Intelligent final detection testing machine for window glass lifter

Abstract

The invention relates to the technical field of vehicle part testing, in particular to an intelligent final detection testing machine for a window glass lifter, which comprises an adjusting tool, a load mechanism, a connecting mechanism and a fixing mechanism, the adjusting tool is connected with the tool loading plate; the load mechanism is mounted at the lower part of the test board; the connecting mechanism is connected with the load mechanism; the fixing mechanism is connected with the adjusting tool, the arc motion of the glass bracket is decomposed into the vertical direction, the front-back horizontal direction and the left-right horizontal direction through the connecting mechanism, the sliding distance and the sliding speed of the load block are the same as those of the glass bracket, and only a displacement sensor needs to be used for detecting the load block. The displacement sensor does not need to be debugged and calibrated, and the problems that the glass bracket of the rope wheel type glass lifter moves in an arc mode, the load and the glass bracket need to be connected through a rope, the load jumps under inertia force when the load is connected through the rope, and then the test result is inaccurate are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts testing, and in particular to an intelligent final inspection testing machine for a window lifter. Background Art

[0002] Currently, new energy vehicles are equipped with electronically controlled window lifters. Electronically controlled window lifters are devices that use motors to control the lifting of vehicle windows. They mainly include single-arm, double-arm and cross-arm types. Before the window lifter is installed on the vehicle door, the window lifter assembly needs to be tested, mainly including current testing, lifting bracket stop position testing, cable overlap and tension testing.

[0003] Currently, glass lifter assemblies are primarily inspected manually, with the finished lifter placed on a test fixture. The threads on the lifter are first inspected, followed by an automatic stop of the lifter assembly and an automatic determination of whether the bracket's stop position tolerances meet requirements. Finally, current values are collected during the load-up process and a curve is generated. Software then determines whether the current value ranges within any interval meet requirements. Once all tests pass, the product is considered qualified and ready for shipment. When inspecting glass lifters for different car brands, the motor speeds and bracket stop positions vary for different specifications. After replacing the fixture, the stop position sensor must be calibrated to avoid inaccurate test results, which can reduce inspection efficiency. Existing technologies have already proposed effective solutions to this problem, such as patent publication number CN216380994U, which describes a glass lifter delivery position positioning fixture. This fixture utilizes a linear guide rail and a positioning unit to indirectly detect the glass lifter's delivery position. The load block slides along the guide rails and is linked to the lifter's glass lifter via a cable. When the glass holder is raised or lowered, the rope drives the load block to move synchronously on the guide rail, and the linear displacement sensor calculates the actual position of the glass holder by monitoring the movement trajectory of the load block; the PLC controller adjusts the start and stop actions of the motor after receiving the sensor signal, thereby accurately locking the target position of the holder. It can adapt to the glass holder positioning requirements of various types of lifters, which not only enhances the adaptability range of tooling equipment, but also improves the controllable accuracy of the positioning process.

[0004] Although the existing technology has solved the problem of reduced detection efficiency caused by the need to calibrate the position acquisition sensor when detecting the stop position of glass lifter brackets of different specifications, the following problems still exist: the window glass used in most vehicles has a curved surface, so a pulley-type glass lifter is generally used to adapt to the movement path of the glass. At this time, the glass bracket does not move in the vertical direction, so during the final inspection test, the load and the glass bracket are mainly connected by a flexible rope to meet the different movement paths of glass lifters of different specifications. If the load displacement and speed are tested directly, the load will move upward for a short distance after reaching the stop position due to inertia and then fall back. At this time, the calculated speed and displacement will be inaccurate, resulting in deviations in the final inspection results and a decrease in the yield rate.

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

[0006] The present invention provides an intelligent final inspection test machine for a glass lifter, which solves the problem that the glass holder of a pulley type glass lifter moves in an arc motion, requiring the use of a rope to connect the load and the glass holder, and the rope connection of the load will cause the load to jump under the inertial force, thereby resulting in inaccurate test results. The arc motion of the glass holder is decomposed into the vertical direction, the front-back horizontal direction, and the left-right horizontal direction through a connecting mechanism, so that the sliding distance and sliding speed of the load block are the same as those of the glass holder. Only a displacement sensor needs to be used to detect the load block, and there is no need to debug and calibrate the displacement sensor, thereby improving detection efficiency and detection accuracy; during the detection process, the telescopic connecting rod will be extended and retracted according to the motion trajectory of the glass holder, and dynamically match the change in motor speed to change the clamping force on the glass lifter, thereby ensuring the stability of the glass lifter during the test, thereby improving the accuracy of the test results.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An intelligent final inspection tester for a glass lifter comprises a test bench and a tool loading plate; further comprising an adjusting fixture, a loading mechanism, a connecting mechanism and a fixing mechanism; the adjusting fixture is connected to the tool loading plate; the loading mechanism is mounted at the bottom of the test bench; the connecting mechanism is connected to the loading mechanism, and when performing a final inspection test, the glass holder of the glass lifter moves in an arc and drives the loading mechanism to rise to the same height via the connecting mechanism; the fixing mechanism is connected to the adjusting fixture, and drives the connecting mechanism to extend and retract during the rising process of the glass holder. When the connecting mechanism extends and retracts, the adjusting fixture is squeezed by the glass lifter, and the adjusting fixture is pressed to clamp the glass lifter.

[0009] Preferably, the adjustment tooling includes a vertical slide groove, a vertical slider and a horizontal slider; the vertical slide grooves are provided in four groups, which are symmetrically provided at the upper and lower parts and the left and right parts of the tool 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 work loading plate is divided into four quadrants. The vertical slider slides vertically in the vertical slide groove, and the horizontal slider slides in the horizontal slide groove on the vertical slider. Each fixing mechanism in the four quadrants can be moved to the desired position, thereby realizing the fixing work of glass lifters of different sizes.

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

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

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

[0014] In the above scheme, when the outer shell is subjected to pressure, it will move in the direction of the horizontal slider and generate an extrusion force on the clamping block, so that the clamping block extends from the clamping groove and presses 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. When the glass lifter is pressed onto the inner shaft, the clamping work is completed quickly, and the correct alignment of the glass lifter can be ensured by the clamping blocks in the circular array.

[0015] Preferably, the outer shell includes an outer ring body, a connecting slider and a wedge pressure rod; the outer ring body is slidably installed on the inner shaft body; the connecting slider is connected to the outer ring body and is slidably installed in the pressure displacement groove; the wedge pressure rod is connected to the connecting slider; 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 be wedged between the clamping wedge surface of the clamping block. Under the action of the wedging force, the clamping block and the outer shell will be in a stationary state, and the thrust spring will generate thrust on the extruded inner rod and the connecting bracket, which will be transmitted to the glass lifter, thereby ensuring the clamping state between the clamping block and the outer shell will not be loosened, and the clamping force will be maintained in the clamped state and dynamically changed 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 opened at the lower part of the test bench; the load block is slidably installed on the load chute, and a connecting rod chute is opened on the load block; the displacement sensor is connected to the lower 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 holder, thereby avoiding the need to change the position of the displacement sensor when detecting glass lifters of different specifications. 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 support plate; the rigid connecting rod includes a connecting rod body, a sliding bearing and an anti-deflection slide groove; the lower end of the connecting rod body is slidably installed in the connecting rod slide groove; the sliding bearing is installed at the lower end of the connecting rod body; the anti-deflection slide groove is opened on the connecting rod body; the telescopic connecting rod is connected to the rigid connecting rod; and the connecting support plate is connected to the telescopic connecting rod.

[0020] In the above scheme, since the movement of the glass holder on the track of the glass lifter is an arc motion, a rope is needed to connect the glass holder and the load block to adapt to the arc motion, and here a rigid link and a telescopic link are used to decompose the arc motion into the vertical direction, the front-back horizontal direction, and the left-right horizontal direction. The distance the glass holder moves in the vertical direction is equal to the rising distance of the load block, the distance the glass holder moves in the front-back horizontal direction is equal to the telescopic length of the telescopic link, and the distance the glass holder moves in the left-right horizontal direction is equal to the distance the rigid link slides in the link slot. At this time, the stop position of the glass holder can be obtained by directly testing the rising distance of the load block using a displacement sensor, and there is no need to adjust the position of the displacement sensor. The rigid link can ensure that the load block will no longer jump due to inertia, thereby ensuring the accuracy of the speed test.

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

[0022] In the above scheme, the connecting support plate is clamped into the glass holder before the test. Under the action of the thrust spring, the connecting support plate will generate a thrust on the glass lifter toward the working plate. Under the action of this thrust, the glass lifter can have a movement tendency toward the outer shell, and the pressure on the outer shell can cause the clamping block to have a radial movement tendency, thereby increasing the clamping force on the glass lifter, thereby ensuring that the glass lifter is fixed more stably. In the process of sliding of the glass holder, the glass holder is located in the middle position of the arc guide rail, and the thrust on the glass holder is the largest, that is, the clamping force is the largest, which can match the acceleration and deceleration process of starting and stopping the motor, thereby 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 present invention has the following beneficial effects:

[0024] 1. Compared with existing glass lifter final inspection equipment, the present invention decomposes the arc motion of the glass holder into three degrees of freedom through a rigid link and a telescopic link. The rigid link can simultaneously realize vertical and left-right horizontal motion, and the telescopic link can realize front-back horizontal motion. At this time, the distance the rigid link drives the load block to rise is exactly equal to the distance the glass support plate rises. It is only necessary to use a displacement sensor to test the load block's rising distance to obtain the stop position and movement speed. In addition, there is no need to debug and calibrate the position of the displacement sensor every time a glass lifter of a different specification is changed for testing, thereby improving test efficiency and the accuracy of test results.

[0025] 2. The present invention provides an adjustment fixture; through the sliding and locking action of each group of vertical sliders and horizontal sliders on the four quadrants of the tool loading plate, it can adapt to various types and specifications of glass lifters, and is more efficient and less costly than directly replacing the tool loading plate. A fixing mechanism is provided on the horizontal slider, which can automatically extend and automatically center the positioning hole of the glass lifter when the glass lifter is press-fitted onto the inner shaft. During this process, the wedge pressure rod will be wedged between the clamping wedge surface of the clamping block, so that the glass lifter can be quickly fixed. At the same time, the automatic centering and tightening action can automatically correct the deviation caused by the fixing process, further improving the efficiency and accuracy of inspection and installation.

[0026] 3. The present invention provides a thrust spring so that, under the action of the thrust spring, the connecting support plate will generate a thrust on the glass lifter toward the work loading plate. Under the action of this thrust, the glass lifter can have a movement tendency toward the outer shell. The pressure on the outer shell can cause the clamping block to have a radial movement tendency, thereby increasing the clamping force on the glass lifter, thereby ensuring that the glass lifter is fixed more stably. In addition, during the sliding process of the glass bracket, the acceleration and deceleration process of starting and stopping the motor can be matched, thereby ensuring the stability of the glass lifter during the test process, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

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

[0030] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0031] Figure 4 It is a cross-sectional view of the vertical slider of the present invention in a locked state;

[0032] Figure 5 This is a schematic diagram of the connection relationship between the vertical slider and the clamping slider of the present invention;

[0033] Figure 6 An exploded view of the fixing mechanism of the present invention;

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

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

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

[0037] In the figure: 1. Test bench; 2. Work loading plate; 3. Adjustment fixture; 31. Vertical slide; 311. Snap-fit groove; 312. Top plate; 32. Vertical slider; 321. Horizontal slide; 322. Slider body; 323. Slider groove; 324. Snap-fit slider; 325. Snap-fit spring; 33. Horizontal slider; 4. Load mechanism; 41. Load slide; 42. Load block; 421. Connecting rod slide; 43. Displacement sensor; 5. Connecting mechanism; 51. Rigidity Connecting rod; 511, connecting rod body; 512, sliding bearing; 513, anti-bias sliding groove; 52, telescopic connecting rod; 521, outer rod; 522, extrusion inner rod; 523, thrust spring; 53, connecting support plate; 6, fixing mechanism; 61, inner shaft body; 611, clamping groove; 612, pressure displacement groove; 62, outer sleeve body; 621, outer ring body; 622, connecting slider; 623, wedge surface pressure rod; 63, clamping block; 631, clamping wedge surface; 64, contraction spring. DETAILED DESCRIPTION

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0039] See also Figures 1 to 9 The present invention provides an intelligent final inspection test machine for a glass lifter, and the technical solution is as follows:

[0040] As a specific embodiment of the present invention, refer to Figure 1 and Figure 2 ; An intelligent final inspection test machine for a glass lifter; includes a test bench 1 and a work loading plate 2; 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 work loading plate 2; the load mechanism 4 is installed at the lower part of the test bench 1; the connecting mechanism 5 is connected to the load mechanism 4, and when performing the final inspection test, the glass holder 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, and the connecting mechanism 5 drives the extending and retracting of the glass holder during the rising process. When the connecting mechanism 5 extends and retracts, the adjusting fixture 3 is squeezed by the glass lifter, and the adjusting fixture 3 is pressed to clamp the glass lifter, thereby ensuring that the glass lifter will not have inaccurate test results due to problems such as vibration during the test.

[0041] As a specific embodiment of the present invention, refer to Figure 2 、 Figure 3 and Figure 4The adjustment fixture 3 includes a vertical slot 31, a vertical slider 32, and a horizontal slider 33. Four sets of vertical slots 31 are symmetrically located on the upper and lower, left, and right sides of the work loading plate 2. The vertical sliders 32 slide within the vertical slots 31, and are provided with horizontal slots 321. The horizontal slider 33 slides within the horizontal slots 321. The fixing mechanism 6 is connected to the horizontal slider 33. The work loading plate 2 is divided into four quadrants. By vertically sliding the vertical sliders 32 within the vertical slots 31 and the horizontal sliders 33 within the horizontal slots 321 on the vertical slider 32, each fixing mechanism 6 in each of the four quadrants can be moved to a desired position, thereby securing window lifters of different sizes.

[0042] As a specific embodiment of the present invention, refer to Figure 3 and Figure 4 When the cam 321 is in the unlocking state, the locking cam 324 is in the unlocking state, and the locking cam 324 is locked. When the cam 324 is pressed down, the vertical slider 32 or the horizontal slider 33 can be freely moved in 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 position. At this time, the clamping block automatically pops out under the action of the clamping spring 325, completing the limiting work. In order to further simplify the tooling debugging work, a hole groove that communicates with the outside of the vertical slider 32 can be opened on the slider groove 323, and the clamping slider 324 is improved to a structure that can be freely dialed 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 clamping groove 311, the clamping slider 324 will be kept pressed inside the slider groove 323. At this time, the vertical slider 32 or the horizontal slider 33 will be allowed 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 body 61, an outer shaft body 62, a clamping block 63 and a contraction spring 64; the inner shaft body 61 is connected to the horizontal slider 33, and a clamping groove 611 and a pressure-displacement groove 612 are provided in a circumferential array on the inner shaft body 61; the outer shaft body 62 is slidably installed on the pressure-displacement groove 612; the clamping block 63 is slidably installed in the clamping groove 611; the contraction spring 64 is connected between the two clamping blocks 63 that are symmetrical about the axis of the inner shaft body 61. When the outer shell 62 is under pressure, it will move toward the horizontal slider 33 and generate an extrusion force on the clamping block 63, so that the clamping block 63 extends out from the protruding clamping groove 611 and presses 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. When the glass lifter is pressed onto the inner shaft 61, the clamping work is completed quickly, and the correct alignment of the glass lifter can be ensured by the circumferential array of clamping blocks 63. Since the internal supporting action of the clamping block 63 can produce an automatic centering effect, when the staff installs the glass lifter on the work loading plate 2, even if there is a slight deviation, it can be automatically corrected under 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 shell 62 includes an outer ring body 621, a connecting slider 622 and a wedge pressure rod 623; the outer ring body 621 is slidably installed on the inner shaft body 61; the connecting slider 622 is connected to the outer ring body 621 and is slidably installed in the pressure displacement groove 612; the wedge pressure rod 623 is connected to the connecting slider 622, and a spring groove for the contraction spring 64 to pass through is provided on the wedge pressure rod 623; a clamping wedge surface 631 is provided on the inner wall of the clamping block 63, and the wedge surface surfaces of the clamping wedge surface 631 and the wedge surface pressure rod 623 are set to be rough surfaces, which can further increase the friction between the two, so that the wedging effect is better. After the clamping block 63 clamps the glass lifter, the wedge pressure rod 623 will be wedged between the clamping wedge surface 631 of the clamping block 63. Under the action of the wedging force, the clamping block 63 and the outer shell 62 will be in a stationary state, and the thrust spring 523 will generate a thrust on the extruded inner rod 522 and the connecting bracket, thereby transmitting the thrust to the glass lifter, ensuring that the clamping state between the clamping block 63 and the outer shell 62 will not be loosened, and the clamping force is maintained in a clamped state and changes dynamically 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 chute 41, a load block 42, and a displacement sensor 43. The load chute 41 is located at the bottom of the test bench 1. The load block 42 is slidably mounted on the load chute 41 and has a connecting rod chute 421 formed therein. The displacement sensor 43 is connected to the lowest portion of the load chute 41. By using the sliding distance and speed of the load block 42 to directly detect the glass holder, the need to reposition the displacement sensor 43 when testing glass lifters of different specifications is avoided. Calibration of the displacement sensor 43 is also eliminated, 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-deflection slide groove 513; the lower end of the connecting rod body 511 is slidably installed in the connecting rod slide groove 421, and the connecting rod body 511 and the upper end of the load slide groove 41 are connected in a guide rail manner to ensure that the connecting rod body 511 slides horizontally in the load slide groove 41 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 the sliding bearing 512 can convert the sliding friction of the connecting rod body 511 into rolling friction, so that the friction force is reduced, ensuring that during the test, after the connecting support plate 53 is installed in the glass holder, there will be no relative sliding between the glass holder and the glass holder, causing inaccurate test results. When the glass holder performs an oblique arc movement, the connecting rod body 511 can quickly respond and decompose the displacement generated by the glass holder; the anti-deflection slide groove 513 is opened on the connecting rod body 511; the telescopic connecting rod 52 is connected to the rigid connecting rod 51; the connecting support plate 53 is connected to the telescopic connecting rod 52. Since the movement of the glass holder on the track of the glass lifter is an arc motion, a rope is needed to connect the glass holder and the load block 42 to adapt to the arc motion, and the rigid link 51 and the telescopic link 52 are used here to decompose the arc motion into the vertical direction, the front-back horizontal direction, and the left-right horizontal direction. The distance the glass holder moves in the vertical direction is equal to the rising distance of the load block 42, the distance the glass holder moves in the front-back horizontal direction is equal to the telescopic length of the telescopic link 52, and the distance the glass holder moves in the left-right horizontal direction is equal to the distance the rigid link 51 slides in the link slot 421. At this time, the stop position of the glass holder can be obtained by directly testing the rising distance of the load block 42 using the displacement sensor 43, and there is no need to adjust the position of the displacement sensor 43. The rigid link 51 can ensure that the load block 42 will no longer jump due to inertia, 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 extruded inner rod 522, and a thrust spring 523. The outer rod 521 is connected to the rigid connecting rod 51. The extruded inner rod 522 is slidably installed in the outer rod 521. The thrust spring 523 is connected between the extruded inner rod 522 and the outer rod 521. Before testing, the connecting support plate 53 is clamped into the glass holder. Under the action of the thrust spring 523, the connecting support plate 53 will generate a thrust toward the work loading plate 2 on the glass lifter. Under the action of this thrust, the glass lifter can generate a movement tendency toward the outer shell 62. The outer shell 62 is compressed, which can cause the clamping block 63 to generate a radial movement tendency, thereby increasing the clamping force on the glass lifter, thereby ensuring that the glass lifter is fixed more stably. In the process of sliding the glass holder, the glass holder is subjected to the maximum thrust, i.e., the clamping force, when the glass holder is in the middle position of the curved guide rail. Maximum, can match the acceleration and deceleration process of motor start and stop, ensure the stability of the window lifter during the test, thereby improving the accuracy of the test results. The curved guide rails of the window lifter will be oiled before the test, so the thrust will not cause the friction force of the glass holder to increase excessively during the sliding process (and the friction force generated here can simulate the friction force generated by the window sealing strip on the window glass, making the test more realistic); the thrust is further reduced at the two end positions, which can ensure that it will not be affected by friction when stopping at both ends, so that the stop position detection is accurate.

[0048] Workflow: When replacing glass lifters of different specifications for testing, first debug the adjustment tool 3 to the corresponding position, press the glass lifter to be tested onto the inner shaft 61, and the clamping block 63 will tighten the positioning hole on the glass lifter to fix the glass lifter. Then, clip the connecting support plate 53 into the glass holder of the glass lifter. After completing the preparations, start the motor to start the test. The glass holder will move up and down under the drive of the motor. At this time, the displacement sensor 43 will obtain the stop position and speed of the glass holder through the displacement distance and speed of the load block 42.

[0049] Specifically, when replacing a glass lifter of a different specification for testing, the adjustment tool 3 is first debugged. According to the position of the positioning hole on the glass lifter of the corresponding specification, the staff can use the top plate 312 corresponding to the clamping groove 311 to press the clamping slide 324 on the vertical slide 32 into the slide groove 323. At this time, the vertical slide 32 is allowed to slide. After sliding to the corresponding position, the top plate 312 is removed. At this time, the clamping slide 324 will automatically pop out into the clamping groove 311. Slide the vertical slides 32 in the four quadrants on the tool loading plate 2 to the corresponding positions, and repeat the above operation to slide the horizontal slide 33 to the corresponding position. After completing the above steps, the glass lifter can be pressed onto the fixing mechanism 6, and the glass lifter can be When the positioning hole on the device is aligned with the inner shaft body 61, the glass lifter presses the outer ring body 621 to slide. When the outer ring body 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, so that the clamping block 63 is pushed out from the clamping groove 611 and tightened to fix the positioning hole of the glass lifter. When it is fully tightened, the wedge pressure rod 623 will generate a wedge force between the clamping wedge surface 631, so that the wedge pressure rod 623 and the clamping wedge surface 631 remain stationary and fixed. Manually clamp the connecting support plate 53 into the glass bracket of the glass lifter. At this time, the thrust spring 523 will generate a thrust on the connecting support plate 53 by squeezing the inner rod 522. The connecting support plate 53 will generate a thrust on the glass lifter, and under the action of this thrust, the glass lifter can have a movement tendency toward the outer shell 62, and the pressure on the outer shell 62 can cause the clamping block 63 to have a radial movement tendency, thereby increasing the clamping force on the glass lifter, thereby ensuring that the glass lifter is fixed more stably, and in the process of the glass bracket sliding, the motor goes from starting to maximum speed and then stops, and the thrust spring 523 is gradually compressed and released. The thrust generated in this process first increases and then decreases, which can make the clamping force on the glass lifter adapt to the change of motor speed, thereby ensuring the stability of the glass lifter during the test, and then ensuring the accuracy of the test results; when the glass bracket is raised and lowered, the rigid connecting rod 51 and the telescopic link 52 decompose the arc motion into the vertical direction, the front-to-back horizontal direction, and the left-to-right horizontal direction. The distance the glass holder moves in the vertical direction is equal to the rising distance of the load block 42, the distance the glass holder moves in the front-to-back horizontal direction is equal to the telescopic length of the telescopic link 52, and the distance the glass holder moves in the left-to-right horizontal direction is equal to the distance the rigid link 51 slides in the link slot 421. At this time, the stop position of the glass holder can be obtained by directly testing the rising distance of the load block 42 using the displacement sensor 43, and there is no need to adjust the position of the displacement sensor 43. In addition, the rigid link 51 can ensure that the load block 42 will no longer jump due to inertia, thereby ensuring the accuracy of the speed test.

[0050] The basic principles, main features, and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. An intelligent final inspection test machine for a glass lifter; comprising a test bench (1) and a work loading plate (2); characterized in that: The device further comprises an adjusting tool (3), a load mechanism (4), a connecting mechanism (5) and a fixing mechanism (6); the adjusting tool (3) is connected to the tool loading plate (2); the load mechanism (4) is installed at the lower part of the test bench (1); the connecting mechanism (5) is connected to the load mechanism (4); when the final inspection test is performed, the glass bracket 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 tool (3); when the glass bracket rises, the connecting mechanism (5) is driven to extend and retract; when the connecting mechanism (5) extends and retracts, the adjusting tool (3) is squeezed by the glass lifter, and the adjusting tool (3) is pressed and clamped to the glass lifter.

2. The intelligent final inspection tester for a window regulator according to claim 1, characterized in that: The adjusting tool (3) comprises a vertical slide groove (31), a vertical slider (32) and a horizontal slider (33); the vertical slide groove (31) is provided with four groups, which are symmetrically provided at the upper part, the lower part, the left part and the right part of the tool loading plate (2); the vertical slider (32) is slidably installed in the vertical slide groove (31), and a horizontal slide groove (321) is provided on the vertical slider (32); the horizontal slider (33) is slidably installed in the horizontal slide groove (321); the fixing mechanism (6) is connected to the horizontal slider (33).

3. The intelligent final inspection tester for a window regulator according to claim 2, characterized in that: The vertical slide groove (31) and the horizontal slide groove (321) are both provided with a clamping groove (311); the vertical slider (32) further comprises a slider body (322), a slider groove (323), a clamping slider (324) and a clamping spring (325); the slider body (322) is slidably mounted in the vertical slide groove (31); the slider groove (323) is provided on the slider body (322); the clamping slider (324) is slidably mounted in the slider groove (323); the clamping spring (325) is connected between the slider groove (323) and the clamping slider (324); the structure of the horizontal slider (33) is the same as that of the vertical slider (32).

4. The intelligent final inspection tester for a window regulator according to claim 2, characterized in that: The fixing mechanism (6) comprises an inner shaft (61), an outer shaft (62), a clamping block (63) and a contraction spring (64); the inner shaft (61) is connected to the horizontal slider (33); a clamping groove (611) and a pressure displacement groove (612) are provided in a circumferential array on the inner shaft (61); the outer shaft (62) is slidably mounted on the pressure displacement groove (612); the clamping block (63) is slidably mounted in the clamping groove (611); and the contraction spring (64) is connected between two clamping blocks (63) symmetrical about the axis of the inner shaft (61).

5. The intelligent final inspection test machine for a window regulator according to claim 4, characterized in that: The outer shell (62) includes an outer ring body (621), a connecting slider (622) and a wedge pressure rod (623); the outer ring body (621) is slidably mounted on the inner shaft body (61); the connecting slider (622) is connected to the outer ring body (621) and slidably mounted in the pressure displacement groove (612); the wedge pressure rod (623) is connected to the connecting slider (622); and a clamping wedge surface (631) is provided on the inner wall of the clamping block (63).

6. The intelligent final inspection test machine for a window regulator according to claim 1, characterized in that: The load mechanism (4) comprises a load chute (41), a load block (42) and a displacement sensor (43); the load chute (41) is provided at the lower portion of the test bench (1); the load block (42) is slidably mounted on the load chute (41), and a connecting rod chute (421) is provided on the load block (42); and the displacement sensor (43) is connected to the lowermost portion of the load chute (41).

7. The intelligent final inspection tester for a window regulator according to claim 6, characterized in that: The connecting mechanism (5) comprises a rigid connecting rod (51), a telescopic connecting rod (52) and a connecting support plate (53); the rigid connecting rod (51) comprises a connecting rod body (511), a sliding bearing (512) and an anti-deflection sliding groove (513); the lower end of the connecting rod body (511) is slidably mounted in the connecting rod sliding groove (421); the sliding bearing (512) is mounted on the lower end of the connecting rod body (511); the anti-deflection sliding groove (513) is provided on the connecting rod body (511); the telescopic connecting rod (52) is connected to the rigid connecting rod (51); and the connecting support plate (53) is connected to the telescopic connecting rod (52).

8. The intelligent final inspection test machine for a window regulator according to claim 7, characterized in that: The telescopic connecting rod (52) comprises an outer rod (521), an extruded inner rod (522) and a thrust spring (523); the outer rod (521) is connected to the rigid connecting rod (51); the extruded inner rod (522) is slidably mounted in the outer rod (521); and the thrust spring (523) is connected between the extruded inner rod (522) and the outer rod (521).

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