A test device for a car side door stay rod switch driving assembly

Abstract

The utility model discloses a kind of automobile side door stay bar switch drive assembly test device, including the support seat of supporting switch drive module, the compression assembly of being fixed in the support seat on the compression of switch drive module, and the load / power module of being connected with the stay bar A end in the switch drive module on support seat and driving stay bar action passive test or when stay bar active action simulating load, the gap detection module of whether the gap detection module of detecting stay bar component and motor component assembly gap meet design requirement and the energized socket for with the wire harness connector on motor component and plug-in power on.The utility model solves the positioning problem caused by the separation of automobile side door switch drive assembly multiple performance test process, assembly gap detection precision deficiency and incoming material state difference, realizes the high-precision, one-stop comprehensive detection of active performance, passive resistance and axial gap of component.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and in particular relates to a testing device for a car side door strut switch drive assembly. Background Technology

[0002] In the production and assembly of automotive side door switch drive components, the correct assembly of the strut and motor is crucial to ensuring transmission accuracy and operational reliability. Currently, the industry generally relies on manual labor or decentralized testing equipment to evaluate the active operation, passive resistance, and fit clearance of the components, which suffers from low efficiency, inconsistent evaluation standards, and difficulty in comprehensively simulating real-world working conditions. Especially for micron-level precision requirements such as assembly clearance, traditional methods lack sufficient accuracy and are prone to misjudgment. Furthermore, the inconsistent strut extension lengths leading to positioning instability, and the lubrication process required during assembly, further increase the complexity of automated testing.

[0003] Therefore, there is an urgent need to develop an integrated, high-precision testing device that can perform comprehensive testing of multiple performance and assembly quality parameters at a single workstation, so as to comprehensively improve product quality and production efficiency. Utility Model Content

[0004] The main purpose of this utility model is to provide a testing device for automotive side door strut switch drive components. By integrating a load / power module, high-precision displacement sensing and adjustable auxiliary support mechanism, and innovatively combining the oil injection function with the positioning lock rod, it solves the positioning problems caused by the separation of multiple performance testing processes, insufficient accuracy of assembly gap detection and inconsistent incoming material conditions of automotive side door switch drive components. It achieves high-precision, one-stop comprehensive testing of the active performance, passive resistance and axial clearance of the components.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a testing device for a car side door strut switch drive assembly, comprising a support base supporting the switch drive module, a clamping assembly for pressing and fixing the switch drive module on the support base, a load / power module connected to end A of the strut in the switch drive module on the support base and driving the strut to perform passive testing or simulating load when the strut actively moves, a gap detection module for detecting whether the assembly gap between the strut assembly and the motor assembly meets the design requirements, and a power socket for connecting to the wiring harness connector on the motor assembly.

[0006] Furthermore, it also includes a first camera located above the support base for detecting whether there is a nut on the switch drive module placed on the support base, a second camera for detecting whether the end cap on the switch drive module is properly locked, and a barcode scanner located above the support base.

[0007] Furthermore, the support base is provided with an end face limiting plate for axially limiting the end face of the motor assembly near the B end of the support rod.

[0008] Furthermore, the load / power module includes a drive component, a first support plate driven by the drive component to move along the X direction, a first cylinder fixed on the first support plate, a second support plate driven by the first cylinder to move along the X direction, a pressure sensor that monitors the magnitude of the force exerted on the second support plate in the X direction, an A-end limiting support block fixed on the second support plate for positioning the A end of the strut, a second cylinder fixed on the second support plate, a locking rod driven by the second cylinder to extend into the A-end limiting support block in the Y direction and to lock the A end of the strut by inserting into the hole at the A end of the strut, and a first displacement sensor that monitors the moving distance of the second support plate.

[0009] Furthermore, the A-end limiting support block is provided with a limiting groove for limiting the A end of the support rod and a sensor for detecting whether there is material in the limiting groove.

[0010] Furthermore, the second support plate is slidably mounted on a pair of slide rails via a slider, and a first hand lever is provided on the second support plate.

[0011] Furthermore, it also includes an auxiliary support module that provides support for the extended section of the strut A end; the auxiliary support module includes a third support plate that is slidably disposed along the X direction, a support block fixed on the third support plate, and a second hand lever fixed on the third support plate; the support block has a conformal support groove that conforms to the outer periphery of the strut assembly.

[0012] Furthermore, an oil injection hole is provided on the circumferential surface of the locking rod, and the oil injection hole is connected to an external oil supply device pipeline.

[0013] Furthermore, a fourth support plate extending vertically downward is provided at the bottom of the second support plate, and the pressure sensor is fixed to the end of the piston rod of the first cylinder and its sensing end is fixedly connected to the fourth support plate.

[0014] Furthermore, a vertically downward-extending passive push rod is provided at the bottom of the second support plate. The bottom of the passive push rod is connected to the sensing end of the first displacement sensor. The gap detection module achieves axial pushing of the support rod by acting on the passive push rod. The gap detection module includes a third cylinder, a fifth support plate driven by the third cylinder to move in the Y direction, a fourth cylinder and a fifth cylinder fixed on the fifth support plate and arranged opposite to each other in the X direction, a first push plate driven by the fourth cylinder to push the passive push rod in the X direction, a second push plate driven by the fifth cylinder to push the passive push rod in the opposite direction in the X direction, a sixth cylinder fixed on the fifth support plate, and a second displacement sensor driven by the sixth cylinder to move in the X direction and sensing the moving distance of the passive push rod.

[0015] Compared with existing technologies, the beneficial effects of this utility model's automotive side door strut switch drive assembly testing device are as follows: By integrating a load / power module, high-precision displacement sensing, and an adjustable auxiliary support mechanism, and innovatively combining the oil injection function with the positioning lock rod, it solves the positioning problems caused by the separation of multiple performance testing processes for automotive side door switch drive assemblies, insufficient accuracy in assembly gap detection, and inconsistent incoming material conditions. It achieves high-precision, one-stop comprehensive testing of the component's active performance, passive resistance, and axial clearance. Specifically: (1) High integration of functions: The device integrates multiple functions such as active testing, passive testing, gap detection, visual inspection and automatic oiling, realizing full-process, one-stop quality inspection of automotive side door switch drive components, which significantly improves testing efficiency.

[0016] (2) High test accuracy and reliability: By combining high-precision displacement sensors with pressure sensors, and by setting up a dedicated high-precision displacement sensor for micron-level gap detection, the accuracy and reliability of various test data are ensured, providing a precise basis for product quality judgment.

[0017] (3) Strong versatility and adaptability: The use of manually adjustable limit support blocks and auxiliary support modules can flexibly adapt to products with different strut extension lengths, effectively solving the problem of unstable positioning caused by differences in incoming material conditions, and enhancing the production line adaptability of the equipment.

[0018] (4) The structure is ingenious and compact: the oil injection function is integrated into the positioning rod, realizing the synchronous completion of positioning and process execution; the functional modules are reasonably arranged in space, making the whole machine structure compact and highly integrated. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2This is a schematic diagram of the load / power module in an embodiment of the present invention; Figure 3 This is a partial structural diagram of the load / power module in an embodiment of the present invention; Figure 4 This is a partial structural diagram of the load / power module in an embodiment of the present invention; Figure 5 This is a schematic diagram of the gap detection module in an embodiment of the present invention; The numbers in the diagram represent: 100-Testing device for automotive side door strut switch drive assembly; 200-Switch drive module, 201-Motor assembly, 202-Strut assembly, 2021-Strut; 1-Support base, 11-End face limiting plate, 12-Contouring bearing groove; 2-Clamping assembly; 3-Load / power module, 31-Driver, 32-First support plate, 33-First cylinder, 34-Second support plate, 35-Pressure sensor, 36-A-end limiting support block, 361-Limiting groove, 362-Sensor, 37-Second cylinder, 38-Locking rod, 381-Injection hole, 39-First displacement sensor, 310-Slide rail, 311-First hand 312-Fourth support plate, 313-Passive push rod; 4-Gap detection module, 41-Third cylinder, 42-Fifth support plate, 43-Fourth cylinder, 44-Fifth cylinder, 45-First push plate, 46-Second push plate, 47-Sixth cylinder, 48-Second displacement sensor; 5-Power socket; 6-First camera; 7-Second camera; 8-Code scanner; 9-Auxiliary support module, 91-Third support plate, 92-Support block, 93-Second hand lever. Detailed Implementation

[0020] Example 1: Please refer to Figures 1-5 This embodiment is a testing device 100 for a car side door strut switch drive assembly, used to detect whether the strut assembly 202 and the motor assembly 201 in the car side door switch drive module 200 (hereinafter referred to as "switch drive module 200") are correctly assembled, including active testing, passive testing, and gap detection. The active testing involves powering on the motor assembly 201, which drives the strut 2021 to move axially, applying a load to the end of the strut 2021, and detecting whether the axial movement distance and axial force of the strut 2021 meet the set requirements. The passive testing involves de-powering the motor assembly 201 and using external power to drive the strut 2021 to move axially, while simultaneously monitoring the magnitude of the external power and the movement distance of the strut 2021, and detecting whether the axial movement distance and axial force of the strut 2021 meet the set requirements. The gap detection involves detecting the gap between the strut 2021 and the motor assembly 201 in the axial fit.

[0021] To meet the above three tests, this embodiment of an automotive side door strut switch drive assembly testing device 100 includes a support base 1 supporting the switch drive module 200, a clamping assembly 2 pressing and fixing the switch drive module onto the support base 1, a load / power module 3 connected to the A end of the strut in the switch drive module on the support base 1 and driving the strut 2021 to perform passive testing or simulating load when the strut 2021 actively moves, a gap detection module 4 for detecting whether the assembly gap between the strut assembly 202 and the motor assembly 201 meets the design requirements, a power socket 5 for connecting to the wiring harness connector on the motor assembly 201, a first camera 6 located above the support base 1 for detecting whether there is a nut 204 on the switch drive module placed on the support base 1, a second camera 7 for detecting whether the end cap 2023 on the switch drive module is correctly locked, and a barcode scanner 8 located above the support base 1.

[0022] The support base 1 is provided with an end face limiting plate 11 for axially limiting the end face of the motor assembly 201 near the B end of the support rod, and a conforming bearing groove 12 that conforms to the shape of the main body of the motor assembly 201.

[0023] The load / power module 3 includes a drive unit 31, a first support plate 32 driven by the drive unit 31 to move in the X direction, a first cylinder 33 fixed on the first support plate 32, a second support plate 34 driven by the first cylinder 33 to move in the X direction, a pressure sensor 35 that monitors the magnitude of the force exerted on the second support plate 34 in the X direction, an A-end limiting support block 36 fixed on the second support plate 34 for positioning the A end of the strut, a second cylinder 37 fixed on the second support plate 34, a locking rod 38 driven by the second cylinder 37 to extend in the Y direction into the A-end limiting support block 36 and to lock the A end of the strut by inserting into the hole at the A end of the strut, and a first displacement sensor 39 that monitors the moving distance of the second support plate 34.

[0024] With the drive unit 31 in place, the first cylinder 33, along with the second support plate 34 and the locking rod 38, moves the support rod A end in the X direction according to the set direction and distance of the test plan. The first cylinder 33 simulates the load on the support rod A end. The pressure sensor 35 monitors the force exerted by the support rod A end on the load end during active testing to prevent overload. It also monitors the force exerted by the first cylinder 3 on the support rod A end during passive testing to prevent overload. The first displacement sensor 39 provides real-time feedback on the axial displacement distance of the support rod 2021 during both active and passive testing.

[0025] In this embodiment, the second support plate 34 is slidably mounted on a pair of slide rails 310 via a slider, and the second support plate 34 is provided with a first pull rod 311.

[0026] After the test, the A-end limiting support block 36 will remain at the end position after the previous product test. However, since the length of the support rod 2021 extending beyond the end face of the motor assembly 201 varies when the switch drive module 200 arrives at this testing device, the A-end of its support rod is not effectively supported when the switch drive module 200 to be tested is placed on the support base 1, which can easily lead to it tipping over and falling off the support base 1 due to instability. In order to accommodate various incoming products with different extension lengths of the A-end of the support rod, this embodiment also includes an auxiliary support module 9 to provide support for the A-end of the support rod. The auxiliary support module 9 includes a third support plate 91 slidably mounted on the slide rail 310, a support block 92 fixed on the third support plate 91, and a second pull rod 93 fixed on the third support plate 91. The support block 92 has a contoured support groove (not shown in the figure) that conforms to the outer periphery of the support rod assembly 202. When placing the switch drive module, the operator first places the motor assembly 201 on the support base 1, and then adjusts the position of the support block 92 on the slide rail 310 by holding the second pull rod 93 according to the position of the support rod A end, so that the support rod A end sits on the support block 92. Therefore, no matter what axial position the support rod A end in the switch drive module 200 is in when the material is received, the support block 92 can be adjusted to support the support rod A end.

[0027] The A-end limiting support block 36 is provided with a limiting groove 361 for limiting the A-end of the support rod and a sensor 362 for detecting whether the A-end of the support rod is fully inserted into the limiting groove 361. When placing the switch drive module 200, the operator places the motor assembly 201 on the support base 1, and then adjusts the support block 92 to support the A-end of the support rod. The drive component 31 drives the second support plate 34 to bring the A-end limiting support block 36 closer to the A-end of the support rod. The A-end of the support rod gradually extends into the limiting groove 361. When the sensing end of the sensor 362 abuts against the A-end of the support rod, a product positioning signal is detected. Then, the second cylinder 37 drives the locking rod 38 to extend and insert into the hole at the A-end of the support rod to lock the A-end of the support rod.

[0028] According to the process requirements of the switch drive module 200, oil injection is also required in the hole at end A of the support rod. To achieve this process step, this embodiment provides an oil spray hole 381 on the circumferential surface of the locking rod 38. The oil spray hole 381 is connected to the external oil supply device pipeline through the internal channel of the locking rod 38. While the locking rod 38 is inserted into the hole at end A of the support rod for positioning, the oil spraying operation on the inner wall surface of the hole can be completed through the oil spray hole 381, thus meeting the oil spraying process requirements.

[0029] The bottom of the second support plate 34 is provided with a fourth support plate 312 extending vertically downward. The pressure sensor 35 is fixed to the end of the piston rod of the first cylinder 33, and its sensing end is fixedly connected to the fourth support plate 312. The bottom of the second support plate 34 is also provided with a passive push rod 313 extending vertically downward. The bottom of the passive push rod 313 is connected to the sensing end of the first displacement sensor 39. The gap detection module 4 realizes the axial push of the support rod 2021 by acting on the passive push rod 313.

[0030] The gap detection module 4 includes a third cylinder 41, a fifth support plate 42 driven by the third cylinder 41 to move in the Y direction, a fourth cylinder 43 and a fifth cylinder 44 fixed on the fifth support plate 42 and arranged opposite each other in the X direction, a first push plate 45 driven by the fourth cylinder 43 to push the passive push rod 313 in the X direction, a second push plate 46 driven by the fifth cylinder 44 to push the passive push rod 313 in the opposite X direction, a sixth cylinder 47 fixed on the fifth support plate 42, and a second displacement sensor 48 driven by the sixth cylinder 47 to move in the X direction and to sense the moving distance of the passive push rod 313. Initially, the third cylinder 41 is in a retracted state. When gap detection is required, the third cylinder 41 extends, and the first push plate 45 and the second push plate 46 are positioned on both sides of the passive push rod 313 in the X direction. The fourth cylinder 43 and the fifth cylinder 44 can drive the passive push rod 313 to move forward and backward in the X direction. The sixth cylinder 47 drives the second displacement sensor 48 to contact the passive push rod 313, and monitors the displacement of the passive push rod 313 when the first push plate 45 and the second push plate 46 drive the passive push rod 313 to move, thereby realizing the automatic detection of the assembly gap between the support rod assembly 202 and the motor assembly 201. Since the detection accuracy of the first displacement sensor 39 is insufficient, this embodiment uses the second displacement sensor 48 to detect the assembly gap between the support rod 2021 in the support rod assembly 202 and the gear shaft in the motor assembly 201.

[0031] The workflow of the automotive side door strut switch drive assembly testing device 100 in this embodiment includes: (1) Product loading: Place the switch drive module 200 on the support base 1, move the support block 92 to the appropriate position, place the side end of the motor assembly 201 facing the B end of the support rod against the end limit plate 11, and place the A end of the support rod on the support block 92. Use the clamping assembly 2 to clamp and fix the motor assembly 201, and finally plug the wire harness connector into the power socket 5 to complete the loading. (2) Positioning and oiling of the strut end: The drive unit 31 drives the second support plate 34 to bring the A-end limiting support block 36 close to the A end of the strut. The A end of the strut gradually extends into the limiting groove 361. When the sensing end of the sensor 362 abuts against the A end of the strut, the second cylinder 37 drives the locking rod 38 to be inserted into the hole of the A end of the strut, thereby realizing the positioning and locking of the A end of the strut; oil is injected into the inner wall of the hole through the oil injection hole 381. (3) Nut end cap fastening quality inspection: The first camera 6 checks whether the nut is properly fastened at the B end of the strut, and the second camera 7 checks whether the end cap is properly fastened on the side of the motor assembly 201 facing the A end of the strut. (4) Active test: Power on the motor assembly 201 and send a drive command. The motor assembly 201 drives the support rod 2021 to move axially. At this time, the first cylinder 33 simulates the load. The pressure sensor 35 monitors the magnitude of the pulling or pushing force of the piston rod of the first cylinder 33 driven by the support rod 2021 during this process. At the same time, the first displacement sensor 39 feeds back the displacement distance of the support rod 2021 during this process. If the pressure curve collected by the pressure sensor 35 is within the set range and the movement position parameters fed back by the first displacement sensor 39 are also correct, then the active test is determined to be OK. (5) Passive test: The motor assembly 201 is de-energized, the first cylinder 33 maintains a certain pressure state, and the drive component 31 drives the A end of the support rod to move axially. The pressure sensor 35 monitors the magnitude of the pulling or pushing force of the piston rod of the first cylinder 33 driving the support rod 2021 to move during this process. At the same time, the first displacement sensor 39 feeds back the displacement distance of the support rod 2021 during this process. If the pressure curve collected by the pressure sensor 35 is within the set range, and the movement position parameters fed back by the first displacement sensor 39 are also correct, then the passive test is determined to be OK. (6) Gap test: Drive member 31 drives the support rod A end to the gap detection position, and the first cylinder 33 and drive member 31 cancel power; the third cylinder 41 extends, and the sixth cylinder 47 drives the second displacement sensor 48 to abut against the passive push rod 313. At this time, the first push plate 45 and the second push plate 46 are located on both sides of the passive push rod 313 in the X direction; the fourth cylinder 43 first drives the first push plate 45 to push the passive push rod 313 to the leftmost position in the X direction. At this time, the second displacement sensor 48 returns to zero and obtains the reference position; then the fifth cylinder 44 drives the second push plate 46 to push the passive push rod 313 to the right in the X direction until it can no longer be pushed. At this time, the second displacement sensor 48 obtains a displacement data; repeat this process to obtain multiple displacement data. Use multiple displacement data to determine whether the fit clearance between the gear shaft and the support rod in the motor assembly meets the design requirements and complete the gap detection.

[0032] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A testing device for a car side door strut switch drive assembly, characterized in that, The device includes a support base for supporting the switch drive module, a clamping assembly for pressing and fixing the switch drive module onto the support base, a load / power module connected to end A of the strut in the switch drive module on the support base and driving the strut to perform passive testing or to simulate load when the strut actively moves, a gap detection module for detecting whether the assembly gap between the strut assembly and the motor assembly meets the design requirements, and a power socket for connecting to the wiring harness connector on the motor assembly.

2. The automotive side door strut switch drive assembly testing device as described in claim 1, characterized in that, It also includes a first camera located above the support base for detecting whether there is a nut on the switch drive module placed on the support base, a second camera for detecting whether the end cap on the switch drive module is properly locked, and a barcode scanner located above the support base.

3. The automotive side door strut switch drive assembly testing device as described in claim 1, characterized in that, The support base is provided with an end face limiting plate that axially limits the end face of the motor assembly near the B end of the support rod.

4. The automotive side door strut switch drive assembly testing device as described in claim 1, characterized in that, The load / power module includes a drive unit, a first support plate driven by the drive unit to move in the X direction, a first cylinder fixed on the first support plate, a second support plate driven by the first cylinder to move in the X direction, a pressure sensor that monitors the magnitude of the force exerted on the second support plate in the X direction, an A-end limiting support block fixed on the second support plate for positioning the A end of the strut, a second cylinder fixed on the second support plate, a locking rod driven by the second cylinder to extend in the Y direction into the A-end limiting support block and locking the A end of the strut by inserting into the hole at the A end of the strut, and a first displacement sensor that monitors the moving distance of the second support plate.

5. The automotive side door strut switch drive assembly testing device as described in claim 4, characterized in that, The A-end limiting support block is provided with a limiting groove for limiting the A end of the support rod and a sensor for detecting whether there is material in the limiting groove.

6. The automotive side door strut switch drive assembly testing device as described in claim 4, characterized in that, The second support plate is slidably mounted on a pair of slide rails via a slider, and a first hand lever is provided on the second support plate.

7. The automotive side door strut switch drive assembly testing device as described in claim 1, characterized in that, It also includes an auxiliary support module that provides support for the extended section of the strut A end; the auxiliary support module includes a third support plate that is slidably disposed along the X direction, a support block fixed on the third support plate, and a second hand lever fixed on the third support plate; the support block has a conformal support groove that conforms to the outer periphery of the strut assembly.

8. The automotive side door strut switch drive assembly testing device as described in claim 4, characterized in that, The locking rod has an oil injection hole on its circumferential surface, and the oil injection hole is connected to an external oil supply device pipeline.

9. The automotive side door strut switch drive assembly testing device as described in claim 4, characterized in that, The bottom of the second support plate is provided with a fourth support plate extending vertically downward. The pressure sensor is fixed to the end of the piston rod of the first cylinder and its sensing end is fixedly connected to the fourth support plate.

10. The automotive side door strut switch drive assembly testing device as described in claim 4, characterized in that, The bottom of the second support plate is provided with a vertically downward-extending passive push rod. The bottom of the passive push rod is connected to the sensing end of the first displacement sensor. The gap detection module realizes the axial push of the support rod by acting on the passive push rod. The gap detection module includes a third cylinder, a fifth support plate driven by the third cylinder to move in the Y direction, a fourth cylinder and a fifth cylinder fixed on the fifth support plate and arranged opposite to each other in the X direction, a first push plate driven by the fourth cylinder to push the passive push rod in the X direction, a second push plate driven by the fifth cylinder to push the passive push rod in the opposite direction in the X direction, a sixth cylinder fixed on the fifth support plate, and a second displacement sensor driven by the sixth cylinder to move in the X direction and sensing the moving distance of the passive push rod.

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