A combined switch durability test device
By designing a multi-axis linkage combination switch durability testing device, which synchronously simulates lever swing, combination switch operation and clock spring rotation, the problem of incomplete testing by traditional equipment is solved, and more accurate durability testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
- Filing Date
- 2026-05-15
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional laboratory durability testing equipment cannot simultaneously simulate lever swing, combination switch operation, and clock spring rotation, resulting in incomplete test results and deviations from actual failure modes.
A durability testing device for a combination switch, comprising a base, an adjustment plate, an adjustment mechanism, a rotating shaft, a driver, and a lever drive mechanism, was designed. The device simulates the actual vehicle mounting angle, lever swing, and clock spring rotation of the combination switch through the adjustment plate and lever drive mechanism, thereby achieving multi-axis linkage automated testing.
It improves the accuracy and precision of testing, reduces the deviation from actual failure modes, makes test results closer to real-world usage scenarios, and avoids incomplete results caused by isolated test items.
Smart Images
Figure CN224399558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive electronic product manufacturing and testing, specifically to a durability testing device for combination switches. Background Technology
[0002] Modern automotive combination switches are becoming increasingly integrated, closely linked to levers and clock springs, and are key components of the vehicle's human-machine interface, making their reliability paramount. Product stability and reliability depend not only on multiple factors affecting its own electrical components, software, and mechanical parts, but also on the combined mechanical stresses caused by lever movement and steering wheel rotation. Therefore, durability testing is crucial during product development to identify and address potential issues early on.
[0003] Traditional laboratory durability testing equipment typically only performs reciprocating tests on the single action of the combination switch body, failing to simulate the angle of the lever mounted on the vehicle and the synchronous rotation of the clock spring during steering wheel rotation. The test conditions differ from those of a real vehicle. These methods isolate the test items such as combination switch operation, lever movement, and clock spring rotation, resulting in incomplete test results and deviations from the actual failure modes. Therefore, there is an urgent need for a multi-axis linkage automated testing device that can simultaneously simulate lever swing, combination switch operation, and clock spring rotation. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a combined switch durability testing device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, an adjustment plate, an adjustment mechanism, a rotating shaft, a driver, and a lever driving mechanism. The adjustment plate is rotatably mounted on the base. The adjustment mechanism is mounted on the base and drives the adjustment plate to rotate. The adjustment plate has a fixing seat for fixing the combination switch. The rotating shaft passes through the combination switch and is linked to the rotor part of the clock spring. The driver is mounted on the adjustment plate and drives the rotating shaft to rotate. The lever driving mechanism is mounted on the adjustment plate and located on both sides of the fixing seat. The lever driving mechanism has an upward-moving state (driving the lever upward) and a downward-moving state (driving the lever downward). The driving motor can be a servo motor.
[0006] By adopting the above technical solution, during use, the adjustment plate is first driven to rotate around the base by the adjustment mechanism on the base, adjusting the adjustment plate to simulate the angle of the actual vehicle installation of the combination switch. Then, the combination switch to be tested is fixed by the fixing seat on the adjustment plate. Subsequently, the driver is activated, driving the rotating shaft passing through the combination switch to rotate. The rotating shaft synchronously drives the rotor part of the clock spring to rotate. At the same time, the lever drive mechanism on both sides of the adjustment plate switches to the up-shifting state or the down-shifting state respectively, realizing the upward or downward swing drive of the combination switch lever. It can synchronously simulate the actual vehicle installation angle of the combination switch, the lever swing, and the clock spring rotation, solving the problems of traditional equipment only performing single-item tests and the large difference between the test conditions and the actual vehicle. This makes the test closer to the real use scenario, avoids incomplete results caused by isolated test items, and reduces the deviation from the actual failure mode.
[0007] The present invention is further configured such that: the lever driving mechanism includes a side motor, an upper support rod, a lower support rod, an upper support seat, and a lower support seat. The upper support rod and the lower support rod are arranged in parallel, and their two ends are respectively connected to the upper support seat and the lower support seat, forming a constant distance between the upper support rod and the lower support rod. The lever is located between the upper support rod and the lower support rod. The side motor is set on the adjustment plate and drives the upper support rod and the lower support rod to drive the lever to rotate.
[0008] By adopting the above technical solution, when the lever drive mechanism is working, the side motor starts and transmits power to the upper and lower support rods. Since the lever is located between the upper and lower support rods, the upper and lower support rods move synchronously under the drive of the side motor, driving the lever to complete the upward or downward swinging action, realizing the switching of the lever drive mechanism between the upward and downward states. By driving the lever with the parallel and constantly spaced upper and lower support rods, deviation or jamming during the lever swinging process is avoided, ensuring the stability of the lever action simulation. The side motor provides automated driving force, replacing the traditional possible manual or unstable driving methods, improving the accuracy and efficiency of the lever swinging test.
[0009] The present invention is further configured such that: the upper support base is connected to the side motor via transmission, and the lower support base is rotatably connected to the adjustment plate.
[0010] By adopting the above technical solution, when the lever drive mechanism is running, the power of the side motor is directly transmitted to the upper support seat connected to it. The upper support seat drives the upper support rod and the lower support rod to move. The two work together to drive the lever in the middle to move up and down stably. The transmission path between the upper support seat and the side motor is clearly defined to ensure that the power transmission is direct and without redundant loss, thereby improving the drive response speed.
[0011] The present invention is further configured to include rollers, which are respectively disposed on the upper support rod and the lower support rod and are opposite to the lever. The rollers may be rubber hoses.
[0012] By adopting the above technical solution, when the upper and lower support rods drive the lever to swing, the rollers set on the upper and lower support rods and opposite to the lever directly contact the lever, assisting the lever to smoothly complete the up and down swinging action; by reducing the friction and wear between the lever and the support rod through the rollers, the lever components of the switch to be tested can be protected, avoiding additional damage during the test, and the service life of the equipment's own support rods can also be extended.
[0013] The present invention is further configured such that: the adjustment mechanism includes a lead screw, a handwheel, a slider, and a connecting rod; the base is provided with a guide rail; the lead screw is rotatably mounted on the base; the handwheel drives the lead screw to move the slider along the guide rail; the two ends of the connecting rod are respectively hinged to the slider and the adjustment plate; the other side of the adjustment plate relative to the connecting rod is hinged to the base; when the handwheel drives the slider to move, the connecting rod drives the adjustment plate to rotate around the hinge point to adjust the angle of the adjustment plate.
[0014] By adopting the above technical solution, when adjusting the angle of the adjustment plate, turning the handwheel drives the lead screw on the base to rotate, and the lead screw drives the slider that slides along the guide rail to move. The slider pulls or pushes the adjustment plate through the connecting rods hinged at both ends, causing the adjustment plate to rotate around the hinge point with the base until the required simulated vehicle angle is reached. Through the transmission structure of the lead screw, slider, and connecting rod, precise fine-tuning of the adjustment plate angle is achieved. Compared with the traditional coarse angle adjustment method, it can more accurately match the installation angle of the combination switch of different vehicle models. The guiding effect of the guide rail on the slider ensures the stability of the angle adjustment process and avoids the adjustment plate offset from affecting the test accuracy.
[0015] The present invention is further configured such that: a limit stop is provided on the base and the limit stop is located at the end of the guide rail and is opposite to the slider.
[0016] By adopting the above technical solution, when the slider is driven to move along the guide rail by rotating the handwheel, if the slider moves to the end of the guide rail due to improper operation, it will be blocked by the limit block set on the base, which will limit the slider to continue moving and thus prevent the adjustment plate from rotating excessively. The limit block can prevent the slider from exceeding the guide rail stroke, which would cause damage to the adjustment mechanism components such as the lead screw and connecting rod, and protect the equipment safety. At the same time, it can also prevent the combination switch from deviating from the reasonable test angle due to excessive rotation of the adjustment plate, and prevent invalid test data or damage to the combination switch due to abnormal angle.
[0017] The present invention is further configured such that: the bottom of the base is provided with a universal wheel and the universal wheel has a braking mechanism. The braking mechanism is a conventional technical configuration of the universal wheel, so it will not be described further.
[0018] By adopting the above technical solution, when the equipment needs to be moved, the brake mechanism of the universal wheels at the bottom of the base can be released, and the base can be pushed to move the equipment flexibly in the laboratory via the universal wheels. After reaching the test position, the brake mechanism is locked to fix the universal wheels and prevent the equipment from shifting during the test. The universal wheel design solves the problem of inconvenient movement of traditional fixed test equipment and improves the versatility of the equipment in different test areas in the laboratory. The brake mechanism ensures that the equipment is stably fixed during the test and avoids misalignment of the rotating shaft, lever drive mechanism and combination switch due to equipment displacement, thus ensuring the normal conduct of the test. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of this utility model without a combination switch;
[0021] Figure 3 This is a schematic diagram of the mechanism of the adjustment plate and related components of this utility model;
[0022] Figure 4 This is a schematic diagram of the lever drive mechanism of this utility model.
[0023] In the diagram: 1. Base; 2. Adjusting plate; 21. Fixed seat; 3. Adjusting mechanism; 31. Lead screw; 32. Handwheel; 33. Slider; 34. Connecting rod; 35. Guide rail; 36. Limit stop; 4. Rotating shaft; 41. Driver; 5. Lever drive mechanism; 51. Side motor; 52. Upper support rod; 53. Lower support rod; 54. Upper support seat; 55. Lower support seat; 56. Roller; 6. Caster wheel. Detailed Implementation
[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] like Figure 1-4 As shown, this utility model discloses a durability testing device for a combination switch, including a base 1, an adjusting plate 2, an adjusting mechanism 3, a rotating shaft 4, a driver 41, and a lever driving mechanism 5. The adjusting plate 2 is rotatably mounted on the base 1, and the adjusting mechanism 3 is mounted on the base 1 and drives the adjusting plate 2 to rotate. The adjusting plate 2 is provided with a fixing seat 21 for fixing the combination switch. The rotating shaft 4 passes through the combination switch and is linked to the rotor part of the clock spring. The driver 41 is mounted on the adjusting plate 2 and drives the rotating shaft 4 to rotate. The lever driving mechanism 5 is mounted on the adjusting plate 2 and located on both sides of the fixing seat 21. The lever driving mechanism 5 has an upward swing state (driving the lever upward) and a downward swing state (driving the lever downward). In use, the adjustment is first driven by the adjusting mechanism 3 on the base 1. The plate 2 rotates around the base 1, adjusting the plate 2 to simulate the angle of the actual vehicle installation of the combination switch. Then, the combination switch to be tested is fixed by the fixing seat 21 on the adjustment plate 2. Subsequently, the driver 41 is activated, driving the rotating shaft 4 passing through the combination switch to rotate. The rotating shaft 4 synchronously drives the rotor part of the clock spring to rotate. At the same time, the lever drive mechanism 5 on both sides of the adjustment plate 2 switches to the up-shifting state or the down-shifting state respectively, realizing the upward or downward swing drive of the combination switch lever. It can synchronously simulate the actual vehicle installation angle of the combination switch, the lever swing and the clock spring rotation, solving the problems of traditional equipment only performing single-item tests and the large difference between the test conditions and the actual vehicle. This makes the test closer to the real use scenario, avoids the incomplete results caused by isolated test items, and reduces the deviation from the actual failure mode.
[0027] The lever drive mechanism 5 includes a side motor 51, an upper support rod 52, a lower support rod 53, an upper support seat 54, and a lower support seat 55. The upper support rod 52 and the lower support rod 53 are arranged in parallel, with their ends connected to the upper support seat 54 and the lower support seat 55 respectively, forming a constant distance between the upper support rod 52 and the lower support rod 53. The lever is located between the upper support rod 52 and the lower support rod 53. The side motor 51 is mounted on the adjustment plate 2 and drives the upper support rod 52 and the lower support rod 53 to rotate the lever. When the lever drive mechanism 5 is working, the side motor 51 starts, and power is transmitted to the upper support rod 52 and the lower support rod 53. Because the lever is located between the upper support rod 52 and the lower support rod 53, the lever rotates between the upper support rod 52 and the lower support rod 53. The upper support rod 52 and the lower support rod 53 move synchronously under the drive of the side motor 51, driving the lever to complete the upward or downward swinging action, realizing the switching of the lever drive mechanism 5 between the upward and downward states; the lever is driven by the parallel and constantly spaced upper and lower support rods 53 (the spacing needs to ensure that the lever can be moved up and down), avoiding deviation or jamming during the lever swinging process, and ensuring the stability of the lever action simulation; the side motor 51 provides automated driving force, replacing the traditional possible manual or unstable driving methods, improving the accuracy and efficiency of the lever swinging test. It should be noted that the upper support rod 52, the lower support rod 53, the upper support base 54, and the lower support base 55 together form a swing frame. The swing frame has a toggle space for accommodating the combination switch lever. The output shaft of the side motor 51 is connected to one end of the upper support base 54 or the lower support base 55 to drive it to swing up and down. The side motor 51 can be a servo motor. The side motor 51 can also be connected to the upper support base 54 or the lower support base 55 through a long swing arm. It can be understood that the long swing arm can be separate or it can be part of the upper support base 54 or the lower support base 55.
[0028] The upper support seat 54 is connected to the side motor 51, and the lower support seat 55 is rotatably connected to the adjustment plate 2. When the lever drive mechanism 5 is running, the power of the side motor 51 is directly transmitted to the upper support seat 54 connected to it. The upper support seat 54 drives the upper support rod 52 and the lower support rod 53 to move. The two work together to drive the lever in the middle to stably complete the up and down movement. The transmission path between the upper support seat 54 and the side motor 51 is clearly defined to ensure that the power transmission is direct and without redundant loss, thereby improving the drive response speed.
[0029] It also includes rollers 56, which are respectively set on the upper support rod 52 and the lower support rod 53 and are opposite to the lever. When the upper support rod 52 and the lower support rod 53 drive the lever to swing, the rollers 56 set on the upper support rod 52 and the lower support rod 53 and opposite to the lever directly contact the lever, assisting the lever to smoothly complete the up and down swinging action. By reducing the friction and wear between the lever and the support rod through rollers 56, it can not only protect the lever component of the combination switch to be tested and avoid additional damage during the test, but also extend the service life of the equipment's own support rod.
[0030] The adjustment mechanism 3 includes a lead screw 31, a handwheel 32, a slider 33, and a connecting rod 34. A guide rail 35 is provided on the base 1. The lead screw 31 is rotatably mounted on the base 1. The handwheel 32 drives the lead screw 31 to move the slider 33 along the guide rail 35. Both ends of the connecting rod 34 are hinged to the slider 33 and the adjustment plate 2, respectively. The other side of the adjustment plate 2 opposite the connecting rod 34 is hinged to the base 1. When the handwheel 32 drives the slider 33 to move, the connecting rod 34 drives the adjustment plate 2 to rotate around the hinge point, thus adjusting the angle of the adjustment plate 2. When adjusting the angle of the adjustment plate 2, the handwheel 32 is rotated, driving the lead screw 31 on the base 1. 1. Rotation causes the lead screw 31 to move the slider 33, which slides along the guide rail 35. The slider 33 pulls or pushes the adjustment plate 2 through the connecting rod 34 hinged at both ends, causing the adjustment plate 2 to rotate around the hinge point with the base 1 until the required simulated vehicle angle is reached. Through the transmission structure of the lead screw 31, slider 33, and connecting rod 34, the angle of the adjustment plate 2 can be precisely fine-tuned. Compared with the traditional coarse angle adjustment method, it can more accurately match the installation angle of the combination switch of different vehicle models. The guide rail 35 guides the slider 33, ensuring the stability of the angle adjustment process and avoiding the adjustment plate 2 from shifting and affecting the test accuracy.
[0031] The base 1 is also provided with a limit stop 36, which is located at the end of the guide rail 35 and opposite to the slider 33. When the handwheel 32 is turned to drive the slider 33 to move along the guide rail 35, if the slider 33 moves to the end of the guide rail 35 due to improper operation, it will be blocked by the limit stop 36 on the base 1, which will limit the slider 33 from continuing to move, thereby preventing the adjustment plate 2 from rotating excessively. The limit stop 36 can prevent the slider 33 from exceeding the travel of the guide rail 35, which would cause damage to the adjustment mechanism 3 components such as the lead screw 31 and connecting rod 34, thus protecting the safety of the equipment. At the same time, it can also prevent the adjustment plate 2 from rotating excessively, causing the combination switch to deviate from the reasonable test angle, thus preventing invalid test data or damage to the combination switch due to abnormal angle.
[0032] The base 1 is equipped with casters 6 at its bottom, and the casters 6 have a braking mechanism. When the equipment needs to be moved, the braking mechanism of the casters 6 at the bottom of the base 1 is released, and the base 1 can be pushed to move the equipment flexibly in the laboratory via the casters 6. After reaching the test position, the braking mechanism is locked to fix the casters 6 and prevent the equipment from shifting during the test. The design of the casters 6 solves the problem of inconvenient movement of traditional fixed test equipment and improves the versatility of the equipment in different test areas in the laboratory. The braking mechanism ensures that the equipment is stably fixed during the test and avoids misalignment of the rotating shaft 4, the lever drive mechanism 5 and the combination switch due to equipment displacement, thus ensuring the normal conduct of the test. The braking mechanism in this embodiment is existing technology.
[0033] Working process: The combination switch to be tested is fixed to the mounting base 21 of the adjustment plate 2 with bolts, so that the switch lever is located between the upper support rod 52 and the lower support rod 53 of the two-sided lever drive mechanism 5. At the same time, the rotating shaft 4 passes through the combination switch and is keyed to the rotor part of the clock spring. Before testing, the operator turns the handwheel 32, which drives the lead screw 31 to rotate. The lead screw 31 drives the slider 33 to slide along the guide rail 35. The slider 33 pulls the adjustment plate 2 around the hinge point with the base 1 through the connecting rod 34 until the angle of the adjustment plate 2 matches the actual vehicle mounting angle of the combination switch to be tested. Then, the operator stops turning the handwheel 32 to complete the test. Angle adjustment; the equipment control system is started, the driver 41 is started, and the rotating shaft 4 is driven to rotate at a set speed. The rotating shaft 4 synchronously drives the rotor part of the clock spring to rotate, simulating the steering wheel rotation process. At the same time, the side motors 51 on both sides are started according to the set program. The side motors 51 drive the upper support rod 52 and the lower support rod 53 to rotate. The rollers 56 on the upper support rod 52 and the lower support rod 53 contact the lever, causing the lever to swing up or down, realizing the switching between the up-shifting state and the down-shifting state of the lever drive mechanism 5. The above clock spring rotation and lever swinging action are carried out synchronously. The test duration is continuously set to complete the durability test of the combination switch.
[0034] It should be noted that the technical solution of the combined switch durability testing equipment described in this utility model is mainly defined by the mechanical structure and drive transmission relationship. During the durability test, the start-stop, rotation, and timing of the driver 41 and the side motor 51 are all achieved using a common industrial control method (using a PLC programmable controller for convenient and precise control of rotation speed, angle, time, and number of cycles), without relying on any specific programming control circuit, embedded software, or computer program. That is, this application does not propose any improvement to the control method or control program itself; the action control of all driving elements falls within the conventional electrical drive category in this field.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.
Claims
1. A combined switch durability test apparatus, characterized by: The device includes a base (1), an adjustment plate (2), an adjustment mechanism (3), a rotating shaft (4), a driver (41), and a lever driving mechanism (5). The adjustment plate (2) is rotatably mounted on the base (1). The adjustment mechanism (3) is mounted on the base (1) and drives the adjustment plate (2) to rotate. The adjustment plate (2) is provided with a fixing seat (21) for fixing the combination switch. The rotating shaft (4) passes through the combination switch and is linked with the rotor part of the clock spring. The driver (41) is mounted on the adjustment plate (2) and drives the rotating shaft (4) to rotate. The lever driving mechanism (5) is mounted on the adjustment plate (2) and located on both sides of the fixing seat (21). The lever driving mechanism (5) has an upward state that drives the lever to swing upward and a downward state that drives the lever to swing downward.
2. The durability testing equipment for a combination switch according to claim 1, characterized in that: The lever drive mechanism (5) includes a side motor (51), an upper support rod (52), a lower support rod (53), an upper support seat (54), and a lower support seat (55). The upper support rod (52) and the lower support rod (53) are arranged in parallel, and their two ends are connected to the upper support seat (54) and the lower support seat (55) respectively, forming a constant distance between the upper support rod (52) and the lower support rod (53). The lever is located between the upper support rod (52) and the lower support rod (53). The side motor (51) is set on the adjustment plate (2) and drives the upper support rod (52) and the lower support rod (53) to rotate the lever.
3. The durability testing equipment for a combined switch according to claim 2, characterized in that: The upper support (54) is connected to the side motor (51) for transmission, and the lower support (55) is rotatably connected to the adjustment plate (2).
4. The durability testing equipment for a combination switch according to claim 2, characterized in that: It also includes rollers (56), which are respectively set on the upper support rod (52) and the lower support rod (53) and are opposite to the lever.
5. The durability testing equipment for a combined switch according to claim 1, characterized in that: The adjustment mechanism (3) includes a lead screw (31), a handwheel (32), a slider (33), and a connecting rod (34). The base (1) is provided with a guide rail (35). The lead screw (31) is rotatably mounted on the base (1). The handwheel (32) drives the lead screw (31) to move the slider (33) along the guide rail (35). The two ends of the connecting rod (34) are respectively hinged to the slider (33) and the adjustment plate (2). The other side of the adjustment plate (2) relative to the connecting rod (34) is hinged to the base (1). When the handwheel (32) drives the slider (33) to move, the connecting rod (34) drives the adjustment plate (2) to rotate around the hinge point to adjust the angle of the adjustment plate (2).
6. The durability testing equipment for a combination switch according to claim 5, characterized in that: The base (1) is also provided with a limit stop (36) and the limit stop (36) is located at the end of the guide rail (35) and opposite to the slider (33).
7. The durability testing equipment for a combination switch according to claim 1, characterized in that: The base (1) is provided with casters (6) at the bottom and the casters (6) have a braking mechanism.