A test device for electric car seat tracks

Abstract

This invention relates to the field of automotive electric seat track technology, specifically to a testing device for automotive electric seat tracks. The device includes a testing platform, a U-shaped testing frame, a friction block assembly, guide blocks, and a slider. A groove is formed on one side of the top of the testing platform. The U-shaped testing frame and the friction block assembly are detachably disposed within the groove. The friction block assembly is symmetrically slidably disposed on the two outer walls of the U-shaped testing frame along its length. Guide blocks are symmetrically disposed on the top of the U-shaped testing frame. The slider is slidably disposed between the guide blocks, and the slider engages with the friction block assembly through friction. The detachable friction block assembly, in conjunction with a locking assembly, allows for rapid replacement of the friction block assembly, facilitating testing of track performance under different wear conditions and significantly improving testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive electric seat track technology, and more specifically to an automotive electric seat track testing device. Background Technology

[0002] With the increasing popularity of power car seats, the durability and stability of the seat tracks are key indicators affecting passenger safety and comfort. Therefore, power car seats require testing of the seat tracks' durability, stability, and safety before leaving the factory.

[0003] Existing electric seat track testing devices mostly use fixed friction mechanisms, which cannot easily adjust the friction coefficient or wear state according to the track wear during actual use of the electric seat (such as adding or removing friction pads or replacing materials). As a result, the test results are difficult to reflect the true performance degradation law under the wear of the track throughout its entire life cycle.

[0004] Therefore, it is necessary to design an electric seat track testing device for automobiles that can adjust the friction conditions according to requirements, in order to overcome the above-mentioned defects. Summary of the Invention

[0005] The technical implementation of the present invention is as follows: an electric seat track testing device for automobiles, comprising a testing platform, a U-shaped testing frame, a friction block assembly, a guide block, and a slider. A groove is provided on one side of the top of the testing platform, and the U-shaped testing frame and the friction block assembly are detachably disposed in the groove. The friction block assembly is symmetrically slidably disposed on the two outer walls of the U-shaped testing frame along its length. The guide block is symmetrically disposed on the top of the U-shaped testing frame, and the slider is slidably disposed between the guide blocks. The slider is in frictional engagement with the friction block assembly.

[0006] Optionally, the test platform and the friction block assembly are provided with corresponding limiting grooves. A locking component for limiting the friction block assembly on the test platform is provided in the limiting groove. The locking component includes a locking block, a vertical rod, and a return spring. The vertical rod is slidably disposed in the limiting groove of the friction block assembly. The locking block is provided at the upper end of the vertical rod. The return spring is provided between the locking block and the groove wall of the limiting groove of the friction block assembly. The locking block and the vertical rod form a "T"-shaped limiting mechanism that engages with the limiting groove of the friction block assembly and the test platform to fix the friction block assembly on the test platform.

[0007] Optionally, the testing device further includes a connecting horizontal plate installed between the ends of the two guide blocks, a motor installed on the outer wall of the U-shaped test frame, and a lead screw connected to the output shaft of the motor. The lead screw rotates through the connecting horizontal plate and is threadedly connected to the slider.

[0008] Optionally, the testing device further includes a base frame, a first hinge, a hydraulic rod, and a second hinge. The base frame is located directly below the testing platform. The first hinge is symmetrically and rotatably mounted on one side of the top of the base frame. The base frame is hinged to the testing platform via the first hinge. The hydraulic rod is arranged in parallel on the other side of the top of the base frame. The movable end of the hydraulic rod is hinged to the second hinge, which is rotatably mounted on the bottom of the testing platform.

[0009] Optionally, the rotation angle of the second hinge is 0-90 degrees.

[0010] Optionally, a support frame is symmetrically provided at the center of the top surface of the base frame to provide support for the center of the test platform, and the support frame is telescopic.

[0011] Optionally, a side mounting block is detachably mounted on the side wall of the slider, and a roller is rotatably mounted on the side mounting block. The roller rolls along the top surface of the U-shaped test frame. A speed measuring component is mounted on the side mounting block, and a synchronous belt drive component is provided between the rotating shaft of the speed measuring component and the roller. When the roller rotates, the rotating shaft of the speed measuring component is driven to rotate through the synchronous belt drive component.

[0012] Preferably, the bottom of the side mounting block is provided with a cleaning brush for cleaning the roller rolling channel.

[0013] Compared with the prior art, the present invention has the following advantages: 1. By cooperating with the detachable friction block assembly and the locking assembly, the friction block assembly can be quickly replaced, which facilitates the testing of track performance under different wear conditions and significantly improves testing efficiency.

[0014] 2. The hydraulic rod drives the test platform to tilt, which can accurately simulate the working conditions of vehicles climbing and pitching. Combined with the motor-driven slider movement, it can comprehensively test the durability of the track under dynamic angles. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the test platform, U-shaped test frame, slider and other components of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the components of the present invention, including the U-shaped test frame, guide block, connecting cross plate, slider, and motor.

[0018] Figure 4 This is a partial three-dimensional structural diagram of the friction block assembly and the locking component of the present invention.

[0019] Figure 5This is a three-dimensional structural diagram of the card slot component of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of the test platform, base frame, first hinge, hydraulic rod, second hinge, and support frame of the present invention.

[0021] Figure 7 This is a three-dimensional structural diagram of the guide block, slider, side mounting block, roller, and other components of the present invention.

[0022] Figure 8 This is a three-dimensional structural diagram of the side mounting block, roller, speed measuring component, and synchronous belt drive component of the present invention.

[0023] The components in the attached diagram are labeled as follows: 1: Test platform, 2: U-shaped test frame, 21: Friction block assembly, 22: Guide block, 221: Connecting horizontal plate, 3: Slider, 31: Side mounting block, 311: Cleaning brush, 4: Motor, 41: Lead screw, 5: Positioning assembly, 51: Locking block, 52: Vertical pole, 53: Return spring, 6: Base frame, 7: First hinge, 8: Hydraulic rod, 9: Second hinge, 10: Support frame, 11: Roller, 12: Speed ​​measuring assembly, 13: Synchronous belt drive assembly. Detailed Implementation

[0024] 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.

[0025] Example: A test device for the electric seat track of an automobile, such as Figure 1 , Figure 2 and Figure 3As shown, the test platform includes a test platform 1, a U-shaped test frame 2, a friction block assembly 21, a guide block 22, and a slider 3. The test platform 1 has a groove on its top front side, and elongated through holes are symmetrically arranged within the groove. This design helps reduce the weight of the test platform 1. The U-shaped test frame 2 and the friction block assembly 21 are detachably mounted within the groove. The U-shaped test frame 2 has through holes adapted to the elongated through holes of the test platform 1. The friction block assembly 21 is symmetrically slidably mounted on the two outer walls of the U-shaped test frame 2 along its length. The guide blocks 22 are symmetrically arranged on the top of the U-shaped test frame 2, and the slider 3 is slidably mounted between the guide blocks 22. The slider 3 and the friction block assembly 21 form a friction pair. Friction strips are evenly spaced along the length of the top of the friction block assembly 21. The spacing between the friction strips and the friction coefficient of the friction strips determine the frictional force between the friction block assembly 21 and the slider 3. By replacing different friction block assemblies 21, the wear state of the track is simulated, and the frictional resistance and service life of the electric seat track are tested.

[0026] like Figure 2 , Figure 4 and Figure 5 As shown, the test platform 1 and the friction block assembly 21 are provided with corresponding limiting grooves. A locking component 5 for limiting the friction block assembly 21 on the test platform 1 is provided within the limiting groove. The locking component 5 includes a locking block 51, a vertical rod 52, and a return spring 53. The vertical rod 52 is slidably disposed within the limiting groove of the friction block assembly 21. The locking block 51 is provided at the upper end of the vertical rod 52. A certain distance is provided between the locking block 51 and the groove wall of the limiting groove of the friction block assembly 21. The return spring 53 has two ends connected to the bottom groove wall of the limiting groove of the locking block 51 and the friction block group 21, respectively. The return spring 53 is wound around the upright 52. The return spring 53 is a tension spring. In its normal state, the locking block 51 and the upright 52 form a "T"-shaped limiting mechanism that is locked into the limiting groove of the friction block group 21 and the test platform 1, thereby stably fixing the friction block group 21 on the test platform 1.

[0027] like Figure 3 As shown, this testing device also includes a connecting horizontal plate 221 installed between the ends of the two guide blocks 22, a motor 4 installed on the outer wall of the U-shaped test frame 2, and a lead screw 41 connected to the output shaft of the motor 4. The lead screw 41 rotates through the connecting horizontal plate 221 and is threadedly connected to the slider 3. When the motor 4 is working, the output shaft of the motor 4 drives the lead screw 41 to rotate, thereby driving the slider 3 to slide horizontally along the guide block 22, and the slider 3 and the friction block assembly 21 form a friction kinematic pair through frictional engagement.

[0028] In use, the seat is installed on the slider 3. Friction block sets 21 with different friction coefficients are selected according to the testing requirements. The friction block sets 21 are then pushed into the groove of the testing platform 1. When the locking assembly 5 moves to the front of the testing platform 1 and makes contact, the locking block 51 is pulled upwards to disengage it from the limiting groove. The return spring 53 is stretched and deformed. The friction block sets 21 are then pushed towards the rear of the groove of the testing platform 1 until the locking block 51 reaches the limiting groove of the testing platform 1. At this point, the locking block 51 is directly above the limiting groove of the testing platform 1. The locking block 51 is then released, and under the action of the return spring 53, it engages with the limiting groove, thus completing the locking and fixing the friction block set 21 in place. The friction block assembly 21 is placed in the groove of the test platform 1. When it is necessary to replace the friction block assembly 21, first pull the locking block 51 upward to disengage it from the limiting groove of the test platform 1 to release the locking function of the locking block 51. Then, pull the friction block assembly 21 outward to remove it from the test platform 1. In this way, friction block assemblies 21 with different friction coefficients can be selected according to the test requirements. During the test, the motor 4 drives the lead screw 41 to rotate, thereby driving the slider 3 to move horizontally along the guide block 22. The slider 3 makes frictional contact with the friction block assembly 21 on the U-shaped test frame 2. By replacing different friction block assemblies 21, the friction conditions are adjusted to simulate the track wear state and test the friction resistance and service life of the electric seat track.

[0029] like Figure 1 and Figure 6As shown, this testing device also includes a base frame 6, a first hinge 7, a hydraulic rod 8, and a second hinge 9. The base frame 6 is located directly below the testing platform 1. The first hinge 7 is symmetrically rotatably mounted on one side of the top of the base frame 6, and the base frame 6 is hinged to the testing platform 1 through the first hinge 7. The hydraulic rod 8 is arranged side by side on the other side of the top of the base frame 6. The movable end of the hydraulic rod 8 is hinged to the second hinge 9, which is rotatably mounted on the bottom of the testing platform 1. The rotation angle of the second hinge 9 is 0-90 degrees. When the hydraulic rod 8 extends upward, it drives the second hinge 9 to rotate upward around its hinge point with the testing platform 1 until the second hinge 9 is connected to the hydraulic rod 9. When the hydraulic rod 8 contacts the bottom of the test platform 1 at its hinge point, the second hinge 9 is in close contact with the test platform 1. At this time, as the hydraulic rod 8 continues to extend, the test platform 1 tilts upward with its hinge point with the first hinge 7 as the center, achieving a state of being lower in the front and higher in the back, thus simulating the car's diving condition. When the hydraulic rod 8 retracts downward, it drags the second hinge 9 to rotate downward with its hinge point with the test platform 1 as the center, until the second hinge 9 and the hydraulic rod 8 are on the same straight line. At this time, as the hydraulic rod 8 continues to retract, the test platform 1 tilts downward with its hinge point with the first hinge 7 as the center, achieving a state of being higher in the front and lower in the back, thus simulating the car's climbing condition.

[0030] like Figure 6 As shown, a support frame 10 is symmetrically provided in the middle of the top surface of the base frame 6 to provide support for the middle of the test platform 1. The support frame 10 is telescopic to adapt to the height change of the test platform 1.

[0031] The test platform 1 is rotated around the first hinge 7 by extending and retracting the hydraulic rod 8, thereby adjusting the tilt of the test platform 1 and changing the tilt angle of the U-shaped test frame 2, thus simulating the stability and durability test of the seat track under vehicle climbing or pitching conditions.

[0032] like Figure 7 and Figure 8As shown, a side mounting block 31 is detachably mounted on the side wall of the slider 3. A roller 11 is rotatably mounted on the side mounting block 31. A channel for the roller 11 to roll is opened on the top surface of the U-shaped test frame 2. A speed measuring component 12 is mounted on the side mounting block 31. A speed measuring sensor is installed inside the speed measuring component 12. A synchronous belt drive component 13 is installed between the rotating shaft of the speed measuring component 12 and the roller 11. When the roller 11 rotates, it drives the rotating shaft of the speed measuring component 12 to rotate through the synchronous belt drive component 13. When the rotating shaft of the speed measuring component 12 rotates, it can activate the speed measuring sensor installed inside it, and monitor the movement speed of the slider 3 in real time through the speed measuring sensor.

[0033] Furthermore, to ensure the normal rolling of the roller 11 and thus the normal speed measuring operation of the speed measuring component 12, a cleaning brush 311 for cleaning the rolling channel of the roller 11 is provided at the bottom of the side mounting block 31. When the side mounting block 31 moves with the slider 3, the cleaning brush 311 moves relative to the channel for the roller 11 to roll on the top surface of the friction block assembly 21, thereby cleaning the channel for the roller 11 to roll on the top surface of the friction block assembly 21.

[0034] When the slider 3 moves along the guide block 22, the roller 11 rotates accordingly. The roller 11 drives the shaft of the speed measuring component 12 to rotate through the synchronous belt drive assembly 13, thereby activating the internal sensor to monitor the speed of the slider 3 in real time. If the speed is abnormal (such as due to a change in resistance caused by wear of the friction block), the system can trigger an alarm and record the data.

[0035] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents.

Claims

1. A test device for an electric seat track in a car, characterized in that, The test platform (1) includes a test frame (2), a U-shaped test frame (2), a friction block assembly (21), a guide block (22), and a slider (3). A groove is provided on one side of the top of the test platform (1). The U-shaped test frame (2) and the friction block assembly (21) are detachably disposed within the groove. The friction block assembly (21) is symmetrically slidably disposed on the two outer walls of the U-shaped test frame (2) along its length. The guide block (22) is symmetrically disposed on the top of the U-shaped test frame (2). The slider (3) is slidably disposed between the guide blocks (22). The slider (3) and the friction block assembly (21) are connected. 1) Friction fit; This test device also includes a base frame (6), a first hinge (7), a hydraulic rod (8) and a second hinge (9). The base frame (6) is located directly below the test platform (1). The first hinge (7) is symmetrically rotatably arranged on one side of the top of the base frame (6). The base frame (6) is hinged to the test platform (1) through the first hinge (7). The hydraulic rod (8) is arranged in parallel on the other side of the top of the base frame (6). The movable end of the hydraulic rod (8) is hinged to the second hinge (9) rotatably arranged at the bottom of the test platform (1).

2. The electric seat track testing device for automobiles according to claim 1, characterized in that, The test platform (1) and the friction block group (21) are provided with corresponding limiting grooves. The limiting grooves are provided with a locking component (5) for limiting the friction block group (21) on the test platform (1). The locking component (5) includes a locking block (51), a vertical rod (52) and a return spring (53). The vertical rod (52) is slidably disposed in the limiting groove of the friction block group (21). The upper end of the vertical rod (52) is provided with the locking block (51). The return spring (53) is disposed between the locking block (51) and the groove wall of the limiting groove of the friction block group (21). The locking block (51) and the vertical rod (52) form a "T" shaped limiting mechanism that is locked into the limiting groove of the friction block group (21) and the test platform (1) to fix the friction block group (21) on the test platform (1).

3. The electric seat track testing device for automobiles according to claim 2, characterized in that, The testing device also includes a connecting plate (221) installed between the ends of the two guide blocks (22), a motor (4) installed on the outer wall of the U-shaped test frame (2), and a lead screw (41) connected to the output shaft of the motor (4). The lead screw (41) rotates through the connecting plate (221) and is threadedly connected to the slider (3).

4. The electric seat track testing device for automobiles according to claim 1, characterized in that, The rotation angle of the second hinge (9) is 0-90 degrees.

5. The electric seat track testing device for automobiles according to claim 1, characterized in that, The base frame (6) is also symmetrically provided with a support frame (10) at the center of the top surface to provide support for the center of the test platform (1).

6. The electric seat track testing device for automobiles according to claim 5, characterized in that, The support frame (10) is retractable.

7. The electric seat track testing device for automobiles according to claim 1, characterized in that, The slider (3) is detachably mounted with a side mounting block (31). A roller (11) is rotatably mounted on the side mounting block (31). The roller (11) rolls along the top surface of the U-shaped test frame (2). A speed measuring component (12) is mounted on the side mounting block (31). A synchronous belt drive component (13) is provided between the rotating shaft of the speed measuring component (12) and the roller (11). When the roller (11) rotates, it drives the rotating shaft of the speed measuring component (12) to rotate through the synchronous belt drive component (13).

8. The electric seat track testing device for automobiles according to claim 7, characterized in that, The bottom of the side mounting block (31) is provided with a cleaning brush (311) for cleaning the rolling channel of the roller (11).

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