A test apparatus and test method for automotive swing arm assembly

Abstract

This invention provides a testing device and method for an automotive swing arm assembly, comprising: a mounting component, a first drive assembly, a second drive assembly, a third drive assembly, a fixing assembly, a clamping assembly, and an environmental chamber; the mounting component has a mounting surface, the first drive assembly, the second drive assembly, the third drive assembly, and the environmental chamber are all fixed to the mounting surface, and the fixing assembly is fixed in the environmental chamber; the environmental chamber has a first clearance hole, a second clearance hole, and a third clearance hole on its body, the first drive assembly is movably connected to a first connecting rod, the second drive assembly is movably connected to a second connecting rod, and the third drive assembly is movably connected to a third connecting rod, the first connecting rod passes through the first clearance hole and is sealed to the first clearance hole, the second connecting rod passes through the second clearance hole and is sealed to the hole wall of the second clearance hole, and the third connecting rod passes through the third clearance hole and is sealed to the third clearance hole; the clamping assembly is located in the environmental chamber.

Description

Technical Field

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

[0002] With the advancement of technology, automobiles have gradually become a common means of transportation in daily life, making travel more convenient. Typically, automobiles are equipped with a control arm assembly, which includes a control arm, a ball joint assembly, a first elastic sleeve, and a second elastic sleeve, all of which are connected to the control arm. However, during the use of the control arm assembly, it is necessary to test it to ensure that it meets requirements. Related technologies typically use control arm assembly testing equipment for testing, but the accuracy of the test results from these equipment is relatively low. Summary of the Invention

[0003] The purpose of this invention is to provide a testing device and method for automotive control arm assemblies, so as to solve the problem of low accuracy of test results for control arm assemblies in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, embodiments of the present invention provide a test apparatus for an automotive control arm assembly, used to conduct durability tests on an automotive control arm assembly. The automotive control arm assembly includes a ball joint assembly, a control arm, a first elastic sleeve, and a second elastic sleeve. The control arm has a first connecting end, a second connecting end, and a third connecting end. The ball joint assembly is connected to the first connecting end, the first elastic sleeve is connected to the second connecting end, and the second elastic sleeve is connected to the third connecting end. The test apparatus includes: a mounting component, a first driving component, a second driving component, a third driving component, a fixing component, a clamping component, and an environmental chamber. The mounting component has a mounting surface, and the first drive component, the second drive component, the third drive component, and the environmental box are all fixed on the mounting surface. The fixing component is fixed in the environmental box. The environmental chamber has a first clearance hole, a second clearance hole, and a third clearance hole. The first drive assembly is movably connected to a first connecting rod, the second drive assembly is movably connected to a second connecting rod, and the third drive assembly is movably connected to a third connecting rod. The first connecting rod passes through the first clearance hole and is sealed to the first clearance hole. The second connecting rod passes through the second clearance hole and is sealed to the hole wall of the second clearance hole. The third connecting rod passes through the third clearance hole and is sealed to the third clearance hole. The clamping assembly is located in the environmental chamber, and the first link, the second link, and the third link are all connected to the clamping assembly. The clamping assembly is used to connect the ball joint assembly. The fixing assembly is used to fix the first elastic sleeve and the second elastic sleeve. The first driving assembly is used to drive the first link to move along a first direction. The second driving assembly is used to drive the second link to move along a second direction. The third driving assembly is used to drive the third link to move along a third direction. The environmental chamber is used to simulate the actual environment, and the first direction, the second direction, and the third direction are different from each other.

[0005] Optionally, the first end of the first link is movably connected to the first drive assembly, the second end of the first link is movably connected to the clamping assembly, the first end of the second link is movably connected to the second drive assembly, the second end of the second link is movably connected to the clamping assembly, the first end of the third link is movably connected to the third drive assembly, and the second end of the third link is fixedly connected to the clamping assembly.

[0006] Optionally, a first end of the first link is connected to a first movable component, a second end of the first link is connected to a second movable component, the first end of the first link is movably connected to the first drive component through the first movable component, and the second end of the first link is movably connected to the clamping component through the second movable component. The first end of the second link is connected to a third movable component, the second end of the second link is connected to a fourth movable component, the first end of the second link is movably connected to the second drive component through the third movable component, and the second end of the second link is movably connected to the clamping component through the fourth movable component; The first end of the third link is connected to the fifth movable component, and the first end of the third link is movably connected to the third drive component through the fifth movable component.

[0007] Optionally, the first movable component includes a first mounting base, a first movable bearing, a first movable pin, and a first adjusting screw. The first mounting base is connected to the first end of the first connecting rod. The first movable component also includes first mounting plates positioned opposite each other. The first mounting base also has a first clamping portion located between the first mounting plates positioned opposite each other. The first clamping portion clamps the first movable bearing. The first movable pin passes through the first movable bearing and is movably connected to the first mounting plate. The first adjusting screw is mounted on the first clamping portion and is used to adjust the clamping force of the first clamping portion on the first movable bearing. The first mounting plate is connected to the first drive component.

[0008] Optionally, the first clamping part is provided with first slots that are positioned opposite each other, and the first movable bearing is located between the first slots. A first blocking member is provided in the first slot, and the first blocking member is used to prevent the first movable bearing from disengaging from the first clamping part.

[0009] Optionally, the first drive assembly includes a first fixed base, a first drive member, and a first connecting plate; The first fixed base is fixed on the mounting surface, the first driving member is mounted on the first fixed base, the first connecting plate is connected to the output end of the first driving member, and the first connecting plate is connected to the first connecting rod. The first driving member is used to drive the first connecting rod to move along the first direction through the first connecting plate. The second drive assembly includes a second fixed base, a second drive component, and a second connecting plate; The second fixed base is fixed on the mounting surface, the second driving member is mounted on the second fixed base, the second connecting plate is connected to the output end of the second driving member, and the second connecting plate is connected to the second connecting rod. The second driving member is used to drive the second connecting rod to move along the second direction through the second connecting plate. The third drive assembly includes a third drive member and a third connecting plate. A column is fixed on the mounting surface. A cantilever member is connected to one end of the column away from the mounting surface. The third drive member is mounted on the cantilever member. The third connecting plate is connected to the output end of the third drive member. The third connecting plate is connected to the third connecting rod. The third drive member is used to drive the third connecting rod to move along the third direction through the third connecting plate.

[0010] Optionally, a first force sensor is provided between the first driving member and the first connecting plate. The first force sensor is used to detect the magnitude of the driving force of the first driving member driving the first connecting rod. A second force sensor is provided between the second driving member and the second connecting plate. The second force sensor is used to detect the magnitude of the driving force that drives the second connecting rod by the second driving member. A third force sensor is provided between the third driving component and the third connecting plate. The third force sensor is used to detect the magnitude of the driving force by which the third driving component drives the third connecting rod.

[0011] Optionally, the clamping assembly includes a first clamping plate, a second clamping plate, a third clamping plate, a connecting block, and a connector; The first clamping plate is connected to the second clamping plate, and there is a first included angle between the first clamping plate and the second clamping plate. The third clamping plate is connected to both the first clamping plate and the second clamping plate. The connecting block is connected to either the first clamping plate or the second clamping plate. The connecting member is connected to the connecting block and is used to connect the ball head assembly. The first clamping plate is connected to the first connecting rod. The second clamping plate is connected to the second connecting rod. The second connecting plate is connected to the third connecting rod.

[0012] Optionally, the fixing component includes a mounting base, a movable base, a first clamping member, and a second clamping member; The mounting base has a first connecting surface, on which a first groove is provided along a first extending direction. The movable seat is partially embedded in the groove and is detachably connected to the first connecting surface. The movable seat has a second connecting surface, on which a second groove is provided along the first extending direction and a third groove is provided along the second extending direction. The second groove and the third groove intersect. The first clamping member is embedded in the second groove or the third groove, and the second clamping member is embedded in the second groove or the third groove. Both the first clamping member and the second clamping member are detachably connected to the second connecting surface. The first clamping member is used to clamp the first elastic sleeve, and the second clamping member is used to clamp the second elastic sleeve.

[0013] Optionally, the automotive swing arm assembly test device also includes a mud and water spraying assembly, which is connected to a spraying pipe. The environmental chamber has a spraying through hole, and the spraying pipe passes through the spraying through hole and is sealed to the spraying through hole. The environmental chamber is provided with at least three flow pipes. The first end of each of the at least three flow pipes is connected to the spray pipe. The second end of each of the at least three flow pipes is respectively directed toward the position where the clamping assembly clamps the ball head assembly, the position where the fixing assembly fixes the first elastic sleeve, and the position where the fixing assembly fixes the second elastic sleeve. The mud and water spraying assembly is used to spray mud and water onto the ball head assembly, the first elastic sleeve, and the elastic sleeve through the spray pipe and the at least three flow pipes.

[0014] Optionally, the automotive swing arm assembly testing device further includes a compressor connected to a first pipe and a second pipe. The environmental chamber has a first opening and a second opening. One end of the first pipe is sealed to the first opening, and one end of the second pipe is sealed to the second opening. The compressor is used to input gases of different temperatures into the environmental chamber through the first pipe to change the temperature in the environmental chamber. The second pipe is used to discharge the gases from the environmental chamber.

[0015] Optionally, a first sealing element is connected to the edge or wall of the first clearance hole, and the first connecting rod and the first clearance hole are sealed together by the first sealing element; A second seal is connected to the edge or wall of the second clearance hole, and the second connecting rod is sealed to the second clearance hole through the second seal. A third sealing element is connected to the edge or wall of the third clearance hole, and the third connecting rod and the third clearance hole are sealed together by the third sealing element.

[0016] In a second aspect, embodiments of the present invention provide a test method applied in the automotive swing arm assembly test apparatus described in any one of the first aspects above, the test method comprising: When the temperature in the environmental chamber is at a preset temperature, at least one of the first drive assembly, the second drive assembly, and the third drive assembly is controlled to move, so that the vehicle swing arm assembly moves in the environmental chamber; The test checks whether the car's control arm assembly meets the requirements after movement.

[0017] Optionally, the vehicle swing arm assembly testing device also includes a mud and water spraying assembly; When the temperature in the environmental chamber is at a preset temperature, controlling at least one of the first drive assembly, the second drive assembly, and the third drive assembly to move, so that the vehicle swing arm assembly moves in the environmental chamber, includes: When the temperature in the environmental chamber is at a preset temperature, the spraying assembly is controlled to spray mud and water into the environmental chamber, and at least one of the first drive assembly, the second drive assembly, and the third drive assembly is controlled to move, so that the vehicle swing arm assembly moves in the environmental chamber.

[0018] The beneficial effects of this invention are: In this embodiment of the invention, since the mounting component has a mounting surface, and the first driving component, second driving component, third driving component, and environmental box are all fixed on the mounting surface, the first driving component, second driving component, third driving component, and environmental box are all immovable relative to the mounting surface. Since the fixing component is fixed in the environmental box, the environmental box body is provided with a first clearance hole, a second clearance hole, and a third clearance hole. The first driving component is movably connected to a first connecting rod, the second driving component is movably connected to a second connecting rod, and the third driving component is movably connected to a third connecting rod. The first connecting rod passes through the first clearance hole and is sealed to it; the second connecting rod passes through the second clearance hole and is sealed to the hole wall of the second clearance hole; the third connecting rod passes through the third clearance hole and is sealed to it. The clamping component is located in the environmental box, and the first, second, and third connecting rods are all connected to the clamping component. Therefore, after adjusting the temperature inside the environmental chamber, the first drive component can drive the first link to move, the second drive component can drive the second link to move, and the third drive component can drive the third link to move. This allows the clamping component to move in three directions. After the clamping component clamps the ball head and the fixing component clamps the first and second elastic sleeves, the ball head assembly of the automotive swing arm assembly can have multiple directions of movement through the first, second, and third drive components, making the movement of the ball head assembly closer to the movement in actual application. That is, in this embodiment of the invention, by setting a first drive component, a second drive component, a third drive component, and an environmental chamber, the temperature in the environmental chamber can be adjusted. Thus, after the car swing arm assembly is placed in the environmental chamber, the temperature in the environmental chamber can be simulated by the environmental chamber. Moreover, at least one of the first drive component, the second drive component, and the third drive component can move to drive the clamping component to move, thereby causing the ball joint assembly of the car swing arm to move. This allows the ball joint assembly of the car swing arm to move in an environment close to the actual environment, thereby enabling better detection of the actual durability performance of the ball joint assembly, the first elastic sleeve, and the second elastic sleeve on the car swing arm assembly, and improving the accuracy of the detection of the car swing arm assembly. Attached Figure Description

[0019] Figure 1 This is one of the schematic diagrams of a test device for an automotive swing arm assembly provided in an embodiment of the present invention; Figure 2 This is a second schematic diagram of a test device for an automotive swing arm assembly provided in an embodiment of the present invention; Figure 3 A schematic diagram of an environmental chamber provided in an embodiment of the present invention; Figure 4 A schematic diagram illustrating a first link connecting a first movable component and a second movable component, provided for an embodiment of the present invention; Figure 5 A schematic diagram of a clamping assembly and a fixing assembly for fixing an automotive swing arm assembly provided in an embodiment of the present invention; Figure 6 A schematic diagram of a column with a cantilever component and a third drive component mounted on the cantilever component, provided in an embodiment of the present invention; Figure 7 One of the schematic diagrams illustrating the equivalent principle of an automotive swing arm assembly testing device provided in an embodiment of the present invention; Figure 8 A second schematic diagram illustrating the equivalent principle of an automotive swing arm assembly testing device provided in an embodiment of the present invention; Figure 9 A flowchart of an experimental method provided in an embodiment of the present invention. Attached image description: 100: Ball joint assembly; 200: Swing arm; 300: First elastic sleeve; 400: Second elastic sleeve; 10: Mounting component; 20: First drive assembly; 30: Second drive assembly; 40: Third drive assembly; 50: Fixing assembly; 60: Clamping assembly; 70: Environmental chamber; 21: First connecting rod; 31: Second connecting rod; 41: Third connecting rod; 22: First movable assembly; 23: Second movable assembly; 32: Third movable assembly; 42: Fifth movable assembly; 221: First mounting base; 222: First movable bearing; 223: First movable pin; 224: First adjusting screw; 225: First mounting plate; 2211: First clamping part; 201: First fixing base; 202: First drive... Components; 203: First connecting plate; 301: Second fixed seat; 302: Second driving component; 303: Second connecting plate; 401: Third driving component; 402: Third connecting plate; 001: Column; 002: Cantilever component; 003: First force sensor; 004: Second force sensor; 005: Third force sensor; 61: First clamping plate; 62: Second clamping plate; 63: Third clamping plate; 64: Connecting block; 65: Connecting component; 51: Mounting seat; 52: Movable seat; 53: First clamping component; 54: Second clamping component; 81: Flow pipe; 90: Compressor; 91: First pipe; 92: Second pipe; 701: First sealing component; 702: Second sealing component; 703: Third sealing component. Detailed Implementation

[0021] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] like Figures 1 to 8 As shown, this embodiment of the invention provides a test device for automotive swing arm assemblies, used for durability testing of automotive swing arm assemblies. The automotive swing arm 200 assembly includes a ball joint assembly 100, a swing arm 200, a first elastic sleeve 300, and a second elastic sleeve 400. The swing arm 200 has a first connecting end, a second connecting end, and a third connecting end. The ball joint assembly 100 is connected to the first connecting end, the first elastic sleeve 300 is connected to the second connecting end, and the second elastic sleeve 400 is connected to the third connecting end. The test device includes: a mounting component 10, a first drive assembly 20, a second drive assembly 30, a third drive assembly 40, a fixing component 50, a clamping component 60, and an environmental chamber 70.

[0024] Mounting component 10 has a mounting surface, and a first drive assembly 20, a second drive assembly 30, a third drive assembly 40, and an environment chamber 70 are all fixed on the mounting surface. A fixing component 50 is fixed in the environment chamber 70. The environment chamber 70 has a first clearance hole, a second clearance hole, and a third clearance hole. The first drive assembly 20 is movably connected to a first connecting rod 21, the second drive assembly 30 is movably connected to a second connecting rod 31, and the third drive assembly 40 is movably connected to a third connecting rod 41. The first connecting rod 21 passes through the first clearance hole and is sealed to the first clearance hole. The second connecting rod 31 passes through the second clearance hole and is sealed to the hole wall of the second clearance hole. The third connecting rod 41 passes through the third clearance hole and is sealed to the third clearance hole. The clamping assembly 60 is located in the environmental chamber 70, and the first link 21, the second link 31, and the third link 41 are all connected to the clamping assembly 60. The clamping assembly 60 is used to connect the ball head assembly 100. The fixing assembly 50 is used to fix the first elastic sleeve 300 and the second elastic sleeve 400. The first driving assembly 20 is used to drive the first link 21 to move in a first direction. The second driving assembly 30 is used to drive the second link 31 to move in a second direction. The third driving assembly 40 is used to drive the third link 41 to move in a third direction. The environmental chamber 70 is used to simulate the actual environment, and the first direction, the second direction, and the third direction are different from each other.

[0025] In this embodiment of the invention, since the mounting component 10 has a mounting surface, and the first driving component 20, the second driving component 30, the third driving component 40, and the environmental box 70 are all fixed on the mounting surface, the first driving component 20, the second driving component 30, the third driving component 40, and the environmental box 70 are all immovable relative to the mounting surface. Since the fixing component 50 is fixed in the environmental chamber 70, and the environmental chamber 70 has a first clearance hole, a second clearance hole, and a third clearance hole, the first drive component 20 is movably connected to the first connecting rod 21, the second drive component 30 is movably connected to the second connecting rod 31, and the third drive component 40 is movably connected to the third connecting rod 41. The first connecting rod 21 passes through the first clearance hole and is sealed to it; the second connecting rod 31 passes through the second clearance hole and is sealed to the hole wall; and the third connecting rod 41 passes through the third clearance hole and is sealed to it. The clamping component 60 is located in the environmental chamber 70, and the first connecting rod 21, the second connecting rod 31, and the third connecting rod 41 are all connected to the clamping component 60. Therefore, it is possible to... After adjusting the temperature inside the ambient chamber 70, the first drive assembly 20 can drive the first link 21 to move, the second drive assembly 30 can drive the second link 31 to move, and the third drive assembly 40 can drive the third link 41 to move. This allows the clamping assembly 60 to move in three directions. After the clamping assembly 60 clamps the ball head, and the fixing assembly 50 clamps the first elastic sleeve 300 and the second elastic sleeve 400, the ball head assembly 100 of the automotive swing arm 200 assembly can have multiple directions of movement through the first drive assembly 20, the second drive assembly 30, and the third drive assembly 40, making the movement of the ball head assembly 100 closer to the movement in actual application. That is, in this embodiment of the invention, by setting a first drive component 20, a second drive component 30, a third drive component 40, and an environmental chamber 70, the temperature in the environmental chamber 70 can be adjusted. Thus, after the automotive swing arm 200 assembly is placed in the environmental chamber 70, the temperature in the actual environment can be simulated by the environmental chamber 70. At least one of the first drive component 20, the second drive component 30, and the third drive component 40 can move to drive the clamping component 60 to move, thereby causing the ball joint component 100 of the automotive swing arm 200 to move. This allows the ball joint component 100 of the automotive swing arm 200 to move in an environment close to the actual environment, thereby enabling better detection of the actual durability performance of the ball joint component 100, the first elastic sleeve 300, and the second elastic sleeve 400 on the automotive swing arm 200 assembly, and improving the accuracy of the detection of the automotive swing arm assembly.

[0026] It should be noted that, in the embodiments of the present invention, when at least one of the first driving component 20, the second driving component 30, and the third driving component 40 is moved, only the second driving component 30 may move while the first driving component 20 and the third driving component 40 remain stationary; only the third driving component 40 may move while the first driving component 20 and the third driving component 40 remain stationary; only the first driving component 20 may move while the second driving component 30 and the third driving component 40 remain stationary; of course, the first driving component 20 and the second driving component 30 may move simultaneously while the third driving component 40 remains stationary; the first driving component 20 and the third driving component 40 may move simultaneously while the second driving component 30 remains stationary; the second driving component 30 and the third driving component 40 may move simultaneously while the first driving component 20 remains stationary; and of course, the first driving component 20, the second driving component 30, and the third driving component 40 may move simultaneously. The embodiments of the present invention do not limit this to any particular method. In particular, by driving the component to move, the movement of the ball joint assembly 100 can be made closer to the actual movement state, making the detection of the automotive swing arm 200 assembly more accurate.

[0027] It should also be noted that, in this embodiment of the invention, the temperature within the environmental chamber 70 can be adjusted by injecting high-temperature gas, thus simulating a real high-temperature environment. Alternatively, acidic gas can be injected into the environmental chamber 70 to create an acidic environment within its cavity, simulating an acidic environment. Furthermore, mud and water can be injected into the environmental chamber 70 to simulate a muddy environment. Of course, other materials can also be injected into the environmental chamber 70 to simulate different real-world environments. For example, injecting water vapor into the environmental chamber 70 can simulate a high-temperature and high-humidity environment. This embodiment of the invention does not limit the scope of these methods.

[0028] Furthermore, in this embodiment of the invention, the first connecting rod 21 is movably connected to the first driving component 20. This allows the first connecting rod 21 to have a certain amount of movement relative to the first driving component 20 when the second driving component 30 and / or the third driving component 40 drives the clamping component 60 to move. This prevents the clamping component 60 from moving and causing damage to the connection between the first connecting rod 21 and the first driving component 20. Similarly, the second connecting rod 31 is movably connected to the second driving component 30. This allows the second connecting rod 31 to have a certain amount of movement relative to the second driving component 30 when the second driving component 30 and / or the third driving component 40 drives the clamping component 60 to move. This prevents the clamping component 60 from moving and causing damage to the connection between the second connecting rod 31 and the second driving component 30. The third link 41 is movably connected to the third drive assembly 40, so that when the second drive assembly 30 and / or the third drive assembly 40 drive the clamping assembly 60 to move, the third link 41 can have a certain amount of movement relative to the third drive assembly 40, thus avoiding the clamping assembly 60 from driving the third link 41 to move when it moves, which would cause damage to the connection between the third link 41 and the third drive assembly 40.

[0029] In some embodiments, the first end of the first link 21 is movably connected to the first drive assembly 20, the second end of the first link 31 is movably connected to the clamping assembly 60, the first end of the second link 31 is movably connected to the second drive assembly 30, the second end of the second link 31 is movably connected to the clamping assembly 60, the first end of the third link 41 is movably connected to the third drive assembly 40, and the second end of the third link 41 is fixedly connected to the clamping assembly 60. This arrangement ensures that the degree of freedom of the entire testing device meets the requirements, and that the clamping assembly 60 has a certain degree of freedom when at least one of the first drive assembly 20, the second drive assembly 30, and the third drive assembly 40 is in motion, thus enabling the clamping assembly 60 to perform compound movements.

[0030] In some embodiments, the first end of the first link 21 is connected to a first movable component 22, and the second end of the first link 21 is connected to a second movable component 23. The first end of the first link 21 is movably connected to the first drive component 20 via the first movable component 22, and the second end of the first link 21 is movably connected to the clamping component 60 via the second movable component 23. The first end of the second link 31 is connected to a third movable component 32, and the second end of the second link 31 is connected to a fourth movable component. The first end of the second link 31 is movably connected to the second drive component 30 via the third movable component 32, and the second end of the second link 31 is movably connected to the clamping component 60 via the fourth movable component. The first end of the third link 41 is connected to a fifth movable component 42, and the first end of the third link 41 is movably connected to the third drive component 40 via the fifth movable component 42. Specifically, by setting the first movable component 22 and the second movable component 23, the two opposite ends of the first connecting rod 21 can be movably connected to the first driving component 20 and the clamping component 60, respectively. By setting the third movable component 32 and the fourth movable component, the two opposite ends of the second connecting rod 31 can be movably connected to the second driving component 30 and the clamping component 60, respectively. By setting the fifth movable component 42, the third connecting rod 41 can be movably connected to the third driving component 40.

[0031] In some embodiments, the first movable component 22 includes a first mounting base 51221, a first movable bearing 222, a first movable pin 223, and a first adjusting screw 224. The first mounting base 51221 is connected to the first end of the first connecting rod 21. The first movable component 22 also includes a first mounting plate 225 positioned opposite each other. The first mounting base 51221 also has a first clamping part 2211, which is located between the first mounting plates 225 positioned opposite each other. The first clamping part 2211 clamps the first movable bearing 222. The first movable pin 223 passes through the first movable bearing 222 and is movably connected to the first mounting plate 225. The first adjusting screw 224 is mounted on the first clamping part 2211 and is used to adjust the clamping force of the first clamping part 2211 clamping the first movable bearing 222. The first mounting plate 225 is connected to the first drive component 20.

[0032] Since the first mounting plate 225 is connected to the first drive assembly 20, and the first mounting plate 225 is connected to the first movable bearing 222 via the first movable pin 223, the first mounting plate 225 can move relative to the first movable bearing 222. The first movable bearing 222 is clamped by the first clamping part 2211, which is connected to the first connecting rod 21. Therefore, when the first connecting rod 21 is driven to move by the clamping assembly 60, the first connecting rod 21 will drive the first clamping part 2211 to move. The first clamping part 2211 can move relative to the first mounting plate 225 via the first movable bearing 222, thereby allowing the first connecting rod 21 to move relative to the first drive member 202.

[0033] It should be noted that, in this embodiment of the invention, the structures of the second movable component 23, the third movable component 32, the fourth movable component, and the fifth movable component 42 are all the same as the structure of the first movable component 22. Specifically, the second movable component 23 includes a second mounting base 51, a second movable bearing, a second movable pin, and a second adjusting screw. The second mounting base 51 is connected to the second end of the second connecting rod 31. The second movable component 23 also includes a second mounting plate positioned opposite each other. The second mounting base 51 also has a second clamping portion located between the second mounting plates positioned opposite each other. The second clamping portion clamps the second movable bearing. The second movable pin passes through the second movable bearing and is movably connected to the second mounting plate. The second adjusting screw is mounted on the second clamping portion and is used to adjust the clamping force of the second clamping portion on the second movable bearing. The second mounting plate is connected to the clamping assembly 60. The third movable component 32 includes a third mounting base 51, a third movable bearing, a third movable pin, and a third adjusting screw. The third mounting base 51 is connected to the third end of the third connecting rod 41. The third movable component 32 also includes a third mounting plate with opposite positions. The third mounting base 51 also has a third clamping part, which is located between the opposite third mounting plates. The third clamping part clamps the third movable bearing. The third movable pin passes through the third movable bearing and is movably connected to the third mounting plate. The third adjusting screw is installed on the third clamping part and is used to adjust the clamping force of the third clamping part on the third movable bearing. The third mounting plate is connected to the second drive component 30. The fourth movable assembly includes a fourth mounting base 51, a fourth movable bearing, a fourth movable pin, and a fourth adjusting screw. The fourth mounting base 51 is connected to the fourth end of the fourth connecting rod. The fourth movable assembly also includes a fourth mounting plate with opposite positions. The fourth mounting base 51 also has a fourth clamping part, which is located between the fourth mounting plates with opposite positions. The fourth clamping part clamps the fourth movable bearing. The fourth movable pin passes through the fourth movable bearing and is movably connected to the fourth mounting plate. The fourth adjusting screw is installed on the fourth clamping part and is used to adjust the clamping force of the fourth clamping part on the fourth movable bearing. The fourth mounting plate is connected to the clamping assembly 60. The fifth movable component 42 includes a fifth mounting base 51, a fifth movable bearing, a fifth movable pin, and a fifth adjusting screw. The fifth mounting base 51 is connected to the fifth end of the fifth connecting rod. The fifth movable component 42 also includes a fifth mounting plate with opposite positions. The fifth mounting base 51 also has a fifth clamping part, which is located between the fifth mounting plates with opposite positions. The fifth clamping part clamps the fifth movable bearing. The fifth movable pin passes through the fifth movable bearing and is movably connected to the fifth mounting plate. The fifth adjusting screw is installed on the fifth clamping part and is used to adjust the clamping force of the fifth clamping part on the fifth movable bearing. The fifth mounting plate is connected to the third drive component 40.

[0034] In some embodiments, the first clamping part 2211 is provided with first slots positioned opposite each other, and the first movable bearing 222 is located between the first slots. A first blocking member is provided in the first slot to prevent the first movable bearing 222 from disengaging from the first clamping part 2211. This arrangement prevents the first movable bearing 222 from disengaging from the first clamping part 2211, which helps to improve the stability of the movable connection between the first connecting rod 21 and the first drive assembly 20. The first blocking member can be a snap ring, but it can also be other devices, such as a buckle. The specific type of the first blocking member is not limited in this embodiment.

[0035] It should be noted that a second blocking component can also be set in the second active component 23. For details, please refer to the setting method of the first blocking component, which will not be repeated here. Similarly, a third blocking component can be set in the third active component 32, a fourth blocking component can be set in the fourth active component, and a fifth blocking component can be set in the fifth active component 42.

[0036] In some embodiments, the first drive assembly 20 may include a first fixed base 201, a first drive member 202, and a first connecting plate 203. The first fixed base 201 is fixed to the mounting surface, the first drive member 202 is mounted on the first fixed base 201, the first connecting plate 203 is connected to the output end of the first drive member 202, and the first connecting plate 203 is connected to the first connecting rod 21. The first drive member 202 is used to drive the first connecting rod 21 to move in a first direction through the first connecting plate 203. The second drive assembly 30 may include a second fixed base 301, a second drive member 302, and a second connecting plate 303. The second fixed base 301 is fixed to the mounting surface, the second drive member 302 is mounted on the second fixed base 301, the second connecting plate 303 is connected to the output end of the second drive member 302, and the second connecting plate 303 is connected to the second connecting rod 31. The second drive member 302 is used to drive the second connecting rod 31 to move in a second direction through the second connecting plate 303. The third drive assembly 40 includes a third drive member 401 and a third connecting plate 402. A column 001 is fixed on the mounting surface. A cantilever member 002 is connected to one end of the column 001 away from the mounting surface. The third drive member 401 is mounted on the cantilever member 002, and the third connecting plate 402 is connected to the output end of the third drive member 401. The third connecting plate 402 is connected to the third link 41. The third drive member 401 is used to drive the third link 41 to move in a third direction through the third connecting plate 402.

[0037] With this configuration, the first driving component 202 can drive the first connecting plate 203 to move, and the first connecting plate 203 can drive the first connecting rod 21 to move, causing the first connecting rod 21 to move in a first direction. Alternatively, the second driving component 302 can drive the second connecting plate 303 to move, and the second connecting plate 303 can drive the second connecting rod 31 to move, causing the second connecting rod 31 to move in a second direction. Furthermore, the third driving component 401 can drive the third connecting plate 402 to move, and the third connecting plate 402 can drive the third connecting rod 41 to move in a third direction.

[0038] It should be noted that the first driving component 202 can be a servo linear cylinder. Of course, the first driving component 202 can also be of other types, such as a servo linear pneumatic cylinder or a linear motor. The specific type of the first driving component 202 is not limited in this embodiment of the invention. Similarly, the second driving component 302 can be a servo linear cylinder. Of course, the second driving component 302 can also be of other types, such as a servo linear pneumatic cylinder or a linear motor. The specific type of the second driving component 302 is not limited in this embodiment of the invention. The third driving component 401 can be a servo linear cylinder. Of course, the third driving component 401 can also be of other types, such as a servo linear pneumatic cylinder or a linear motor. The specific type of the third driving component 401 is not limited in this embodiment of the invention.

[0039] It should also be noted that when the first connecting rod 21 is connected to the first movable component 22, the first movable component 22 is connected to the first connecting plate 203, that is, the first mounting plate 225 of the first movable component 22 is connected to the first connecting plate 203. The first mounting plate 225 can be connected to the first connecting plate 203 by bolts, welding, or pins; however, this embodiment of the invention does not limit the specific connection methods used.

[0040] In some embodiments, a first force sensor 003 is provided between the first driving member 202 and the first connecting plate 203. The first force sensor 003 is used to detect the magnitude of the driving force of the first driving member 202 driving the first connecting rod 21. A second force sensor 004 is provided between the second driving member 302 and the second connecting plate 303. The second force sensor 004 is used to detect the magnitude of the driving force of the second driving member 302 driving the second connecting rod 31. A third force sensor 005 is provided between the third driving member 401 and the third connecting plate 402. The third force sensor 005 is used to detect the magnitude of the driving force of the third driving member 401 driving the third connecting rod 41.

[0041] By setting the first force sensor 003, the magnitude of the driving force of the first drive member 202 driving the first link 21 can be easily determined, thereby facilitating precise control of the first drive member 202. Similarly, by setting the second force sensor 004, the magnitude of the driving force of the second drive member 302 driving the second link 31 can be easily determined, thereby facilitating precise control of the second drive member 302. By setting the third force sensor 005, the magnitude of the driving force of the third drive member 401 driving the third link 41 can be easily determined, thereby facilitating precise control of the third drive member 401.

[0042] It should be noted that a first force sensor plate may be provided between the first driving component 202 and the first connecting plate 203, and the first force sensor 003 is mounted on the first force sensor plate. A second force sensor plate may be provided between the second driving component 302 and the second connecting plate 303, and the second force sensor 004 is mounted on the second force sensor plate. A third force sensor plate may be provided between the third driving component 401 and the third connecting plate 402, and the third force sensor 005 is mounted on the third force sensor plate.

[0043] In some embodiments, the clamping assembly 60 may include a first clamping plate 61, a second clamping plate 62, a third clamping plate 63, a connecting block 64, and a connector 65. The first clamping plate 61 is connected to the second clamping plate 62, and there is a first included angle between the first clamping plate 61 and the second clamping plate 62. The third clamping plate 63 is connected to both the first clamping plate 61 and the second clamping plate 62. The connecting block 64 is connected to either the first clamping plate 61 or the second clamping plate 62. The connector 65 is connected to the connecting block 64 and is used to connect the ball head assembly 100. The first clamping plate 61 is connected to the first connecting rod 21, the second clamping plate 62 is connected to the second connecting rod 31, and the second connecting plate 303 is connected to the third connecting rod 41.

[0044] Since the first clamping plate 61 is connected to the second clamping plate 62, and the third clamping plate 63 is connected to both the first clamping plate 61 and the second clamping plate 62, and the connecting block 64 is connected to either the first clamping plate 61 or the second clamping plate 62, when at least one of the first clamping plate 61, the second clamping plate 62, and the third clamping plate 63 moves, it will drive the other clamping plates to move. Since the connecting block 64 is connected to the first clamping plate 61 or the second clamping plate 62, and the connecting piece 65 is connected to the connecting block 64, the ball head assembly 100 can be connected to the connecting piece 65. Thus, when the first link 21 moves under the drive of the first drive assembly 20, the first link 21 drives the first clamping plate 61 to move, thereby causing the second clamping plate 62, the third clamping plate 63, the connecting block 64, and the ball head assembly 100 to all move. When the second link 31 moves under the drive of the second drive assembly 30, the second link 31 drives the second clamping plate 62 to move, thereby causing the first clamping plate 61, the third clamping plate 63, the connecting block 64, and the ball head assembly 100 to all move. When the third link 41 moves under the drive of the third drive assembly 40, the third link 41 drives the third clamping plate 63 to move, thereby causing the first clamping plate 61, the second clamping plate 62, the connecting block 64, and the ball head assembly 100 to all move.

[0045] It should be noted that, in this embodiment of the invention, the connector 65 can be a connecting bolt, and the model of the connecting bolt can change with the model of the ball head assembly 100. That is, when the models of the ball head assembly 100 are different, a connecting bolt corresponding to the model of the ball head assembly 100 is selected to connect the ball head assembly 100 to the connecting block 64, so that the testing device can test ball head assemblies 100 of different models.

[0046] In some embodiments, the fixing component 50 may include a mounting base 51, a movable base 52, a first clamping member 53, and a second clamping member 54. The mounting base 51 has a first connecting surface, on which a first groove is provided along a first extending direction. The movable base 52 is partially embedded in the groove and is detachably connected to the first connecting surface. The movable base 52 has a second connecting surface, on which a second groove is provided along the first extending direction, and a third groove is provided along the second extending direction. The second groove and the third groove intersect. The first clamping member 53 is embedded in the second groove or the third groove, and the second clamping member 54 is embedded in the second groove or the third groove. Both the first clamping member 53 and the second clamping member 54 are detachably connected to the second connecting surface. The first clamping member 53 is used to clamp the first elastic sleeve 300, and the second clamping member 54 is used to clamp the second elastic sleeve 400.

[0047] With this configuration, when the first clamping member 53 needs to be moved to a desired position, it can be disconnected from the movable seat 52. Then, the first clamping member 53 can slide along the second or third slide groove until it reaches the appropriate position, at which point it can be reconnected to the movable seat 52. Similarly, when the second clamping member 54 needs to be moved to a desired position, it can be disconnected from the movable seat 52. Then, the second clamping member 54 can slide along the second or third slide groove until it reaches the appropriate position, at which point it can be reconnected to the movable seat 52. The positions of the first clamping member 53 and the second clamping member 54 can be adjusted so that they can clamp the first elastic sleeve 300 and the second elastic sleeve 400 at different distances. This allows the fixing component 50 to clamp the first elastic sleeve 300 and the second elastic sleeve 400 of different signal automotive swing arm assemblies, thus broadening the application range of the testing device. Furthermore, when the position of the movable seat 52 needs to be adjusted, it can be disconnected from the mounting base 51, and then slid along the first slide groove. Once the movable seat 52 has moved to the appropriate position, it can be connected to the mounting base 51. During the movement of the movable seat 52, it can drive the first clamping member 53 and the second clamping member 54 to move, thereby adjusting their positions. This further enhances the application breadth of the testing device, enabling it to fix different models of automotive swing arm assemblies.

[0048] In some embodiments, the automotive swing arm 200 assembly test device also includes a mud and water spraying assembly. The mud and water spraying assembly is connected to a spray pipe. The environmental chamber 70 has a spray through hole on its body. The spray pipe passes through the spray through hole and is sealed to the spray through hole. The environmental chamber 70 is provided with at least three flow pipes 81. The first end of each of the at least three flow pipes 81 is connected to the spray pipe. The second ends of each of the at least three flow pipes 81 are respectively directed toward the position where the clamping assembly 60 clamps the ball head assembly 100, the position where the fixing assembly 50 fixes the first elastic sleeve 300, and the position where the fixing assembly 50 fixes the second elastic sleeve 400. The mud and water spraying assembly is used to spray mud and water onto the ball head assembly 100, the first elastic sleeve 300, and the elastic sleeve through the spray pipe and the at least three flow pipes 81.

[0049] By installing a mud and water spraying assembly, mud and water can be sprayed onto the ball joint assembly 100, the first elastic sleeve 300, and the second elastic sleeve 400. This makes the environment of the ball joint assembly 100, the first elastic sleeve 300, and the second elastic sleeve 400 in the environmental chamber 70 closely resemble the actual environment, thereby improving the accuracy of testing the automotive swing arm 200 assembly. Furthermore, by installing the mud and water spraying assembly, mud and water can also be sprayed onto the automotive swing arm 200 assembly separately, allowing for individual performance testing of the automotive swing arm 200 assembly.

[0050] It should be noted that the flow tube 81 can be a flexible tube, which facilitates the arrangement of the flow tube 81 within the environmental chamber 70 according to the space available in the chamber. For example, the flow tube 81 can be a rubber tube. Of course, the flow tube 81 can also be a tubular structure formed of a rigid material, such as a metal tube, or, for example, a rigid plastic tube.

[0051] In some embodiments, the automotive swing arm 200 assembly test device may also include a compressor 90, which is connected to a first pipe 91 and a second pipe 92. The environmental chamber 70 has a first opening and a second opening on its body. One end of the first pipe 91 is sealed to the first opening, and one end of the second pipe 92 is sealed to the second opening. The compressor 90 is used to input gases of different temperatures into the environmental chamber 70 through the first pipe 91 to change the temperature in the environmental chamber 70. The second pipe 92 is used to discharge the gases from the environmental chamber 70.

[0052] With this setup, when it is necessary to adjust the temperature in the ambient chamber 70, i.e., to test the automotive swing arm 200 assembly at different temperatures, the compressor 90 can input gas corresponding to that temperature into the ambient chamber 70, thereby transferring the temperature of the gas to the ambient chamber 70, causing the temperature in the ambient chamber 70 to change until the temperature in the ambient chamber 70 reaches the set temperature, which can then cause at least one of the first drive assembly 20, the second drive assembly 30, and the third drive assembly 40 to move.

[0053] For example, if the automotive swing arm 200 assembly needs to be tested in an environment of 20 degrees Celsius, gas can be injected into the ambient chamber 70 by the compressor 90 to make the temperature in the ambient chamber 70 reach 20 degrees Celsius, and then at least one of the first drive assembly 20, the second drive assembly 30 and the third drive assembly 40 can move.

[0054] In some embodiments, a first seal 701 is connected to the edge or wall of the first clearance hole, and the first connecting rod 21 is sealed to the first clearance hole via the first seal 701. A second seal 702 is connected to the edge or wall of the second clearance hole, and the second connecting rod 31 is sealed to the second clearance hole via the second seal 702. A third seal 703 is connected to the edge or wall of the third clearance hole, and the third connecting rod 41 is sealed to the third clearance hole via the third seal 703.

[0055] This configuration facilitates a sealed connection between the first link 21 and the first clearance hole, a sealed connection between the second link 31 and the second clearance hole, and a sealed connection between the third link 41 and the third clearance hole.

[0056] It should be noted that the types of the first sealing element 701, the second sealing element 702, and the third sealing element 703 can be the same. The first sealing element 701 can be a rubber sealing block with a through hole. The first connecting rod 21 passes through the through hole, and the connection between the first connecting rod 21 and the through hole is sealed with silicone cloth. The configuration of the second sealing element 702 and the third sealing element 703 can refer to the configuration of the first sealing element 701, and will not be repeated here. The silicone cloth is resistant to high and low temperatures and is flexible, achieving a good sealing effect. Alternatively, the first sealing element 701 can be simply silicone cloth, with one end connected to the first clearance hole. The silicone cloth has a through hole, through which the first connecting rod 21 passes and is sealed to the through hole. Similarly, the second sealing element 702 and the third sealing element 703 can also be silicone cloth. The specific types of the first sealing element 701, the second sealing element 702, and the third sealing element 703 are not limited in this embodiment of the invention.

[0057] The following is in conjunction with the appendix Figure 7 and attached Figure 8 The principle of the experimental device of the present invention will be explained in detail below: First, define n as the number of moving components in the mechanism, Pl as the number of lower pairs of constraints in the kinematic mechanism, and Ph as the number of higher pairs of constraints in the kinematic mechanism; the total degree of freedom of the mechanism is F. We analyze the plane containing the first and second directions, and its structural principle is as follows: Figure 8 As shown: According to the principle of calculating the degree of freedom of a planar mechanism, F = 3n - 2Pl - Ph, that is, F = 3 × 6 - 2 × 8 - 0 = 2; Since the third link 41 is fixedly connected to the clamping assembly 60 in the third direction, the connection between the third link 41 and the clamping assembly 60 cannot rotate. Here, one rotational degree of freedom needs to be deducted. Therefore, when the third direction is fixed, the load in the first or second direction only acts on the body of the car swing arm 200 assembly. At this time, the mechanism is decoupled.

[0058] The analysis focuses on the plane containing the first and third directions, and its structural principle is as follows: Figure 7 As shown, according to the principle of calculating the degree of freedom of a planar mechanism, F = 3n - 2Pl - Ph, that is, F = 3 × 5 - 2 × 7 = 1; there is only one degree of freedom here; similarly, if we choose the plane containing the second direction and the third direction for analysis, there is also only 1 degree of freedom; regardless of whether we take the plane containing the first direction and the second direction, or the plane containing the second direction and the third direction, the degree of freedom is the same; since the degree of freedom is 0 when we analyze the driving component of the first direction or the second direction alone; therefore, when the first direction and the second direction are both connected, the loading of the third direction is not affected, and the entire mechanism is decoupled at this time.

[0059] When the swing arm 200 is subjected to a third-direction load, and the vertical movement of the swing arm 200 assembly deviates from the initial plane containing the first and second directions, the load in the first or second direction generates a component force. This component force acts in the third direction and is opposite to the loading direction in the third direction. At this point, load control in the first or second direction can be achieved through compensation control. Figure 7 and Figure 8 It can be seen that the 200-type car swing arm assembly can meet the loading requirements in three directions during the durability test, and the entire mechanism is in a decoupled state.

[0060] It should be noted that, in this embodiment of the invention, reinforcing ribs can be provided on the first fixing base 201, the second fixing base 301, and the third fixing base 401 to increase strength. The first clamping plate 61 and the second clamping plate 62 can be integrally formed and L-shaped, and reinforcing ribs can also be provided between the first clamping plate 61 and the second clamping plate 62 to increase strength. In addition, in this embodiment of the invention, reinforcing ribs can also be provided on the column 001 and the cantilever member 002.

[0061] In this embodiment of the invention, since the mounting component 10 has a mounting surface, and the first driving component 20, the second driving component 30, the third driving component 40, and the environmental box 70 are all fixed on the mounting surface, the first driving component 20, the second driving component 30, the third driving component 40, and the environmental box 70 are all immovable relative to the mounting surface. Since the fixing component 50 is fixed in the environmental chamber 70, and the environmental chamber 70 has a first clearance hole, a second clearance hole, and a third clearance hole, the first drive component 20 is movably connected to the first connecting rod 21, the second drive component 30 is movably connected to the second connecting rod 31, and the third drive component 40 is movably connected to the third connecting rod 41. The first connecting rod 21 passes through the first clearance hole and is sealed to it; the second connecting rod 31 passes through the second clearance hole and is sealed to the hole wall; and the third connecting rod 41 passes through the third clearance hole and is sealed to it. The clamping component 60 is located in the environmental chamber 70, and the first connecting rod 21, the second connecting rod 31, and the third connecting rod 41 are all connected to the clamping component 60. Therefore, it is possible to... After adjusting the temperature inside the ambient chamber 70, the first drive assembly 20 can drive the first link 21 to move, the second drive assembly 30 can drive the second link 31 to move, and the third drive assembly 40 can drive the third link 41 to move. This allows the clamping assembly 60 to move in three directions. After the clamping assembly 60 clamps the ball head, and the fixing assembly 50 clamps the first elastic sleeve 300 and the second elastic sleeve 400, the ball head assembly 100 of the automotive swing arm 200 assembly can have multiple directions of movement through the first drive assembly 20, the second drive assembly 30, and the third drive assembly 40, making the movement of the ball head assembly 100 closer to the movement in actual application. That is, in this embodiment of the invention, by setting a first drive component 20, a second drive component 30, a third drive component 40, and an environmental chamber 70, the temperature in the environmental chamber 70 can be adjusted. Thus, after the automotive swing arm 200 assembly is placed in the environmental chamber 70, the temperature in the actual environment can be simulated by the environmental chamber 70. At least one of the first drive component 20, the second drive component 30, and the third drive component 40 can move to drive the clamping component 60 to move, thereby causing the ball joint component 100 of the automotive swing arm 200 to move. This allows the ball joint component 100 of the automotive swing arm 200 to move in an environment close to the actual environment, thereby enabling better detection of the actual durability performance of the ball joint component 100, the first elastic sleeve 300, and the second elastic sleeve 400 on the automotive swing arm 200 assembly, and improving the accuracy of the detection of the automotive swing arm assembly.

[0062] like Figure 9 As shown, this embodiment of the invention provides a test method, which is applied in the automotive swing arm assembly test device in any of the above embodiments. The test method includes: Step 901: When the temperature in the ambient chamber is at a preset temperature, control at least one of the first drive assembly, the second drive assembly, and the third drive assembly to move, so that the vehicle swing arm assembly moves in the ambient chamber.

[0063] Before controlling the movement of at least one of the first, second, and third drive components, i.e., before placing the vehicle control arm assembly in the environmental chamber, an initial inspection of the vehicle control arm assembly can be performed. Specifically, the control arm and ball joint assembly should be inspected. The ball joint assembly should not have any deformation, and the bolts connecting the ball joint assembly and the control arm should not be noticeably loose or produce abnormal noise. The first and second elastic sleeves should have good internal and external contact without cracks, loosening, delamination, or abnormal noise. Furthermore, the dimensions and all parameters of the vehicle control arm assembly at room temperature should meet the product technical requirements. In addition, in this embodiment of the invention, the stiffness of the elastic sleeves of the vehicle control arm assembly before being placed in the environmental chamber can also be detected by a testing device.

[0064] In addition, the preset temperature can be set according to actual needs. For example, the preset temperature can be the normal temperature, which is 25 degrees Celsius. Another example is the temperature for high temperature and high humidity environments, which is 42 degrees Celsius. Yet another example is the temperature for extreme high temperature environments, which is 60 degrees Celsius. Yet another example is the temperature for low temperature environments, which is -15 degrees Celsius. And yet another example is the temperature for extreme low temperature environments, which is -30 degrees Celsius.

[0065] Furthermore, in this embodiment of the invention, after the temperature in the environmental chamber reaches a preset temperature, at least one of the first drive component, the second drive component, and the third drive component can move. The number of cycles for the first drive component, the second drive component, and the third drive component can be set according to actual needs. For example, 155,000 cycles in a normal temperature environment, 120,000 cycles in a high temperature and high humidity environment, 9,000 cycles in an extreme high temperature environment, 70,000 cycles in a low temperature environment, and 8,000 cycles in an extreme low temperature environment.

[0066] Furthermore, in this embodiment of the invention, after the temperature in the environmental chamber reaches a preset temperature, at least one of the first drive component, the second drive component, and the third drive component can be operated after a preset time. This ensures that the temperature of the vehicle control arm assembly is equal to the temperature in the environmental chamber, avoiding the problem where the temperature in the environmental chamber has reached the preset temperature, but the temperature of the vehicle control arm assembly has not yet reached the preset temperature, thus making the detection of the vehicle control arm assembly more accurate.

[0067] Step 902: Detect whether the vehicle swing arm assembly meets the requirements after movement.

[0068] Among them, when detecting the vehicle swing arm assembly, it is necessary to check that there is no deformation at the swing arm and the ball head assembly, and there is no obvious looseness or abnormal noise in the connecting bolts between the ball head assembly and the swing arm; the inner and outer contacts of the first elastic sleeve are in good condition without cracks, looseness, degumming, abnormal noise, etc., and the inner and outer contacts of the second elastic sleeve are in good condition without cracks, looseness, degumming, abnormal noise, etc.; at room temperature, the dimensions and all parameters of the vehicle swing arm assembly should meet the product technical requirements. In addition, the stiffness of the elastic sleeve of the vehicle swing arm assembly after the test is detected by the detection equipment, and (stiffness after the test - stiffness before the test) / (stiffness before the test) ≤ 20%. If the above requirements are met simultaneously, it indicates that the vehicle swing arm assembly test is qualified; otherwise, it is unqualified.

[0069] In addition, in some implementation manners, the vehicle swing arm assembly test device further includes a mud and water spraying component. When the temperature in the environmental chamber is at the preset temperature, control at least one of the first driving component, the second driving component, and the third driving component to move, so that the vehicle swing arm assembly moves in the environmental chamber, including: when the temperature in the environmental chamber is at the preset temperature, control the spraying component to spray mud and water into the environmental chamber, and control at least one of the first driving component, the second driving component, and the third driving component to move, so that the vehicle swing arm assembly moves in the environmental chamber.

[0070] By spraying mud and water through the spraying component, the environment in the environmental chamber is made closer to the actual environment, which can make the test detection results for the vehicle swing arm assembly more accurate. Among them, the mud and water can be composed of 6 cc (cubic centimeters) of standard test powder + 240 ml of saturated brine + 240 ml of water.

[0071] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A test device for an automotive swing arm assembly, characterized in that, For conducting durability tests on automotive rocker arm assemblies, the automotive rocker arm assembly includes a ball joint assembly, a rocker arm, a first elastic sleeve, and a second elastic sleeve. The rocker arm has a first connecting end, a second connecting end, and a third connecting end. The ball joint assembly is connected to the first connecting end, the first elastic sleeve is connected to the second connecting end, and the second elastic sleeve is connected to the third connecting end. The test apparatus includes: a mounting component, a first drive assembly, a second drive assembly, a third drive assembly, a fixing assembly, a clamping assembly, and an environmental chamber. The mounting component has a mounting surface, and the first drive component, the second drive component, the third drive component, and the environmental box are all fixed on the mounting surface, and the fixing component is fixed in the environmental box; The environmental chamber has a first clearance hole, a second clearance hole, and a third clearance hole. The first drive assembly is movably connected to a first connecting rod, the second drive assembly is movably connected to a second connecting rod, and the third drive assembly is movably connected to a third connecting rod. The first connecting rod passes through the first clearance hole and is sealed to the first clearance hole. The second connecting rod passes through the second clearance hole and is sealed to the edge or wall of the second clearance hole. The third connecting rod passes through the third clearance hole and is sealed to the third clearance hole. The clamping assembly is located in the environmental chamber, and the first link, the second link, and the third link are all connected to the clamping assembly. The clamping assembly is used to connect the ball joint assembly. The fixing assembly is used to fix the first elastic sleeve and the second elastic sleeve. The first driving assembly is used to drive the first link to move along a first direction. The second driving assembly is used to drive the second link to move along a second direction. The third driving assembly is used to drive the third link to move along a third direction. The environmental chamber is used to simulate the actual environment, and the first direction, the second direction, and the third direction are different from each other. Wherein, the first end of the first link is movably connected to the first drive assembly, the second end of the first link is movably connected to the clamping assembly, the first end of the second link is movably connected to the second drive assembly, the second end of the second link is movably connected to the clamping assembly, the first end of the third link is movably connected to the third drive assembly, and the second end of the third link is fixedly connected to the clamping assembly; Wherein, the first end of the first link is connected to a first movable component, the second end of the first link is connected to a second movable component, the first end of the first link is movably connected to the first drive component through the first movable component, and the second end of the first link is movably connected to the clamping component through the second movable component; The first end of the second link is connected to a third movable component, the second end of the second link is connected to a fourth movable component, the first end of the second link is movably connected to the second drive component through the third movable component, and the second end of the second link is movably connected to the clamping component through the fourth movable component; The first end of the third link is connected to the fifth movable component, and the first end of the third link is movably connected to the third drive component through the fifth movable component. The first movable component includes a first mounting base, a first movable bearing, a first movable pin, and a first adjusting screw. The structures of the second movable component, the third movable component, the fourth movable component, and the fifth movable component are all the same as the structure of the first movable component.

2. The automotive swing arm assembly testing device according to claim 1, characterized in that, The first mounting base is connected to the first end of the first connecting rod. The first movable component also includes a first mounting plate with opposite positions. The first mounting base also has a first clamping part, which is located between the first mounting plates with opposite positions. The first clamping part clamps the first movable bearing. The first movable pin passes through the first movable bearing and is movably connected to the first mounting plate. The first adjusting screw is installed on the first clamping part and is used to adjust the clamping force of the first clamping part on the first movable bearing. The first mounting plate is connected to the first drive component.

3. The automotive swing arm assembly testing device according to claim 2, characterized in that, The first clamping part is provided with a first slot with opposite positions, and the first movable bearing is located between the first slots. A first blocking member is provided in the first slot, and the first blocking member is used to prevent the first movable bearing from disengaging from the first clamping part.

4. The automotive swing arm assembly testing device according to claim 1, characterized in that, The first drive assembly includes a first fixed base, a first drive component, and a first connecting plate; The first fixed base is fixed on the mounting surface, the first driving member is mounted on the first fixed base, the first connecting plate is connected to the output end of the first driving member, and the first connecting plate is connected to the first connecting rod. The first driving member is used to drive the first connecting rod to move along the first direction through the first connecting plate. The second drive assembly includes a second fixed base, a second drive component, and a second connecting plate; The second fixed base is fixed on the mounting surface, the second driving member is mounted on the second fixed base, the second connecting plate is connected to the output end of the second driving member, and the second connecting plate is connected to the second connecting rod. The second driving member is used to drive the second connecting rod to move along the second direction through the second connecting plate. The third drive assembly includes a third drive member and a third connecting plate. A column is fixed on the mounting surface. A cantilever member is connected to one end of the column away from the mounting surface. The third drive member is mounted on the cantilever member. The third connecting plate is connected to the output end of the third drive member. The third connecting plate is connected to the third connecting rod. The third drive member is used to drive the third connecting rod to move along the third direction through the third connecting plate.

5. The automotive swing arm assembly testing device according to claim 4, characterized in that, A first force sensor is provided between the first driving component and the first connecting plate. The first force sensor is used to detect the magnitude of the driving force that the first driving component uses to drive the first connecting rod. A second force sensor is provided between the second driving member and the second connecting plate. The second force sensor is used to detect the magnitude of the driving force that drives the second connecting rod by the second driving member. A third force sensor is provided between the third driving component and the third connecting plate. The third force sensor is used to detect the magnitude of the driving force by which the third driving component drives the third connecting rod.

6. The automotive swing arm assembly testing device according to claim 1, characterized in that, The clamping assembly includes a first clamping plate, a second clamping plate, a third clamping plate, a connecting block, and a connector; The first clamping plate is connected to the second clamping plate, and there is a first included angle between the first clamping plate and the second clamping plate. The third clamping plate is connected to both the first clamping plate and the second clamping plate. The connecting block is connected to either the first clamping plate or the second clamping plate. The connecting member is connected to the connecting block and is used to connect the ball head assembly. The first clamping plate is connected to the first connecting rod. The second clamping plate is connected to the second connecting rod. The third clamping plate is connected to the third connecting rod.

7. The automotive swing arm assembly testing device according to claim 1, characterized in that, The fixing assembly includes a mounting base, a movable base, a first clamping member, and a second clamping member; The mounting base has a first connecting surface, on which a first groove is provided along a first extending direction. The movable seat is partially embedded in the groove and is detachably connected to the first connecting surface. The movable seat has a second connecting surface, on which a second groove is provided along the first extending direction and a third groove is provided along the second extending direction. The second groove and the third groove intersect. The first clamping member is embedded in the second groove or the third groove, and the second clamping member is embedded in the second groove or the third groove. Both the first clamping member and the second clamping member are detachably connected to the second connecting surface. The first clamping member is used to clamp the first elastic sleeve, and the second clamping member is used to clamp the second elastic sleeve.

8. The automotive swing arm assembly testing device according to claim 1, characterized in that, The automotive swing arm assembly test device also includes a mud and water spraying assembly, which is connected to a spraying pipe. The environmental chamber has a spraying through hole, through which the spraying pipe passes and is sealed to the spraying through hole. The environmental chamber is provided with at least three flow pipes. The first end of each of the at least three flow pipes is connected to the spray pipe. The second end of each of the at least three flow pipes is respectively directed toward the position where the clamping component clamps the ball head assembly, the position where the fixing component fixes the first elastic sleeve, and the position where the fixing component fixes the second elastic sleeve. The mud and water spraying component is used to spray mud and water onto the ball head assembly, the first elastic sleeve, and the second elastic sleeve through the spray pipe and the at least three flow pipes.

9. The automotive swing arm assembly testing device according to claim 1, characterized in that, The automotive swing arm assembly testing device also includes a compressor, which is connected to a first pipe and a second pipe. The environmental chamber has a first opening and a second opening. One end of the first pipe is sealed to the first opening, and one end of the second pipe is sealed to the second opening. The compressor is used to input gases of different temperatures into the environmental chamber through the first pipe to change the temperature in the environmental chamber. The second pipe is used to discharge the gases from the environmental chamber.

10. The automotive swing arm assembly testing device according to claim 1, characterized in that, A first sealing element is connected to the edge or wall of the first clearance hole, and the first connecting rod is sealed to the first clearance hole through the first sealing element. A second seal is connected to the edge or wall of the second clearance hole, and the second connecting rod is sealed to the second clearance hole through the second seal. A third sealing element is connected to the edge or wall of the third clearance hole, and the third connecting rod and the third clearance hole are sealed together by the third sealing element.

11. A test method, characterized in that, The test method used in the automotive swing arm assembly test apparatus according to any one of claims 1-10 includes: When the temperature in the environmental chamber is at a preset temperature, at least one of the first drive assembly, the second drive assembly, and the third drive assembly is controlled to move, so that the vehicle swing arm assembly moves in the environmental chamber; The test checks whether the car's control arm assembly meets the requirements after movement.

12. The test method according to claim 11, characterized in that, The automotive swing arm assembly test device includes a mud and water spraying assembly; When the temperature in the environmental chamber is at a preset temperature, controlling at least one of the first drive assembly, the second drive assembly, and the third drive assembly to move, so that the vehicle swing arm assembly moves in the environmental chamber, includes: When the temperature in the environmental chamber is at a preset temperature, the mud spraying assembly is controlled to spray mud into the environmental chamber, and at least one of the first drive assembly, the second drive assembly, and the third drive assembly is controlled to move, so that the vehicle swing arm assembly moves in the environmental chamber.

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