A swing arm swing detection method and system

Abstract

The present application relates to the field of vehicle swing arm, and in particular to a swing arm swing detection method and system. Based on the swing arm swing detection instruction trigger, the swing arm is carried to the movable seat assembly to reach the initial state; the swing measurement assembly clamps one end of the swing rod unit of the swing arm; the swing measurement assembly drives the swing rod unit to swing relative to the connecting arm unit of the swing arm, and obtains first swing data and second swing data; based on the first swing data and the second swing data, the swing arm swing detection result is obtained. In this way, the problem that it is difficult to accurately reflect the resistance of the ball head and the swing arm in the swing arm detection process is solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle swing arms, and more specifically, to a swing arm swing detection method and system. Background Technology

[0002] The control arm assembly is a crucial component of the suspension system, comprising the control arm and ball joint. The ball joint is the core connecting component for rotation and sway between vehicle parts. It is often assembled with the control arm using a riveting process, where external force causes plastic deformation at the riveted joint to achieve a stable connection. To ensure the vehicle can balance steering and support, the ball joint and control arm must accommodate relative sway and limit movement after installation. After assembly, the torque driving the relative sway of the control arm and ball joint needs to be tested. If the torque driving the relative sway of the control arm and ball joint is too low, the connection strength between the control arm and ball joint is considered insufficient.

[0003] However, current testing equipment only detects the torque of the relative swing of the swing arm and the ball joint, which means that the torque data collected by the testing equipment cannot accurately reflect the resistance of the ball joint and the swing arm. Summary of the Invention

[0004] To address the problem of accurately reflecting the resistance of the ball head and the swing arm during swing arm detection, this invention provides a swing arm swing detection method and system.

[0005] In a first aspect, the present invention provides a method for detecting the swing arm sway, the method comprising:

[0006] Triggered by the swing arm swing detection command, the swing arm is moved onto the movable seat assembly to reach the initial state; wherein, the initial state includes the swing arm being positioned and clamped on the movable seat assembly;

[0007] The pendulum assembly clamps one end of the pendulum rod unit of the pendulum arm;

[0008] The pendulum testing component drives the pendulum unit to swing relative to the connecting arm unit of the pendulum arm, and acquires first swing data and second swing data;

[0009] Based on the first swing data and the second swing data, the swing detection result of the swing arm is obtained.

[0010] In some embodiments, the swing arm includes a swing rod unit and a connecting arm unit; the swing rod unit includes a swing rod body and a swing ball; the swing rod body is connected to the swing ball; the connecting arm unit includes a connecting arm seat and a rivet ring; the connecting arm seat is configured as a housing with one open end; the rivet ring is connected to the connecting arm seat; the rivet ring is disposed at the open end of the connecting arm seat; the swing ball is disposed within the enclosing space of the connecting arm seat and the rivet ring; the swing rod body passes through the enclosing space of the inner peripheral wall of the rivet ring;

[0011] The pendulum assembly that holds the pendulum arm includes one end of the pendulum rod unit:

[0012] The ring-mounted assembly clamps the swing arm unit;

[0013] The movable seat assembly adjusts the swing arm to a first set state; wherein, the first set state includes the swing arm swinging relative to the rivet ring, such that the minimum distance between the set protrusion position of the rivet ring and the minimum distance between the swing arm and the swing arm in the radial direction of the swing arm is less than or equal to a first set distance; the set protrusion position includes the position where the distance between one axial end of the rivet ring and the ring measuring assembly along the axial direction of the rivet ring is the minimum.

[0014] The space surrounded by the ring measurement component is moved to a position that is spaced apart from the swing arm unit;

[0015] The pendulum assembly clamps the outer periphery of the pendulum rod.

[0016] In some embodiments, the ring test assembly includes a clamping unit and a ring test head; the clamping unit is slidably connected to the ring test head;

[0017] The movable seat assembly adjusts the swing arm to the first preset state by:

[0018] The movable seat assembly adjusts the swing arm to a second set state; wherein, the second set state includes the axial direction of the rivet ring of the swing arm being parallel to the axial direction of the ring measuring head of the ring measuring assembly;

[0019] The ring probe moves to abut against one axial end of the riveting ring;

[0020] The ring probe rotates around the central axis of the rivet ring by a first set angle to obtain the set protrusion position; wherein, the first set angle is greater than or equal to 360°, and the set protrusion position includes the position where the distance between one axial end of the rivet ring and the clamping unit along the axial direction of the rivet ring is the smallest;

[0021] The clamping unit clamps one end of the swing arm's swing rod unit;

[0022] The movable seat assembly moves the set protrusion position of the rivet ring toward the swing arm body closer to the swing arm unit to a first set state.

[0023] In some embodiments, the swing arm further includes a ball seat unit; the ball seat unit includes a ball seat body and a second oil storage cavity; the ball seat body is configured as a shell with one end open; the second oil storage cavity is recessed from the bottom end of the opening of the ball seat body toward a direction away from the opening of the ball seat body; the ball seat body is disposed within the space enclosed by the connecting arm seat and the riveting ring; the outer peripheral surface of the ball seat body is connected to the inner peripheral wall of the connecting arm seat; the inner peripheral wall of the ball seat body is slidably connected to the swing ball;

[0024] The swing arm unit also includes a clearance portion; the clearance portion is recessed from the end of the swing ball away from the swing arm body toward the swing arm body;

[0025] The first setting state also includes at least a portion of the avoidance portion being disposed within the surrounding space of the inner peripheral wall of the ball seat.

[0026] In some embodiments, the pendulum measurement assembly drives the pendulum unit to swing relative to the connecting arm unit of the pendulum arm, and the acquisition of first swing data and second swing data includes:

[0027] The swing test component drives the swing arm unit to move toward a set position and acquires first swing data; wherein, the set position is the symmetrical position of the swing arm unit along the radial direction of the riveting ring when the first set state is reached, and the first swing data is the starting torque of the swing arm unit from rest to the relative swing of the swing arm unit and the connecting arm unit;

[0028] The pendulum testing component continues to drive the pendulum unit to move and acquire the second swing data.

[0029] In some embodiments, the pendulum measurement component continues to drive the pendulum unit to move and acquire second oscillation data, including:

[0030] The pendulum assembly drives the pendulum unit to move to the set position;

[0031] The pendulum component drives the pendulum unit to move toward the position of the pendulum unit in the first preset state;

[0032] Based on the fact that the pendulum unit moves a first set distance closer to the ring measuring component, second swing data is obtained; wherein, the second swing data includes the minimum driving force data of the pendulum measuring component during the process from the pendulum unit moving the first set distance closer to the ring measuring component to the pendulum unit moving to the first set state.

[0033] In some embodiments, the movable seat assembly adjusts the swing arm to a second preset state by:

[0034] The ring-mounted component drives the pendulum body to rotate around its own axis;

[0035] Based on the ring measuring component driving the pendulum body to rotate around its own axis by a second set angle, the movable seat component adjusts the pendulum arm to a second set state.

[0036] In a second aspect, the present invention provides a swing arm swing detection system, wherein the swing arm swing detection system is applied to any of the swing arm swing detection methods described in the first aspect; the swing arm swing detection system includes:

[0037] The swing arm includes a swing rod unit and a connecting arm unit; one end of the swing rod unit is slidably connected to the connecting arm unit, and the other end extends away from the connecting arm unit.

[0038] A movable seat assembly is used to fix the connecting arm unit;

[0039] A pendulum assembly is used to drive the pendulum unit to swing relative to the connecting arm unit;

[0040] The detection states of the swing arm rotation detection system include: the movable seat assembly fixing the connecting arm unit, and the swing test assembly driving the swing arm unit to swing to obtain first swing data and second swing data.

[0041] In some embodiments, the rocker arm unit includes a rocker arm body and a rocker ball; the rocker arm body is connected to the rocker ball; the connecting arm unit includes a connecting arm seat and a rivet ring; the connecting arm seat is configured as a housing with one open end; the rivet ring is connected to the connecting arm seat; the rivet ring is disposed at the open end of the connecting arm seat; the rocker ball is disposed within the enclosing space of the connecting arm seat and the rivet ring; the rocker arm body passes through the enclosing space of the inner peripheral wall of the rivet ring;

[0042] The movable seat assembly includes a movable seat unit and a tilting unit; the tilting unit is driven to be connected to the movable seat unit; the movable seat unit is used to fix the connecting arm seat;

[0043] The swing test assembly includes a clamping unit and a ring probe; the clamping unit is slidably connected to the ring probe; the clamping unit is used to drive the swing rod body to rotate around its own axis; the ring probe is used to detect the rivet ring;

[0044] The adjustment states of the swing arm rotation detection system include: the movable seat unit fixes the connecting arm unit; after the ring probe abuts against one axial end of the rivet ring, it rotates around the central axis of the rivet ring by a first set angle and obtains a set protrusion position; subsequently, the sway unit adjusts the swing arm to a first set state through the movable seat unit; wherein, the first set state includes a minimum distance between the set protrusion position of the rivet ring and the minimum distance between the swing arm body in the radial direction of the swing arm body and a first set distance; the set protrusion position includes the position where the minimum distance between one axial end of the rivet ring and the clamping unit along the axial direction of the rivet ring is the smallest; and the first set angle is greater than or equal to 360°.

[0045] In some embodiments, the swing arm further includes a ball seat unit; the ball seat unit includes a ball seat body and a second oil storage cavity; the ball seat body is configured as a shell with one end open; the second oil storage cavity is recessed from the bottom end of the opening of the ball seat body toward a direction away from the opening of the ball seat body; the ball seat body is disposed within the space enclosed by the connecting arm seat and the riveting ring; the outer peripheral surface of the ball seat body is connected to the inner peripheral wall of the connecting arm seat; the inner peripheral wall of the ball seat body is slidably connected to the swing ball;

[0046] The swing arm unit also includes a clearance portion; the clearance portion is recessed from the end of the swing ball away from the swing arm body toward the swing arm body;

[0047] The first setting state also includes at least a portion of the avoidance portion being disposed within the surrounding space of the inner peripheral wall of the ball seat.

[0048] To address the problem of accurately reflecting the resistance of the ball joint and the swing arm during the swing arm detection process, this invention has the following advantages:

[0049] The swing arm unit is driven by a swing testing component to swing relative to the connecting arm unit of the swing arm to obtain first swing data and second swing data. The first swing data detects the starting torque of the swing arm, and the second swing data detects the motion torque of the swing arm. This avoids interference from uneven riveting at the ball joint in the preceding process, thus solving the problem of low accuracy in ball joint torque detection of the swing arm. At the same time, it accurately obtains the starting torque and motion torque of the swing arm, avoiding abnormal noises during subsequent vehicle assembly due to insufficient starting torque and motion torque. Attached Figure Description

[0050] Figure 1 A flowchart of a swing arm swing detection method according to one embodiment is shown;

[0051] Figure 2 A schematic diagram of a swing arm swing detection system according to one embodiment is shown;

[0052] Figure 3 It shows Figure 2 Side view of the swing arm swing detection system in the middle;

[0053] Figure 4 A schematic diagram of the swing arm is shown;

[0054] Figure 5 It shows Figure 4 Cross-sectional view of the middle swing arm;

[0055] Figure 6 It shows Figure 4 A schematic diagram of the ball seat unit in the swing arm.

[0056] Reference numerals: Movable seat assembly 10; Movable seat unit 11; Movable seat body 111; First positioning part 112; Second positioning part 113; Third positioning part 114; Swinging unit 12; First driving part 121; Second driving part 122; Third driving part 123; Ring pressing assembly 20; Pressing ring 21; Fourth driving part 22; Ring measuring assembly 30; First driving unit 31; Vertical moving part 311; Rotating part 312; Clamping unit 32; Clamping seat 321; Clamping head 322; Ring measuring head 33 ; Swinging measuring assembly 40; Second drive unit 41; First translation part 411; Second translation part 412; Swinging measuring unit 42; Swinging measuring seat 421; Swinging measuring claw 422; Sixth drive part 423; Swing arm 50; Ball seat unit 51; Ball seat body 511; First oil storage chamber 512; Second oil storage chamber 513; Swing rod unit 52; Swing rod body 521; Swing ball 522; Avoidance part 523; Connecting arm unit 53; Connecting arm seat 531; Riveting ring 532; First connecting arm 533; Second connecting arm 534. Detailed Implementation

[0057] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0058] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0059] The control arm assembly is a crucial component of the suspension system, comprising the control arm and ball joint. The ball joint is the core connecting component for rotation and sway between vehicle parts, and its assembly with the control arm often employs a riveting process, using external force to plastically deform the riveted area to achieve a stable connection. To ensure the vehicle can balance steering and support, the ball joint and control arm must accommodate relative sway and limit movement after installation. After assembly, the torque driving the relative sway of the control arm and ball joint needs to be tested. If the torque driving the relative sway of the control arm and ball joint is too low, the connection strength between the control arm and ball joint is considered insufficient. However, current testing equipment only measures the torque of the relative sway of the control arm and ball joint, resulting in torque data that cannot accurately reflect the resistance of the ball joint and control arm.

[0060] Example 1:

[0061] To address the above problems, this invention provides a method for detecting the swing of a 50-arm swing. For example... Figure 2 , Figure 3 , Figure 4 As shown, the swing detection system of the swing arm 50 involved in the swing detection method of the swing arm 50 includes the swing arm 50, the movable seat assembly 10, and the swing measurement assembly 40.

[0062] The swing arm 50 includes a swing rod unit 52 and a connecting arm unit 53. One end of the swing rod unit 52 is slidably connected to the connecting arm unit 53, and the other end extends outwards, with the extended end used by the swing test assembly 40 to subsequently clamp and apply driving force. The movable seat assembly 10 is used to fix the connecting arm unit 53, preventing displacement or shaking of the connecting arm unit 53 during testing. It provides a fixed reference for the stable swing of the swing rod unit 52 relative to the connecting arm unit 53, ensuring that the driving force of the swing test assembly 40 is accurately applied to generate relative swing, preventing deviation of the swing rod swing trajectory and torque data acquisition deviation, and ensuring stable swing detection. The swing test assembly 40 is used to drive the swing rod unit 52 and the connecting arm unit 53 to swing relative to each other, simulating the actual movement of the swing arm 50, and conducting torque detection during the start-up and movement phases. The detection state of the swing arm 50 rotation detection system is as follows: the movable seat assembly 10 fixes the connecting arm unit 53, and the swing test assembly 40 drives the swing rod unit 52 to swing and acquire the first swing data and the second swing data. This state can standardize the detection process, ensure that the data completely reflects the torque performance of the swing arm 50, and ensure that the detection is standardized and the data is reliable.

[0063] In this embodiment, as Figure 1 As shown, the swing detection method of the swing arm 50 includes steps S10 to S40, which will be described in detail below:

[0064] Step S10: Based on the swing detection command of the swing arm 50, the swing arm 50 is moved onto the movable seat assembly 10 to reach the initial state, thereby ensuring that the swing arm 50 is in a stable posture and preventing displacement of the swing arm 50 during subsequent detection. This provides an accurate reference for subsequent clamping and swinging operations, thus ensuring the stability of the detection process. The initial state includes the positioning and clamping of the swing arm 50 on the movable seat assembly 10.

[0065] In step S20, the oscillating assembly 40 clamps one end of the swing arm 50's swing rod unit 52, providing a reliable force support point to ensure that the swing driving force can be stably transmitted to the swing rod unit 52, thereby ensuring the smoothness of the swing process and avoiding the effect of swing interruption or data acquisition distortion due to unstable clamping.

[0066] In step S30, the pendulum measuring component 40 drives the pendulum rod unit 52 to swing relative to the connecting arm unit 53 of the pendulum arm 50, acquiring first swing data and second swing data. The first swing data is the driving torque data output by the pendulum measuring component 40 when the connecting arm unit 53 and the pendulum rod unit 52 move from relative rest to relative swing, i.e., the starting torque. The second swing data is the driving torque data output by the pendulum measuring component 40 during the relative swing of the connecting arm unit 53 and the pendulum rod unit 52, i.e., the motion torque.

[0067] Step S40: Based on the first swing data and the second swing data, obtain the swing detection result of the swing arm 50. This enables a comprehensive evaluation of the resistance of the swing arm unit 52 and the connecting arm unit 53, thereby accurately determining whether the resistance of the swing arm unit 52 and the connecting arm unit 53 meets the usage requirements, and ultimately providing a clear basis for determining the quality of the swing arm 50.

[0068] Furthermore, such as Figure 4 , Figure 5 As shown, the swing arm 50 includes a swing rod unit 52 and a connecting arm unit 53. The swing rod unit 52 includes a swing rod body 521 and a swing ball 522. The swing rod body 521 and the swing ball 522 are integrally formed, thereby ensuring the overall strength of the swing rod unit 52 and ensuring that the torque of the swing rod unit 52 can be stably transmitted after it is put into use. The connecting arm unit 53 includes a connecting arm seat 531 and a riveting ring 532. The connecting arm seat 531 is a shell with one open end. The riveting ring 532 is connected to the connecting arm seat 531 and is located at the open end of the connecting arm seat 531. The swing ball 522 is located in the space enclosed by the connecting arm seat 531 and the riveting ring 532, that is, the inner circumferential arm of the connecting arm seat 531. The swing rod body 521 passes through the space enclosed by the inner circumferential wall of the riveting ring 532. By riveting the riveting ring 532 to the swing rod unit 52, a stable connection between the swing rod unit 52 and the connecting arm unit 53 can be achieved.

[0069] Step S20 includes steps S21 to S24. The swing detection method for the swing arm 50 executes steps S10, S21, S22, S23, S24, S30, and S40 sequentially. Steps S21 to S24 will be described in detail below:

[0070] In step S21, the ring test assembly 30 clamps the swing arm unit 52, providing an initial clamping basis for the subsequent position adjustment and swing detection of the swing arm unit 52, and ensuring the smooth implementation of subsequent operations such as the adjustment of the first set state.

[0071] In step S22, the movable seat assembly 10 adjusts the swing arm 50 to a first set state, thereby realizing the swing of the swing rod body 521 relative to the rivet ring 532. This causes the movable seat assembly 10 and the swing rod unit 52 to be relatively tilted, resulting in a larger gap between the set protrusion position and the swing rod unit 52 within the swing arm 50. This reduces the resistance between the swing rod unit 52 and the swing arm 50, thus reducing the driving force of the swing measuring assembly 40 and consequently, the first swing data is smaller, making the obtained first swing data more accurate. The first set state includes the swing of the swing rod body 521 relative to the rivet ring 532, such that the minimum radial distance between the set protrusion position of the rivet ring 532 and the swing rod body 521 is less than or equal to a first set distance. The set protrusion position includes the position where the axial distance between one end of the rivet ring 532 and the ring measuring assembly 30 along the axial direction of the rivet ring 532 is the smallest, i.e., the highest position of the top of the rivet ring 532.

[0072] In step S23, the space surrounded by the ring measurement component 30 is moved to a distance from the pendulum unit 52, thereby avoiding contact interference between the ring measurement component 30 and the pendulum unit 52 during the subsequent swing of the pendulum unit 52, ensuring that the pendulum unit 52 can swing smoothly and guaranteeing the accuracy of the first swing data and the second swing data acquisition.

[0073] In step S24, the pendulum assembly 40 clamps the outer periphery of the pendulum rod body 521, thereby achieving stable clamping of the pendulum rod body 521. This provides a reliable force application point for the pendulum assembly 40 to drive the pendulum rod unit 52 to swing relative to the connecting arm unit 53, preventing the pendulum rod body 521 from detaching from the clamp during the swing process, ensuring smooth swing operation and data acquisition, and achieving the effect of improving the stability of the detection process.

[0074] Furthermore, such as Figure 3 As shown, the ring test assembly 30 includes a clamping unit 32 and a ring test head 33. The clamping unit 32 and the ring test head 33 are slidably connected, and the slidable connection provides an adjustable structural basis for the subsequent movement and rotation of the ring test head 33.

[0075] Step S22 includes steps S221 to S225. The swing detection method for the swing arm 50 executes steps S10, S21, S221, S222, S223, S224, S225, S23, S24, S30, and S40 sequentially. Steps S221 to S225 will be described in detail below:

[0076] In step S221, the movable seat assembly 10 adjusts the swing arm 50 to the second set state and levels the rivet ring 532 to facilitate subsequent steps. The second set state includes the axial direction of the rivet ring 532 of the swing arm 50 being parallel to the axial direction of the ring measuring head 33 of the ring measuring assembly 30.

[0077] In step S222, the ring probe 33 moves to abut against one axial end of the rivet ring 532, that is, the rivet ring 532 abuts against one end near the clamping unit 32, ensuring the stability of the set protrusion position acquisition.

[0078] In step S223, the ring probe 33 rotates around the central axis of the riveting ring 532 by a first set angle to obtain the set protrusion position. This performs a comprehensive scan of one axial end of the riveting ring 532, ensuring no possible protrusion positions are missed, thereby accurately identifying the set protrusion position and guaranteeing the comprehensiveness and accuracy of the set protrusion position identification. It should be understood that the maximum upward distance moved by the ring probe 33 during the rotation of the first set angle is used to obtain the set protrusion position. The first set angle is greater than or equal to 360°, and the set protrusion position includes the position where the distance between one axial end of the riveting ring 532 and the clamping unit 32 along the axial direction of the riveting ring 532 is minimized.

[0079] In step S224, the clamping unit 32 clamps one end of the swing arm 50's swing rod unit 52, fixing the position of the swing rod unit 52 to prevent the swing rod unit 52 from shaking or shifting when the movable seat assembly 10 adjusts the position of the rivet ring 532, ensuring that the adjustment action can be accurately applied to the rivet ring 532, thereby ensuring the accuracy of the subsequent first set state adjustment.

[0080] In step S225, the movable seat assembly 10 moves the set protrusion position of the rivet ring 532 toward the direction of the swing rod body 521 near the swing rod unit 52 to the first set state, thereby realizing the swing rod body 521 swinging relative to the rivet ring 532, so that the movable seat assembly 10 and the swing rod unit 52 are relatively tilted, making the gap between the set protrusion position and the swing rod unit 52 in the swing arm 50 larger. In this way, the resistance between the swing rod unit 52 and the swing arm 50 is smaller, the driving force of the swing measuring assembly 40 is smaller, and thus the first swing data is smaller, and the obtained first swing data is more accurate.

[0081] Furthermore, such as Figure 5 , Figure 6 As shown, the swing arm 50 also includes a ball seat unit 51. The ball seat unit 51 includes a ball seat body 511 and a second oil reservoir 513. The ball seat body 511 is configured as a shell with one open end, and the second oil reservoir 513 is recessed from the bottom of the opening of the ball seat body 511 in a direction away from the opening of the ball seat body 511, i.e. Figure 5As shown, it is recessed downwards. The ball seat 511 is disposed within the space enclosed by the connecting arm seat 531 and the rivet ring 532. The outer peripheral surface of the ball seat 511 is connected to the inner peripheral wall of the connecting arm seat 531, and the inner peripheral wall of the ball seat 511 is slidably connected to the swing ball 522, thereby providing stable swing support for the swing ball 522. The recessed structure of the second oil storage cavity 513 can store lubricating oil, reduce the sliding friction between the swing ball 522 and the inner peripheral wall of the ball seat 511, and avoid swing obstruction or component wear due to excessive friction, thereby ensuring the smooth swing of the swing ball 522 and extending the service life of the component.

[0082] The swing arm unit 52 also includes a clearance part 523. The clearance part 523 is recessed from the end of the swing ball 522 away from the swing arm body 521 toward the swing arm body 521, thereby ensuring that the second oil storage chamber 513 has a larger oil storage space, and thus ensuring the smooth swing between the swing ball 522 and the ball seat unit 51.

[0083] The first setting also includes at least a portion of the clearance portion 523 being disposed within the space enclosed by the inner peripheral wall of the ball seat body 511. This allows the inner peripheral wall of the ball seat body 511 to be fitted onto the outer peripheral wall of at least a portion of the clearance portion 523. Simultaneously, in conjunction with the tilting operation of the swing arm 50, the second oil reservoir 513 can cover a portion of the spherical surface of the swing ball 522, ensuring that the lubricating oil can fully act on the contact area between the swing ball 522 and the ball seat body 511, further reducing sliding friction, ensuring the stability and smoothness of the swing ball 522 during swing, and providing a good swing foundation for the subsequent swing measurement assembly 40 to drive the swing arm unit 52 to swing and accurately acquire the first swing data and the second swing data, thereby improving the accuracy of the swing detection data.

[0084] Meanwhile, by using the avoidance part 523, the contact area between the swing ball 522 and the ball seat 511 is reduced in the first set state. This further reduces the resistance between the swing ball 522 and the ball seat 511, thereby making the resistance of the swing arm 50 and the swing rod unit 52 smaller, and thus improving the accuracy of obtaining the first swing data.

[0085] Further, step S30 includes steps S31 and S32. The swing detection method for the swing arm 50 sequentially executes steps S10, S21, S22, S23, S24, S31, S32, and S40. Steps S31 and S32 will be described in detail below:

[0086] In step S31, the pendulum testing component 40 drives the pendulum unit 52 to move towards a set position and acquires the first swing data to test the starting torque of the pendulum unit 52. The starting torque test is a process from low resistance to high resistance. Since the set position is the symmetrical position of the pendulum unit 52 in the first set state, it ensures that the test starts from the position where the resistance of the pendulum unit 52 is low, thereby accurately measuring the minimum starting torque of the pendulum unit 52 and avoiding the problem of not being able to obtain the true minimum starting torque due to testing the starting torque from the position where the resistance is high. Specifically, the set position is the symmetrical position of the pendulum unit 52 along the radial direction of the riveting ring 532 in the first set state, and the first swing data is the starting torque of the pendulum unit 52 from rest to the relative swing of the pendulum unit 52 and the connecting arm unit 53.

[0087] In step S32, the pendulum testing component 40 continues to drive the pendulum unit 52 to move and acquires the second swing data. After completing the start-up test and acquiring the first swing data, the pendulum testing component 40 continues to drive the pendulum unit 52 to move and acquire the second swing data, which can realize the motion test of the pendulum unit 52 and ensure that the resistance of the pendulum unit 52 from start-up to motion can be fully collected.

[0088] Further, step S32 includes steps S321 to S323. The swing detection method for the swing arm 50 sequentially executes steps S10, S21, S22, S23, S24, S31, S321, S322, S323, and S40. Steps S321 to S323 will be described in detail below:

[0089] In step S321, the pendulum testing component 40 drives the pendulum unit 52 to move to the set position, so that when the pendulum unit 52 moves to the first set position, the resistance of the pendulum unit 52 and the swing arm 50 changes from a large resistance to a small resistance, thus avoiding the excessive resistance of the pendulum unit 52 and the swing arm 50 caused by starting the test directly from the set position, thereby avoiding obtaining too much accurate second swing data.

[0090] In step S322, the pendulum assembly 40 drives the pendulum unit 52 to move toward the position of the pendulum unit 52 in the first set state, that is, the pendulum unit 52 moves from the set position toward the set protrusion position.

[0091] Step S323: Based on the movement of the pendulum unit 52 near the end of the ring measuring component 30 by a first set distance, second swing data is acquired. The second swing data includes the minimum driving force data of the ring measuring component 40 during the process of the pendulum unit 52 moving a first set distance near the top of the pendulum body 521 until the pendulum unit 52 reaches a first set state. The first set distance is 1~15mm. This avoids the large resistance that occurs at the beginning of the movement test from the set position, because static friction is greater than dynamic friction, and the resistance of the pendulum arm 50 and pendulum unit 52 during the starting phase is greater than the resistance during the movement phase. This avoids detection misjudgment due to excessive starting force, thereby ensuring that the second swing data can accurately reflect the torque situation of the pendulum unit 52 in the movement state, and ensuring that the acquired data is the minimum driving force data of the ring measuring component 40.

[0092] Furthermore, such as Figure 6 As shown, the ball seat unit 51 includes a plurality of first oil storage chambers 512. The first oil storage chambers 512 extend from the outer peripheral surface of the ball seat body 511 to the inner peripheral surface of the ball seat body 511. The plurality of first oil storage chambers 512 are arranged sequentially at intervals around the central axis of the ball seat body 511.

[0093] Step S221 includes steps S2211 and S2212. The swing detection method for the swing arm 50 executes steps S10, S21, S2211, S2212, S222, S223, S224, S225, S23, S24, S30, and S40 sequentially. Steps S2211 and S2212 will be described in detail below:

[0094] In step S2211, the ring measuring component 30 drives the swing arm body 521 to rotate around its own axis, so that the grease in the first oil storage chamber 512 and the second oil outlet chamber is evenly distributed in the contact area between the swing ball 522 and the inner peripheral wall of the ball seat body 511. This reduces the frictional resistance when the swing arm unit 52 swings relative to the connecting arm unit 53, laying a lubrication foundation for the subsequent stable swing detection and obtaining accurate torque data, and achieving the effect of ensuring the smoothness of the subsequent swing process.

[0095] In step S2212, based on the ring-mount component 30 driving the swing arm 521 to rotate around its own axis by a second predetermined angle, the movable seat component 10 adjusts the swing arm 50 to the second predetermined state. The second predetermined angle can be greater than 360°. This ensures that the swing arm 521 rotates fully, allowing the grease to evenly cover the contact surface between the swing ball 522 and the ball seat 511, avoiding uneven lubrication due to insufficient rotation angle. The second predetermined angle is greater than any third predetermined angle; wherein, the third predetermined angle is the minimum included angle between the lines connecting the two adjacent second oil storage chambers 513 to the central axis of the ball seat 511 along the axial direction of the ball seat 511.

[0096] Example 2:

[0097] In this embodiment, as Figure 2 , Figure 3 , Figure 4 As shown, the present invention provides a swing arm 50 swing detection system. The swing arm 50 swing detection system is applied to any of the swing arm 50 swing detection methods in Embodiment 1. The swing arm 50 swing detection system includes a swing arm 50, a movable seat assembly 10, and a swing measurement assembly 40.

[0098] The swing arm 50 includes a swing rod unit 52 and a connecting arm unit 53. One end of the swing rod unit 52 is slidably connected to the connecting arm unit 53, and the other end extends away from the connecting arm unit 53. The extended end of the swing rod unit 52 is used to subsequently clamp the swing measuring assembly 40 and apply driving force.

[0099] The movable seat assembly 10 is used to fix the connecting arm unit 53, which can prevent the connecting arm unit 53 from being displaced or shaking during the detection process when the pendulum assembly 40 drives the pendulum unit 52 to swing. It provides a fixed reference for the stable swing of the pendulum unit 52 relative to the connecting arm unit 53, ensuring that the driving force applied by the pendulum assembly 40 can be accurately applied to the pendulum unit 52 to generate relative swing. It prevents the swing trajectory of the pendulum unit 52 from deviating due to the loosening of the connecting arm unit 53, which would affect the accuracy of the first swing data and the second swing data acquisition, and achieve the effect of ensuring the stability of the swing detection process.

[0100] The pendulum test assembly 40 is used to drive the pendulum unit 52 and the connecting arm unit 53 to swing relative to each other, simulate the motion state of the pendulum arm 50 in actual use, and then carry out torque detection of the first swing data and the second swing data.

[0101] The detection states of the swing arm 50 rotation detection system include: the movable seat assembly 10 fixing the connecting arm unit 53, and the swing test assembly 40 driving the swing rod unit 52 to swing and acquire first swing data and second swing data. By observing these detection states, a standardized detection process can be established, ensuring that the acquired first and second swing data fully reflect the torque performance of the swing arm 50 from start-up to movement, thus ensuring that the swing arm 50 swing detection process is standardized and the data is comprehensive and reliable.

[0102] Furthermore, such as Figure 5As shown, the rocker arm unit 52 includes a rocker arm body 521 and a rocker ball 522. The rocker arm body 521 and the rocker ball 522 are integrally formed, thereby ensuring the overall strength of the rocker arm unit 52 and ensuring that the torque of the rocker arm unit 52 can be stably transmitted after being put into use. The connecting arm unit 53 includes a connecting arm seat 531 and a rivet ring 532. The connecting arm seat 531 is a shell with one open end, and the rivet ring 532 is connected to the connecting arm seat 531 and is located at the open end of the connecting arm seat 531. The rocker ball 522 is located within the space enclosed by the connecting arm seat 531 and the rivet ring 532, that is, the inner peripheral wall of the connecting arm seat 531. The rocker arm body 521 passes through the space enclosed by the inner peripheral wall of the rivet ring 532. The enclosing space formed by the connecting arm seat 531 and the rivet ring 532 can limit the swing ball 522, ensuring that the swing ball 522 only slides and contacts the ball seat body 511 within a limited range, thus avoiding the swing ball 522 from deviating and causing abnormal relative swing trajectory between the swing arm unit 52 and the connecting arm unit 53.

[0103] The movable seat assembly 10 includes a movable seat unit 11 and a tilting unit 12. The tilting unit 12 is driven to the movable seat unit 11, enabling the tilting unit 12 to drive the movable seat unit 11 to adjust its posture. The movable seat unit 11 is used to fix the connecting arm seat 531, preventing the connecting arm seat 531 from shifting during adjustment. It provides a fixed reference for the subsequent adjustment of the swing arm 50 to the first set state by the tilting unit 12, preventing deviation in the posture adjustment of the swing arm 50 due to loosening of the connecting arm seat 531, ensuring that the adjustment action is accurately applied to the swing arm 50, and achieving the effect of ensuring the stability and accuracy of the posture adjustment of the swing arm 50.

[0104] The pendulum testing assembly 40 includes a clamping unit 32 and a ring probe 33. The clamping unit 32 and the ring probe 33 are slidably connected, and this sliding connection provides an adjustable structural basis for the subsequent movement and rotation of the ring probe 33. The clamping unit 32 is used to drive the pendulum body 521 to rotate around its own axis. The ring probe 33 is used to detect the set protrusion position of the rivet ring 532.

[0105] The adjustment state of the swing arm 50 rotation detection system includes: the movable seat unit 11 fixes the connecting arm unit 53; after the ring probe 33 abuts against one axial end of the rivet ring 532, it rotates around the central axis of the rivet ring 532 by a first set angle and obtains the set protrusion position; then, the deflection unit 12 adjusts the swing arm 50 to the first set state through the movable seat unit 11. The first set state includes a minimum distance between the set protrusion position of the rivet ring 532 and the swing arm body 521 in the radial direction of the swing arm body 521 that is less than or equal to a first set distance; the set protrusion position includes the position where the distance between one axial end of the rivet ring 532 and the clamping unit 32 along the axial direction of the rivet ring 532 is the smallest; and the first set angle is greater than or equal to 360°. This achieves the deflection of the swing arm unit 52, so that the swing arm 50 reaches the first set state required for detection. This provides a compliant initial posture for the subsequent swing testing assembly 40 to drive the swing arm unit 52 to swing and accurately collect the first and second swing data, ensuring the accuracy of the torque detection data.

[0106] Furthermore, such as Figure 6 As shown, the swing arm 50 also includes a ball seat unit 51. The ball seat unit 51 includes a ball seat body 511 and a second oil reservoir 513. The ball seat body 511 is configured as a shell with one open end, and the second oil reservoir 513 is recessed from the bottom of the opening of the ball seat body 511 in a direction away from the opening of the ball seat body 511, i.e. Figure 5 As shown, it is concave downwards. The ball seat 511 is disposed within the space enclosed by the connecting arm seat 531 and the rivet ring 532. The outer peripheral surface of the ball seat 511 is connected to the inner peripheral wall of the connecting arm seat 531, and the inner peripheral wall of the ball seat 511 is slidably connected to the swing ball 522, thereby providing stable swing support for the swing ball 522. The concave structure of the second oil reservoir 513 can store lubricating oil, reducing the sliding friction between the swing ball 522 and the inner peripheral wall of the ball seat 511, avoiding swing obstruction or component wear due to excessive friction, and achieving the effect of ensuring the smooth swing of the swing ball 522 and extending the service life of the component. The swing arm unit 52 also includes a relief part 523. The relief part 523 is concave from the end of the swing ball 522 away from the swing arm body 521 toward the swing arm body 521, thereby ensuring that the second oil reservoir 513 has a larger oil storage space, and thus ensuring the smooth swing between the swing ball 522 and the ball seat unit 51.

[0107] The first setting state also includes at least a portion of the clearance part 523 being disposed within the space enclosed by the inner peripheral wall of the ball seat body 511. This allows the inner peripheral wall of the ball seat body 511 to enclose the clearance part 523. Simultaneously, in conjunction with the tilting operation of the swing arm 50, the second oil reservoir 513 can cover the spherical surface of the swing ball 522, ensuring that the lubricating oil can fully act on the contact area between the swing ball 522 and the ball seat body 511, further reducing sliding friction and ensuring the stability and smoothness of the swing ball 522 during swing. This provides a good swing foundation for the subsequent swing measurement assembly 40 to drive the swing rod unit 52 to swing and accurately acquire the first and second swing data, thereby improving the accuracy of the swing detection data. At the same time, through the clearance part 523, the contact area between the swing ball 522 and the ball seat body 511 is reduced in the first setting state, further reducing the friction between the swing ball 522 and the ball seat body 511, resulting in less friction when acquiring the first swing data, and thus improving the accuracy of the acquired first swing data.

[0108] In other embodiments, such as Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the connecting arm unit 53 may further include a first connecting arm 533 and a second connecting arm 534; one end of the first connecting arm 533 is connected to the connecting arm seat 531, and the other end extends away from the connecting arm seat 531. One end of the second connecting arm 534 is connected to the connecting arm seat 531, and the other end extends away from the first connecting arm 533. The first connecting arm 533 and the second connecting arm 534 are respectively spaced apart from the rivet ring 532. After the swing arm 50 is assembled with the vehicle, the connecting arm seat 531 can be slidably connected to the vehicle body through the first connecting arm 533 and the second connecting arm 534 respectively. The movable seat unit 11 includes a movable seat body 111, a first positioning part 112, a second positioning part 113, and a third positioning part 114. The first positioning part 112, the second positioning part 113, and the third positioning part 114 are respectively connected to the movable seat body 111. The first positioning part 112 is used to position and clamp the connecting arm seat 531, the second positioning part 113 is used to position and clamp the first connecting arm 533, and the third positioning part 114 is used to position and clamp the second connecting arm 534, thereby maintaining the stability of the swing arm 50 during the rotation detection process and improving the accuracy of the detection results. The yaw unit 12 includes a first driving part 121, a second driving part 122, and a third driving part 123. The first driving part 121, the second driving part 122, and the third driving part 123 can be drivenly connected to the movable seat body 111. The first driving unit 121 is disposed adjacent to the first positioning unit 112, the second driving unit 122 is disposed adjacent to the second positioning unit 113, and the third driving unit 123 is disposed adjacent to the third positioning unit 114. This allows the positions of the first positioning unit 112, the second positioning unit 113, and the third positioning unit 114 to be controlled according to a predetermined program during the rotation detection of the swing arm 50, thereby changing the position of the central axis of the riveting ring 532. The ring measuring assembly 30 includes a first driving unit 31, which includes a vertical displacement unit 311 and a rotating unit 312. The clamping unit 32 includes a clamping seat 321, a fifth driving unit, and multiple clamping heads 322. The clamping seat 321 is drivenly connected to the rotating unit 312 and the vertical displacement unit 311, respectively. The clamping seat 321 can move along the central axis of the clamping seat 321 and can also rotate around the central axis of the clamping seat 321. The clamping heads 322 are movably connected to the clamping seat 321. The fifth driving unit is drivenly connected to the clamping heads 322. The clamping head 322 can move towards or away from the central axis of the clamping seat 321. The clamping seat 321 is slidably connected to the ring measuring head 33. The clamping head 322 can be sleeved on the outer periphery of the swing rod body 521 under the drive of the vertical displacement part 311 and the rotating part 312, and then the driving part drives the clamping head 322 to clamp the outer periphery of the swing rod body 521. The swing measuring assembly 40 also includes a second driving unit 41, which includes a first translation part 411 and a second translation part 412. The first translation part 411 and the second translation part 412 are movably connected. The second translation unit is connected to the swing measuring unit 42, and the second translation unit can adjust the position of the swing measuring unit 42, thereby better testing the swing rod unit 52.The swing testing unit 42 includes a swing testing base 421, a swing testing claw 422, and a sixth drive unit 423. The swing testing base 421 is connected to the second translation unit 412. One end of the swing testing claw 422 is connected to the swing testing base 421, and the other end extends toward the movable seat unit 11. The sixth drive unit 423 can drive the swing testing claw 422 to grasp the swing arm unit 52 for testing. The swing arm 50 swing detection system also includes a ring pressing assembly 20, which includes a clamping ring 21 and a fourth drive unit 22. The fourth drive unit 22 can be connected to the movable seat 111; the fourth drive unit 22 can be driven to connect with the clamping ring 21. After the movable seat unit 11 positions and clamps the connecting arm unit 53, the fourth drive unit 22 can drive the clamping ring 21 to move to abut against the side of the swing arm body 521 away from the movable seat body 111, so that the clamping ring 21 applies a force to the swing arm body 521 in the direction of the movable seat unit 11, so that the movable seat unit 11 and the clamping ring 21 jointly position and clamp the connecting arm unit 53.

[0109] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A method for detecting the swing arm oscillation, characterized in that, The swing arm swing detection method includes: Triggered by a swing arm swing detection command, the swing arm is moved onto the movable seat assembly to reach an initial state; wherein, the initial state includes the swing arm being positioned and clamped on the movable seat assembly; The pendulum assembly clamps one end of the pendulum rod unit of the pendulum arm; The pendulum testing component drives the pendulum unit to swing relative to the connecting arm unit of the pendulum arm, and acquires first swing data and second swing data; Based on the first swing data and the second swing data, the swing detection result of the swing arm is obtained; wherein, the first swing data detects the starting torque of the swing arm and the second swing data detects the motion torque of the swing arm; The swing arm includes a swing rod unit and a connecting arm unit; the swing rod unit includes a swing rod body and a swing ball; the swing rod body is connected to the swing ball; the connecting arm unit includes a connecting arm seat and a riveting ring; the connecting arm seat is configured as a housing with one open end; the riveting ring is connected to the connecting arm seat; the riveting ring is located at the open end of the connecting arm seat; the swing ball is located within the enclosing space of the connecting arm seat and the riveting ring; the swing rod body passes through the enclosing space of the inner peripheral wall of the riveting ring; The pendulum assembly that holds the pendulum arm includes one end of the pendulum rod unit: The ring-mounted assembly clamps the swing arm unit; The movable seat assembly adjusts the swing arm to a first set state; wherein, the first set state includes the swing arm swinging relative to the rivet ring, such that the minimum distance between the set protrusion position of the rivet ring and the minimum distance between the swing arm and the swing arm in the radial direction of the swing arm is less than or equal to a first set distance; the set protrusion position includes the position where the distance between one axial end of the rivet ring and the ring measuring assembly along the axial direction of the rivet ring is the minimum. The space surrounded by the ring measurement component is moved to a position that is spaced apart from the swing arm unit; The pendulum assembly clamps the outer periphery of the pendulum rod.

2. The swing arm oscillation detection method according to claim 1, characterized in that, The ring test assembly includes a clamping unit and a ring test head; the clamping unit is slidably connected to the ring test head; The movable seat assembly adjusts the swing arm to the first preset state by: The movable seat assembly adjusts the swing arm to a second set state; wherein, the second set state includes the axial direction of the rivet ring of the swing arm being parallel to the axial direction of the ring measuring head of the ring measuring assembly; The ring probe moves to abut against one axial end of the riveting ring; The ring probe rotates around the central axis of the rivet ring by a first set angle to obtain the set protrusion position; wherein, the first set angle is greater than or equal to 360°, and the set protrusion position includes the position where the distance between one axial end of the rivet ring and the clamping unit along the axial direction of the rivet ring is the smallest; The clamping unit clamps one end of the swing arm's swing rod unit; The movable seat assembly moves the set protrusion position of the rivet ring toward the swing arm body closer to the swing arm unit to a first set state.

3. The swing arm oscillation detection method according to claim 2, characterized in that, The swing arm further includes a ball seat unit; the ball seat unit includes a ball seat body and a second oil storage cavity; the ball seat body is configured as a shell with one end open; the second oil storage cavity is recessed from the bottom end of the opening of the ball seat body toward a direction away from the opening of the ball seat body; the ball seat body is disposed within the space enclosed by the connecting arm seat and the riveting ring; the outer peripheral surface of the ball seat body is connected to the inner peripheral wall of the connecting arm seat; the inner peripheral wall of the ball seat body is slidably connected to the swing ball; The swing arm unit also includes a clearance portion; the clearance portion is recessed from the end of the swing ball away from the swing arm body toward the swing arm body; The first setting state also includes at least a portion of the avoidance portion being disposed within the surrounding space of the inner peripheral wall of the ball seat.

4. The swing arm oscillation detection method according to claim 1, characterized in that, The pendulum assembly drives the pendulum unit to swing relative to the connecting arm unit of the pendulum arm, and acquires first swing data and second swing data, including: The swing test component drives the swing arm unit to move toward a set position and acquires first swing data; wherein, the set position is the symmetrical position of the swing arm unit along the radial direction of the riveting ring when the first set state is reached, and the first swing data is the starting torque of the swing arm unit from rest to the relative swing of the swing arm unit and the connecting arm unit; The pendulum testing component continues to drive the pendulum unit to move and acquire the second swing data.

5. The swing arm oscillation detection method according to claim 4, characterized in that, The pendulum testing component continues to drive the pendulum unit to move and acquires the second swing data, including: The pendulum assembly drives the pendulum unit to move to the set position; The pendulum component drives the pendulum unit to move toward the position of the pendulum unit in the first preset state; Based on the fact that the pendulum unit moves a first set distance closer to the ring measuring component, second swing data is obtained; wherein, the second swing data includes the minimum driving force data of the pendulum measuring component during the process from the pendulum unit moving the first set distance closer to the ring measuring component to the pendulum unit moving to the first set state.

6. The swing arm oscillation detection method according to claim 2, characterized in that, The movable seat assembly adjusts the swing arm to the second preset state by: The ring-mounted component drives the pendulum body to rotate around its own axis; Based on the ring measuring component driving the pendulum body to rotate around its own axis by a second set angle, the movable seat component adjusts the pendulum arm to a second set state.

7. A swing arm swing detection system, characterized in that, The swing arm swing detection system is applied to a swing arm swing detection method according to any one of claims 1-6; the swing arm swing detection system includes: The swing arm includes a swing rod unit and a connecting arm unit; one end of the swing rod unit is slidably connected to the connecting arm unit, and the other end extends away from the connecting arm unit. A movable seat assembly is used to fix the connecting arm unit; A pendulum assembly is used to drive the pendulum unit to swing relative to the connecting arm unit; The detection states of the swing arm rotation detection system include: the movable seat assembly fixing the connecting arm unit, and the swing test assembly driving the swing arm unit to swing to obtain first swing data and second swing data.

8. The swing arm oscillation detection system according to claim 7, characterized in that, The swing arm unit includes a swing arm body and a swing ball; the swing arm body is connected to the swing ball; the connecting arm unit includes a connecting arm seat and a riveting ring; the connecting arm seat is a housing with one open end; the riveting ring is connected to the connecting arm seat; the riveting ring is located at the open end of the connecting arm seat; the swing ball is located within the enclosing space of the connecting arm seat and the riveting ring; the swing arm body passes through the enclosing space of the inner peripheral wall of the riveting ring; The movable seat assembly includes a movable seat unit and a tilting unit; the tilting unit is driven to be connected to the movable seat unit; the movable seat unit is used to fix the connecting arm seat; The pendulum testing assembly includes a clamping unit and a ring probe; the clamping unit is slidably connected to the ring probe; the clamping unit is used to drive the pendulum body to rotate around its own axis; The ring probe is used to detect the rivet ring; The adjustment states of the swing arm rotation detection system include: the movable seat unit fixes the connecting arm unit; after the ring probe abuts against one axial end of the rivet ring, it rotates around the central axis of the rivet ring by a first set angle and obtains a set protrusion position; subsequently, the sway unit adjusts the swing arm to a first set state through the movable seat unit; wherein, the first set state includes a minimum distance between the set protrusion position of the rivet ring and the minimum distance between the swing arm body in the radial direction of the swing arm body and a first set distance; the set protrusion position includes the position where the minimum distance between one axial end of the rivet ring and the clamping unit along the axial direction of the rivet ring is the smallest; and the first set angle is greater than or equal to 360°.

9. The swing arm oscillation detection system according to claim 8, characterized in that, The swing arm further includes a ball seat unit; the ball seat unit includes a ball seat body and a second oil storage cavity; the ball seat body is configured as a shell with one end open; the second oil storage cavity is recessed from the bottom end of the opening of the ball seat body toward a direction away from the opening of the ball seat body; the ball seat body is disposed within the space enclosed by the connecting arm seat and the riveting ring; the outer peripheral surface of the ball seat body is connected to the inner peripheral wall of the connecting arm seat; the inner peripheral wall of the ball seat body is slidably connected to the swing ball; The swing arm unit also includes a clearance portion; the clearance portion is recessed from the end of the swing ball away from the swing arm body toward the swing arm body; The first setting state also includes at least a portion of the avoidance portion being disposed within the surrounding space of the inner peripheral wall of the ball seat.

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