this time, the vertical slider 32 will be allowed to slide. After sliding to the corresponding position, the top plate 312 is removed, and the locking slider 324 will automatically pop out into the locking groove 311. The vertical sliders 32 in all four quadrants of the fixture plate 2 are then slid to their corresponding positions. The above operation is repeated to slide the horizontal slider 33 to its corresponding position as well. After completing the above steps, the glass lifter can be pressed onto the fixing mechanism 6, and the glass can be raised or lowered. The positioning hole on the device is aligned with the inner shaft 61 for press-fitting. The glass lifter presses the outer ring 621 to slide. When the outer ring 621 moves, it will drive the wedge pressure rod 623 to slide through the connecting slider 622. The wedge pressure rod 623 will squeeze the clamping wedge surface 631 of the clamping block 63, causing the clamping block 63 to be pushed out of the clamping groove 611 and tightened to fix the positioning hole of the glass lifter. When fully tightened, the wedge pressure rod 623 will generate a wedge force between itself and the clamping wedge surface 631, so that the wedge pressure rod 623 and the clamping wedge surface 631 remain stationary and fixed. The connecting plate 53 is manually clamped into the glass bracket of the glass lifter. At this time, the thrust spring 523 will generate a thrust on the connecting plate 53 by squeezing the inner rod 522. The connecting plate 53 will generate a thrust on the glass lifter, which will cause the glass lifter to move towards the outer sleeve 62. The pressure on the outer sleeve 62 will cause the clamping block 63 to move radially, increasing the clamping force on the glass lifter and ensuring more stable fixation. Furthermore, during the sliding of the glass bracket, as the motor goes from start to maximum speed and then to stop, the thrust spring 523 is gradually compressed and then released. The thrust generated during this process first increases and then decreases, allowing the clamping force on the glass lifter to adapt to changes in motor speed, thus ensuring the stability of the glass lifter during testing and consequently the accuracy of the test results. During the lifting and lowering of the glass bracket, the rigid connecting rod... The 51 and telescopic link 52 decompose the arc motion into the vertical, front-back horizontal, and left-right horizontal directions. The distance the glass bracket moves in the vertical direction is equal to the rising distance of the load block 42. The distance the glass bracket moves in the front-back horizontal direction is equal to the telescopic length of the telescopic link 52. The distance the glass bracket moves in the left-right horizontal direction is equal to the distance the rigid link 51 slides in the link groove 421. At this time, the stopping position of the glass bracket can be obtained by directly measuring the rising distance of the load block 42 using the displacement sensor 43. There is no need to adjust the position of the displacement sensor 43. Moreover, the rigid link 51 can ensure that the load block 42 will not jump due to inertial force, thus ensuring the accuracy of the speed test.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. An intelligent final inspection testing machine for a glass lifter; comprising a testing table and a loading plate; characterized in that: It also includes an adjusting fixture, a load mechanism, a connecting mechanism, and a fixing mechanism; the adjusting fixture is connected to the loading plate; the load mechanism is installed at the bottom of the test bench; the connecting mechanism is connected to the load mechanism, and during the final inspection test, the glass support of the glass lifter moves in an arc and drives the load mechanism to rise to the same height through the connecting mechanism; the fixing mechanism is connected to the adjusting fixture, and during the rise of the glass support, it drives the connecting mechanism to extend and retract, and when the connecting mechanism extends and retracts, it squeezes the adjusting fixture through the glass lifter, and the adjusting fixture is clamped by the pressure of the glass lifter; The load mechanism includes a load chute, a load block, and a displacement sensor; the distance the glass bracket moves vertically is equal to the distance the load block rises. The connecting mechanism includes a rigid connecting rod, a telescopic connecting rod, and a connecting plate; the rigid connecting rod includes a connecting rod body, a sliding bearing, and an anti-deviation groove; the lower end of the connecting rod body is slidably installed in the connecting rod groove; the sliding bearing is installed at the lower end of the connecting rod body; the anti-deviation groove is formed on the connecting rod body; the telescopic connecting rod is connected to the rigid connecting rod; the connecting plate is connected to the telescopic connecting rod; the rigid connecting rod and the telescopic connecting rod are used to decompose the arc motion into the vertical direction, the front-back horizontal direction, and the left-right horizontal direction; The telescopic linkage includes an outer rod, an inner compression rod, and a thrust spring; the outer rod is connected to a rigid linkage; the inner compression rod is slidably installed inside the outer rod; the thrust spring is connected between the inner compression rod and the outer rod; and the rigid linkage ensures that the load block will no longer jump due to inertial force, thereby ensuring the accuracy of the speed test.

2. The intelligent final inspection and testing machine for a glass lifter according to claim 1, characterized in that: The adjusting fixture includes a vertical slide, a vertical slider, and a horizontal slider. There are four sets of vertical slides, which are symmetrically located on the upper, lower, left, and right sides of the loading plate. The vertical slider is slidably installed in the vertical slide, and a horizontal slide is provided on the vertical slider. The horizontal slider is slidably installed in the horizontal slide. The fixing mechanism is connected to the horizontal slider.

3. The intelligent final inspection and testing machine for a glass lifter according to claim 2, characterized in that: Both the vertical and horizontal slides are provided with snap-fit ​​grooves; the vertical slider also includes a slider body, a slider groove, a snap-fit ​​slider, and a snap-fit ​​spring; the slider body is slidably installed in the vertical slide groove; the slider groove is provided on the slider body; the snap-fit ​​slider is slidably installed in the slider groove; the snap-fit ​​spring connects the slider groove and the snap-fit ​​slider; the structure of the horizontal slider is the same as that of the vertical slider.

4. The intelligent final inspection and testing machine for a glass lifter according to claim 2, characterized in that: The fixing mechanism includes an inner shaft, an outer sleeve, a clamping block, and a retraction spring; the inner shaft is connected to a horizontal slider, and the inner shaft has a circumferential array of clamping grooves and pressure-shifting grooves; the outer sleeve is slidably mounted on the pressure-shifting grooves; the clamping block is slidably mounted in the clamping groove; and the retraction spring is connected between two clamping blocks that are symmetrical about the axis of the inner shaft.

5. An intelligent final inspection and testing machine for a glass lifter according to claim 4, characterized in that: The outer casing includes an outer ring body, a connecting slider, and a wedge-shaped pressure bar; the outer ring body is slidably mounted on the inner shaft body; The connecting slider is connected to the outer ring and slidably installed in the pressure groove; the wedge pressure rod is connected to the connecting slider; and a clamping wedge surface is provided on the inner wall of the clamping block.

6. The intelligent final inspection and testing machine for a glass lifter according to claim 1, characterized in that: The load slide is located at the bottom of the test bench; the load block is slidably mounted on the load slide, and the load block has a connecting rod slide; the displacement sensor is connected to the bottom of the load slide.

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