Automobile sunroof sunshade curtain assembly detection device and detection method

Abstract

The application discloses an automobile sunroof sunshade curtain assembly detection equipment and a detection method thereof, which comprises a workbench as a carrier, and is provided with a clamp tool on the workbench, the clamp tool is used for fixing the detected sunshade curtain assembly and keeping the sunshade curtain having the winding freedom; a push-pull force detection module comprises a simulation block used for hooking the sunshade curtain handle end, the simulation block is connected with a first driving end and a second driving end, the first driving end provides a pre-pressure along the Z direction outward, and keeps the pre-pressure after the simulation block is hooked with the sunshade curtain handle end; a force value sensor is arranged on the driving path of the second driving end, and is used for detecting the push-pull force of the simulation block on the sunshade curtain. The application improves the push-pull force detection of the sunshade curtain, cooperates the first driving end and the second driving end, simulates the force scene of manually pulling the sunshade curtain under the actual condition, detects the pull force data, and can more accurately reflect the mechanical properties of the sunshade curtain.

Description

Technical Field

[0001] This invention relates to the field of automotive parts testing technology, specifically to a testing device and method for automotive sunroof sunshade assemblies. Background Technology

[0002] With the continuous development of the automotive industry, automotive manufacturing standards are constantly being improved and enhanced, the level of automotive parts manufacturing is also constantly improving, and the testing items for parts are also being gradually improved.

[0003] A published Chinese invention patent, CN213985489U, discloses a test machine for the push-pull force of a car sunroof sunshade. This design uses a hook to hold the sunshade, then a horizontal drive assembly simulates pushing and pulling, and a force gauge detects the pulling force to obtain the test result. While this achieves an automated testing method, this horizontal pulling test differs from the manual pulling of the sunshade in actual use, resulting in poor simulation and measurement results that deviate from real-world usage. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device for automotive sunroof sunshade assemblies to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a testing device for an automotive sunroof sunshade assembly, comprising a worktable as a carrier, on which are arranged:

[0006] Fixtures: Used to hold the sunshade assembly being inspected in place and to maintain the sunshade's freedom of roll-up;

[0007] Push-pull force detection module: includes a simulation block for hooking the handle end of the sunshade curtain. The simulation block is connected to a first drive end and a second drive end. The first drive end provides a pre-force outward along the Z direction and maintains the pre-force after the simulation block is hooked to the handle end of the sunshade curtain. The second drive end is used to drive the simulation block to slide along the direction of the sunshade curtain slide rail to simulate the sunshade curtain retraction path. A force sensor is set on the drive path of the second drive end to detect the magnitude of the push-pull force of the simulation block on the sunshade curtain.

[0008] Preferably, the fixture includes a reference groove formed by dimensional reference blocks surrounding the perimeter, used to position the sunshade curtain slide rail. After the sunshade curtain slide rail is placed into the reference groove, the manufacturing dimensional accuracy of the sunshade curtain slide rail is checked by surface difference comparison.

[0009] Preferably, the fixture further includes a shaft positioning part for positioning the sunshade curtain shaft. The shaft positioning part includes positioning seats at both ends, which keep the sunshade curtain shaft laid horizontally.

[0010] Preferably, the bottom of the fixture forms a detection cavity, and the push-pull force detection module is completely housed in the detection cavity. After the sunshade assembly is positioned by the fixture, the upper part of the sunshade assembly remains empty.

[0011] Preferably, the push-pull force detection module includes a base, on which a compression spring is installed. The upper end of the compression spring contacts the simulated block. It also includes a limiting part. The preload of the first drive end is provided by the compression spring. When the test is performed, the limiting part releases the simulated block. Under the action of the compression spring, the simulated block is pushed upward and enters the handle groove of the sunshade to hook with the sunshade. When the test is finished, the simulated block is pressed down and limited by the limiting part to maintain its initial position.

[0012] Preferably, the second drive end is driven by a lead screw, which is driven by a motor to rotate, thereby driving the simulation block to slide along the X-axis. Guide rails are provided on both sides of the push-pull force detection module, and the guide rails are used to guide in the X direction.

[0013] Preferably, the push-pull force detection module also includes an active block, which is poweredly connected to the lead screw. A force sensor is installed on the active block, and the detection end of the force sensor is connected to the base. When the lead screw rotates, the active block slides, thereby driving the simulated block to slide through the force sensor.

[0014] Preferably, the device also includes a sunshade sag detection module, which includes several distance sensors. The distance sensors are set along the bottom of the fixture and determine the sag of the sunshade by detecting the distance between the sunshade and the distance sensors at different positions.

[0015] Preferably, it includes a push-pull force detection module. When performing push-pull force detection on the sunshade, the push-pull force detection module always applies two component forces to the sunshade, including a first component force outward along the Z direction and a second component force along the X-axis of the sunshade sliding direction, thereby simulating the force situation when the sunshade is manually pulled in a real scenario.

[0016] Preferably, the first component force is achieved by a compression spring.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention improves the detection of push-pull force of sunshade curtains. By coordinating the first and second drive ends, it simulates the force scenario of manually pulling the sunshade curtain in actual conditions to detect the pull force data, which can more accurately reflect the mechanical performance of the sunshade curtain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the push-pull force detection module of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1 The vehicle sunroof sunshade assembly testing equipment shown in the figure includes a worktable 1 as a carrier, on which:

[0023] Fixture 4: Used to hold the sunshade assembly being tested in place while maintaining the sunshade's freedom to roll up; for details, refer to... Figure 1 As shown, the fixture includes a reference groove formed by dimensional reference blocks surrounding the perimeter, used to position the sunshade curtain slide rail. After the sunshade curtain slide rail is placed into the reference groove, the manufacturing dimensional accuracy of the sunshade curtain slide rail is checked by surface difference comparison. It also includes a shaft positioning part 8 for positioning the sunshade curtain shaft. The shaft positioning part 8 includes positioning seats at both ends, which keep the sunshade curtain shaft horizontally laid. In use, the sunshade curtain slide rail is simply pressed into the reference groove without any other auxiliary tools. Dimensional inspection can be performed immediately after placement, making it convenient and quick.

[0024] Push-pull force detection module 5: includes a simulation block 52 for hooking the handle end of the sunshade curtain. The simulation block 52 is connected to a first drive end and a second drive end. The first drive end provides a pre-pressure force outward along the Z direction and maintains the pre-pressure force after the simulation block is hooked with the handle end of the sunshade curtain. The second drive end is used to drive the simulation block to slide along the direction of the sunshade curtain slide rail to simulate the sunshade curtain retraction path. A force value sensor 32 is set on the drive path of the second drive end to detect the magnitude of the push-pull force of the simulation block on the sunshade curtain.

[0025] Reference Figure 2 As shown, the push-pull force detection module includes a base 51, on which a compression spring 56 is mounted. The upper end of the compression spring 56 contacts the simulation block 52. It also includes a limiting part. The preload of the first drive end is provided by the compression spring 56. During detection, the limiting part releases the simulation block, and the simulation block 52, under the action of the compression spring 56, is pushed upwards and enters the handle groove of the sunshade, thereby hooking with the sunshade. When the detection ends, the simulation block 52 is pressed down and limited by the limiting part to maintain its initial position. The limiting part can be locked using a locking pin. For example, a hole can be made at an appropriate position on the simulation block 52. In the initial position, the locking pin is inserted into the hole, keeping the simulation block 52 fixed. When testing is needed, the locking pin is pulled out, and the compression spring 56 ejects the simulation block 52.

[0026] The second drive end uses a lead screw as the drive source, which drives the lead screw to rotate through a motor, thereby driving the simulation block to slide along the X-axis. Guide rails are provided on both sides of the push-pull force detection module, and the guide rails are used to guide in the X direction.

[0027] Reference Figure 2 As shown, the connection structure of the second drive end includes an active block 31, on which a force sensor 32 is mounted. The second drive end is a servo slide 9, including a motor 92, a lead screw 93 driven by the motor 92, and a guide rail 91. The active block 31 is driven by the lead screw 93 and slidably connected to the guide rail 91. When the lead screw 93 rotates, the active block 31 slides, thereby driving the analog block 52 to slide via the force sensor 32. During sliding, the force sensor 32 is equivalent to pulling the sunshade, thus accurately measuring the pulling force. At the same time, the upward preload of the first drive end can simulate the Z-axis component force during manual pushing and pulling, thereby making the measurement results more accurate. (Refer to...) Figure 1 As shown, a simulated counterweight is placed at the edge of workbench 1. This weight can be used for the simulated calibration of the force sensor to confirm the detection accuracy. During calibration, the rope end of the weight is connected to the sensor, and then it is slid.

[0028] It also includes a sunshade drape detection module, which comprises several distance sensors 7, as referenced. Figure 1 The distance measuring sensor 7 is set along the lower edge of the fixture and fixed by the mounting platform 6. The sag of the sunshade is determined by detecting the distance between the sunshade and the distance measuring sensor at different positions.

[0029] Refer again Figure 1 As shown, in the entire device, the fixture 4 forms a frame structure corresponding to the sunshade track above the column 2, which not only serves a positioning function but also facilitates rapid dimensional measurement. A detection cavity is formed below the fixture 4, which perfectly accommodates the push-pull force detection module and the sag detection module. When not in use, this design better protects the accuracy of these structures, resulting in a more compact overall structure. Furthermore, this spatial layout has the advantage of leaving the area above the fixture 4 completely empty, without any structural obstructions. This facilitates both manual installation of the slide rail and manual push-pull force testing of the sunshade. Regardless of the testing method, the goal is to provide better feedback on the user experience. Besides standardized, digital testing using force sensors, manual push-pull testing directly reflects the feel of the sunshade. Additionally, manual push-pull testing can be cross-validated with the force sensor readings.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for automotive sunroof sunshade assembly, characterized in that: Including the worktable as the carrier, the worktable is equipped with: Fixtures: Used to hold the sunshade assembly being inspected in place and to maintain the sunshade's freedom of roll-up; Push-pull force detection module: includes a simulation block for hooking the handle end of the sunshade curtain. The simulation block is connected to a first drive end and a second drive end. The first drive end provides a pre-force outward along the Z direction and maintains the pre-force after the simulation block is hooked with the handle end of the sunshade curtain. The second drive end is used to drive the simulation block to slide along the direction of the sunshade curtain slide rail to simulate the sunshade curtain retraction path. A force sensor is set on the drive path of the second drive end to detect the magnitude of the push-pull force of the simulation block on the sunshade curtain. The push-pull force detection module includes a base with a compression spring mounted on it. The upper end of the compression spring contacts a simulated block. It also includes a limiting part. The preload of the first drive end is provided by the compression spring. When the test is performed, the limiting part releases the simulated block, and the simulated block is pushed upward under the action of the compression spring and enters the handle groove of the sunshade to hook with the sunshade. When the test is finished, the simulated block is pressed down and limited by the limiting part to maintain its initial position.

2. The testing equipment for an automotive sunroof sunshade assembly according to claim 1, characterized in that: The fixture includes a reference groove formed by dimensional reference blocks surrounding the perimeter, used to position the sunshade curtain slide rail. After the sunshade curtain slide rail is placed into the reference groove, the manufacturing dimensional accuracy of the sunshade curtain slide rail is checked by surface difference comparison.

3. The testing equipment for an automotive sunroof sunshade assembly according to claim 2, characterized in that: The fixture also includes a shaft positioning part for positioning the sunshade curtain shaft. The shaft positioning part includes positioning seats at both ends, which keep the sunshade curtain shaft laid horizontally.

4. The testing equipment for an automotive sunroof sunshade assembly according to claim 1, characterized in that: The bottom of the fixture forms a detection cavity, and the push-pull force detection module is completely housed in the detection cavity. After the sunshade assembly is positioned by the fixture, the upper part of the sunshade assembly remains empty.

5. The testing equipment for an automotive sunroof sunshade assembly according to claim 4, characterized in that: The second drive end uses a lead screw as the drive source, which drives the lead screw to rotate through a motor, thereby driving the simulation block to slide along the X-axis. Guide rails are provided on both sides of the push-pull force detection module, and the guide rails are used to guide in the X direction.

6. The testing equipment for an automotive sunroof sunshade assembly according to claim 5, characterized in that: The push-pull force detection module also includes an active block, which is powered by the lead screw. A force sensor is installed on the active block, and the detection end of the force sensor is connected to the base. When the lead screw rotates, the active block slides, thereby driving the simulated block to slide through the force sensor.

7. The testing equipment for an automotive sunroof sunshade assembly according to claim 1, characterized in that: It also includes a sunshade sag detection module, which includes several distance sensors. The distance sensors are set along the bottom of the fixture. The sag of the sunshade is determined by detecting the distance between the sunshade and the distance sensors at different positions.

8. A method for testing an automotive sunroof sunshade assembly, comprising the automotive sunroof sunshade assembly testing equipment as described in any one of claims 1-7, characterized in that: When performing push-pull force detection on the sunshade, the module always applies two components of force to the sunshade: a first component of force outward along the Z-axis and a second component of force along the X-axis of the sunshade's sliding direction, thereby simulating the force situation when manually pulling the sunshade in a real scenario.

9. A testing method for an automotive sunroof sunshade assembly according to claim 8: characterized in that: The first component force is achieved by the compression spring.

Images