Dual-track durable device for wheel wire harness

Abstract

The utility model discloses a wheel harness double-track durable device, which comprises two track control mechanisms, a crank rocker mechanism and a power source, a crank of the crank rocker mechanism is connected with the power source, two sides of a rocker of the crank rocker mechanism are respectively connected with the track control mechanisms, and the track control mechanisms are connected with the power source. The track control mechanism comprises a fixedly-arranged cam plate and a movable sliding block, the cam plate is provided with a through first linear cam groove, and one end of the sliding block is provided with a guide column used for being matched with the first linear cam groove and a wire harness fixing metal plate used for fixing a wire harness. A second linear cam groove is formed in the other end of the sliding block, a fixedly-arranged cam is arranged in the second linear cam groove in a matched mode, and the guide column is connected with the rocker through a first connecting rod. According to the utility model, the reliability and durability of a wire harness product in the actual use process can be ensured.

Description

Technical Field

[0001] This utility model relates to a dual-track durability device for wire harnesses, belonging to the field of wheel wire harness testing technology, and particularly to a dual-track durability device for wheel wire harnesses. Background Technology

[0002] With the rapid development and technological innovation of the automotive industry, vehicle electrical systems are becoming increasingly complex, placing more stringent demands on the reliability and durability testing of automotive wiring harnesses. In modern automobiles, wiring harnesses, especially those around the wheels, not only need to withstand complex mechanical stresses but also adapt to multi-directional movement trajectories. Traditional wiring harness testing equipment often can only simulate simple movement paths, making it difficult to realistically reproduce the multi-point, multi-angle movement states experienced by wiring harnesses in actual working environments.

[0003] Major automakers and component suppliers have discovered in practical applications that wheel wiring harnesses undergo complex spatial displacements and deformations during steering, suspension movements, and other operations. This dynamic load involves not only reciprocating motion in a single plane but also coordinated changes between multiple points of motion, as well as torsion and bending at different angles. The limitations of traditional testing equipment make it difficult to comprehensively evaluate the durability performance of wiring harnesses under these complex conditions, thus failing to provide sufficient assurance for product quality.

[0004] To solve the aforementioned technical challenges, it is of great significance to develop a durability testing device that can accurately simulate the actual operating state of wheel wiring harnesses. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a dual-track durability device for wheel wiring harnesses, which has the ability to simulate multiple motion points, multiple angles and diverse trajectories, in order to meet the high standard requirements of modern automotive wiring harness testing and ensure the reliability and durability of wiring harness products in actual use.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model discloses a dual-track durability device for wheel wiring harnesses, including two track control mechanisms, a crank-rocker mechanism, and a power source. The crank of the crank-rocker mechanism is connected to the power source, and the track control mechanisms are respectively connected to both sides of the rocker arm of the crank-rocker mechanism. The track control mechanism includes a fixed cam plate and a movable slider. The cam plate is provided with a through first linear cam groove. One end of the slider is provided with a guide post for cooperating with the first linear cam groove and a wiring harness fixing sheet metal for fixing the wiring harness. The other end of the slider is provided with a second linear cam groove. A fixed cam is fitted in the second linear cam groove. The guide post is connected to the rocker arm through a first connecting rod.

[0007] In a preferred embodiment of the present invention, there is an acute angle between the first linear cam groove and the second linear cam groove.

[0008] In a preferred embodiment of this utility model, the wire harness fixing plate includes a vertical plate fixed to the slider, and the vertical plate is provided with a slot for inserting the wire harness.

[0009] In a preferred embodiment of this utility model, a reinforcing rib is provided between the upright plate and the slider.

[0010] In a preferred embodiment of this utility model, the rocker arm is a long strip plate, the middle part of the rocker arm is rotatably connected to a hinge shaft fixed along the Z-direction, the two ends of the rocker arm are respectively connected by the first connecting rod, the hinge shaft and at least one of the first connecting rods are rotatably connected by a second connecting rod, and the second connecting rod and the crank are rotatably connected to each other.

[0011] In a preferred embodiment of this utility model, the output end of the power source is connected to the crank.

[0012] In a preferred embodiment of this utility model, the power source is a motor arranged extending along the Z-direction.

[0013] In a preferred embodiment of this invention, the two trajectory control mechanisms are located at different heights in the XY plane along the Z-axis.

[0014] In a preferred embodiment of the present invention, a base plate is included, wherein a first support block for mounting a trajectory control mechanism and a second support block for mounting a power source are provided on the base plate.

[0015] In a preferred embodiment of the present invention, a wire harness fixing end is further included to fix all wire harnesses.

[0016] The beneficial effects of this utility model are as follows: This utility model discloses a durability testing device that can accurately simulate the actual operating state of wheel wiring harnesses. This device needs to have the ability to simulate multiple motion points, multiple angles and diverse trajectories in order to meet the high standard requirements of modern automotive wiring harness testing and ensure the reliability and durability of wiring harness products in actual use.

[0017] Furthermore, this invention effectively solves the technical problem that existing wire harness testing equipment struggles to simulate complex motion trajectories. The device employs a combined design of two trajectory control mechanisms, a crank-rocker mechanism, and a power source, enabling precise simulation and testing of multiple motion points, angles, and trajectories of wheel wire harnesses.

[0018] Furthermore, the two trajectory control mechanisms in this invention, through the cooperation of the cam plate and the linear cam groove, enable the slider to drive the wire harness fixing sheet metal to generate complex spatial movements, which can accurately reproduce the movement state of the wheel wire harness in the actual working environment. In particular, the acute angle structure set between the first and second linear cam grooves enhances the device's ability to simulate movements in different directions and effectively tests the durability performance of the wire harness under complex angle changes.

[0019] Furthermore, the crank-rocker mechanism of this invention serves as a motion transmission unit, converting the rotational motion of the power source into the oscillating motion of the rocker, which in turn drives the trajectory control mechanisms on both sides through a slider system, achieving synchronous or differentiated wire harness motion simulation. This mechanism design ensures the smoothness and repeatability of the test trajectory, improving the accuracy and reliability of the test results.

[0020] Furthermore, this invention employs a trajectory control mechanism arranged at different heights along the Z-axis, enabling the testing process to simulate the movement of the wiring harness in three-dimensional space, comprehensively covering various motion states that the wheel wiring harness may encounter in actual use. Simultaneously, the slot design and reinforcing rib structure of the wiring harness fixing sheet metal ensure the secure fixation of the wiring harness and the structural stability of the testing device during the testing process.

[0021] Furthermore, this utility model uses an electric motor as a power source and combines it with a carefully designed support structure. This device features stable operation, simple operation, and high testing accuracy, which can meet the stringent requirements of modern automotive manufacturing for wiring harness durability testing. It provides strong technical support for improving the quality and reliability of automotive wiring harnesses and has significant practical value and promising prospects for widespread application. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of the screen durability testing device of this utility model;

[0024] Figure 2 Top view of the screen durability testing device of this utility model;

[0025] Figure 3 A schematic diagram of the test state of the screen durability testing device of this utility model;

[0026] Figure 4 Partial view of the test state of the screen durability testing device of this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings:

[0029] like Figure 1-2 As shown, this utility model provides a dual-track durability device for wheel wiring harnesses, including two track control mechanisms, a crank-rocker mechanism, and a power source. The crank 5 of the crank-rocker mechanism is connected to the power source, and the track control mechanisms are connected to both sides of the rocker arm 7 of the crank-rocker mechanism. Each track control mechanism includes a fixed cam plate and a movable slider. The cam plate has a through-hole first linear cam groove. One end of the slider has a guide post for engaging with the first linear cam groove and a wiring harness fixing sheet metal for fixing the wiring harness. The other end of the slider has a second linear cam groove, in which a fixed cam is fitted. The guide post is connected to the rocker arm 7 via a first connecting rod.

[0030] An acute angle exists between the first and second linear cam grooves. The wiring harness fixing plate includes a vertical plate fixed to the slider, and the vertical plate is provided with a slot for inserting the wiring harness. A reinforcing rib is provided between the vertical plate and the slider. The rocker arm 7 is a long strip plate, and its middle part is rotatably connected to a hinge shaft fixed along the Z-axis. The two ends of the rocker arm 7 are respectively connected by a first connecting rod, and a second connecting rod 6 is rotatably connected between the hinge shaft and at least one first connecting rod. The second connecting rod 6 and the crank 5 are rotatably connected to each other. The output end of the power source is connected to the crank 5. The power source is a motor 4 extending along the Z-axis. The two trajectory control mechanisms are located at different heights in the XY plane along the Z-axis.

[0031] This utility model also includes a base plate 14, on which a first support block for mounting the trajectory control mechanism and a second support block for mounting the power source are provided. In addition, it includes a wire harness fixing end 13 for fixing all wire harnesses.

[0032] Of the two trajectory control mechanisms, one can be defined as the first motion end and the other as the second motion end. As shown in the figure, the first motion end is located at the high point in the Z-axis direction, and the second motion end is located at the low point in the Z-axis direction. The first motion end includes a first motion end slider 1, a first motion end cam plate 2, a first motion end connecting rod 3, and a first motion end fixed cam 11. The second motion end includes a second motion end slider 8, a second motion end cam plate 9, a second motion end connecting rod 10, and a second motion end fixed cam 12. The working principles of the first and second motion ends are completely the same, so only the first motion end will be explained here.

[0033] The first motion end fixing cam 11 and the second motion end fixing cam 12 are fixed to the end face of the first support block. Both the first motion end fixing cam 11 and the second motion end fixing cam 12 can rotate independently around the Z-axis, and the first motion end fixing cam 11 and the second motion end fixing cam 12 have only this degree of freedom. The front end of the first motion end slider 1 has a motion end made of sheet metal for fixing the wire harness. The reverse side of the front end of the first motion end slider 1 has a guide post inserted into the first motion end cam plate 2, which can slide in the cam groove, thereby determining the motion trajectory of the wire harness fixing point at the front end of the first motion end slider 1. The rear end of the first motion end slider 1 is provided with a cam groove, which cooperates with the first motion end fixing cam 11, thereby determining the angle and posture of the front fixing point of the first motion end slider 1.

[0034] The first and second moving ends constitute two sets of motion end trajectory control mechanisms. The two sets of motion end trajectory control mechanisms are simultaneously driven by the following crank-slider mechanism and power source: The crank-slider mechanism includes the first moving end connecting rod 3, the second moving end connecting rod 10 and the motor rocker arm 7. The fixed points on the first moving end connecting rod 3, the second moving end connecting rod 10 and the motor rocker arm 7 are designed to ensure that the two sets of trajectory control mechanisms can operate within the full stroke range during the rocker arm swing.

[0035] The motor 4 is connected to the rocker arm 7 via the crank 5 and the second connecting rod 6, forming a spatial crank-rocker mechanism. This mechanism converts the continuous circular motion of the motor into the reciprocating motion of the rocker arm 7, and finally synchronously drives two sets of trajectory control mechanisms.

[0036] Figure 3-4 The diagram shows a detailed view of the trajectory control mechanism. It should be noted that the three first motion end sliders 1 shown in the diagram represent three different position states of the first motion end slider 1, rather than each trajectory control mechanism having three first motion end sliders. Each trajectory control mechanism has one and only one first motion end slider 1. Sample 15 represents the actual trajectory and attitude of the wire harness motion end under actual working conditions. The first motion end cam plate 2 determines the motion trajectory coordinates of the wire harness fixing point on the first motion end slider 1, and the position of the first motion end fixing cam 11 determines the attitude of the wire harness fixing point on the first motion end slider 1.

[0037] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0038] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A dual-track durability device for wheel wiring harnesses, characterized in that, The trajectory control mechanism comprises a fixed cam plate and a movable slider, the cam plate is provided with a first straight cam groove, one end of the slider is provided with a guide column for cooperating with the first straight cam groove and a wire harness fixing plate for fixing wire harness, the other end of the slider is provided with a second straight cam groove, the second straight cam groove is provided with a fixed cam.

2. The dual track endurance device for a vehicle wheel wiring harness of claim 1, wherein, The first straight cam groove and the second straight cam groove form an acute angle.

3. The dual track endurance device for a vehicle wheel wiring harness of claim 1, wherein, The wire harness fixing plate comprises a vertical plate fixed on the slider, the vertical plate is provided with a slot for inserting wire harness.

4. The dual track endurance device for a vehicle wheel wiring harness of claim 3, wherein, The vertical plate and the slider are provided with a reinforcing rib.

5. The dual track endurance device for a vehicle wheel wiring harness of claim 1, wherein, The rocker (7) is a long strip plate, the middle part of the rocker (7) is rotatably connected with a hinge shaft fixed along the Z direction, the two ends of the rocker (7) are rotatably connected with the first connecting rod, the hinge shaft and at least one first connecting rod are rotatably connected with a second connecting rod (6), the second connecting rod (6) and the crank (5) are rotatably connected with each other.

6. The dual track endurance device for a vehicle wheel wiring harness of claim 5, wherein, The output end of the power source is connected with the crank (5).

7. The dual track endurance device for a vehicle wheel wiring harness of claim 6, wherein, The power source is a motor (4) arranged along the Z direction.

8. The dual track endurance device for a vehicle wheel wiring harness of claim 7, wherein, The two trajectory control mechanisms are located at different heights in the XY plane along the Z direction.

9. The dual track endurance device for a vehicle wheel wiring harness of claim 1, wherein, The bottom plate (14) is provided with a first supporting block for installing the trajectory control mechanism and a second supporting block for installing the power source.

10. The dual track endurance device for a vehicle wheel wiring harness of claim 1, wherein, A wire harness fixing end (13) for fixing all wire harnesses is further provided.

Images