Equipment for testing the sway torque of automotive steering tie rods and equipment for assembling automotive steering tie rods.

Abstract

This invention discloses a testing device for the swing torque of a car steering tie rod and an assembly device for the car steering tie rod. The testing device includes a testing unit, a clamping unit, and a fixing unit. The fixing unit includes a fixing mechanism, a lifting mechanism, a limiting mechanism, and a floating mechanism. The bottom of the housing is housed in the fixing mechanism. The lifting mechanism includes a body and a drive rod extending outward from the body. The top of the drive rod is used to abut against the bottom of the fixing mechanism. The body is connected to the bottom of the floating mechanism. The limiting mechanism is used to limit the lifting height of the drive rod. After the drive rod is limited by the limiting mechanism, the floating mechanism is driven by the body to move downward and contact the upper part of the tie rod housing. The fixing mechanism and the floating mechanism work together to fix the housing.

Description

Technical Field

[0001] Specifically, this invention relates to a device for detecting the swing torque of a car steering tie rod and an assembly device for a car steering tie rod including the device. Background Technology

[0002] The tie rod is one of the most critical actuators in a car's steering system. Its core function is to transmit the power of the steering gear to the steering wheels and directly control the steering angle of the wheels, thereby allowing the car to turn according to the driver's intention.

[0003] During the assembly of the tie rod, it is crucial to detect the swing torque of the tie rod. However, current technologies can only achieve offline detection and manual assembly, resulting in low detection efficiency, insufficient accuracy, and low adaptability and automation of the equipment.

[0004] For example, patent CN118243273A, "Equipment and Method for Detecting the Swinging Torque of Automotive Steering Tie Rods," discloses an equipment for detecting the swinging torque of automotive steering tie rods. This equipment includes a clamping positioning mechanism for holding the upper end of the automotive steering tie rod, a cylinder pressing mechanism for holding the lower end of the automotive steering tie rod, and a detection device including a torque sensor. However, it can only achieve offline detection, and the tie rod is fixed in place. The swinging angle and speed are adjusted by a servo motor, resulting in insufficient measurement accuracy and a low degree of automation.

[0005] For example, patent CN105823513A describes a device for detecting the starting torque, swing torque, and swing angle of a ball pin pull rod. This device can only perform offline detection. Although it also uses a fixed pull rod, it rotates the ball pin through a ball seat fixing plate using a servo motor. The measurement accuracy is insufficient and the degree of automation is not high.

[0006] The above background information is provided only to aid in understanding the inventive concept and technical solution of this invention. It does not necessarily belong to the prior art of this invention. In the absence of clear evidence that the above information was disclosed before the filing date of this invention, the above background information should not be used to evaluate the novelty and inventiveness of this invention. Summary of the Invention

[0007] In view of this, in order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a detection device for the swing torque of automotive steering tie rods, which can realize the fixed housing, swing of the rod, fully automated detection, high efficiency and high accuracy.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A device for detecting the swing torque of a steering tie rod in an automobile, the tie rod comprising a rod, a ball joint at the end of the rod, and a housing enclosing the ball joint, the detection device comprising a detection device for detecting the swing torque, a clamping device for clamping the rod and causing it to swing, and a fixing device for fixing the housing, the fixing device comprising a fixing mechanism, a lifting mechanism, a limiting mechanism, and a floating mechanism, the bottom of the housing being housed in the fixing mechanism, the lifting mechanism comprising a body and a drive rod extending outward from the body, the top of the drive rod being used to abut against the bottom of the fixing mechanism, the body being connected to the bottom of the floating mechanism, and the limiting mechanism being used to limit the lifting height of the drive rod; during detection, the fixing mechanism and the housing and ball joint within it are located between the top of the limiting mechanism and the floating mechanism; the floating mechanism is used to move downwards and contact the upper part of the housing of the tie rod after the drive rod is limited by the limiting mechanism, the fixing mechanism and the floating mechanism working together to fix the housing. After the housing is fixed, the axis of the drive rod, the center of the ball pin, and the axis of the rod coincide.

[0010] According to some preferred embodiments of the present invention, the clamping device includes a rotating plate, a clamping assembly fixed on the rotating plate, a connecting rod fixedly connected to the rotating plate, and a driving member for driving the connecting rod to rotate. The detection device is disposed on the connecting rod, the clamping assembly is used to clamp the rod, and the rotating plate drives the clamping assembly to swing in an arc. After the housing is fixed and during detection, the axis of the connecting rod, the center of the torque sensor, and the center of the ball pin are located on the same straight line.

[0011] Preferably, the driving component is a servo motor, and the detection device is a torque sensor. The torque sensor is positioned between the servo motor and the connecting rod. The end of the connecting rod near the rotating plate is supported by a bearing and a bearing housing, increasing the stability of rotation and testing. Meanwhile, a clamping assembly is located on the upper part of the rotating plate, and a weight is provided on the lower part of the rotating plate.

[0012] According to some preferred embodiments of the invention, the fixing mechanism includes a fixed base, a floating base located within the fixed base, and an adapter located within the floating base. The floating base is capable of floating vertically within the fixed base, and the lower part of the housing of the crossbar is inserted into the adapter. The adapter can be quickly replaced and adapted according to the shape of the housing.

[0013] According to some preferred embodiments of the present invention, the limiting mechanism includes a limiting rod with a through hole, the end of the driving rod passing through the through hole and abutting against the floating seat. The end of the limiting rod is fixed after passing through the floating mechanism.

[0014] According to some preferred embodiments of the present invention, the end of the drive rod is provided with a lifting head, the lifting head including a contact portion and a stepped portion. The contact portion is used to pass through the through hole and contact the bottom of the floating seat. The stepped portion extends outward from the bottom of the contact portion and cooperates with the limiting rod to limit the lifting height of the lifting head. The lifting height of the lifting head is controlled by the cooperation and blocking of the limiting rod and the stepped portion.

[0015] According to some preferred embodiments of the present invention, the floating mechanism includes a base plate, a vertical plate, and a top plate. The base plate is fixed to the body of the lifting mechanism, and the vertical plate is connected between the base plate and the top plate. An adapter block adapted to the upper part of the crossbar housing is fixed on the top plate. Vertical elongated holes are provided on both sides of the vertical plate, through which the ends of the limiting rods protrude. When the floating mechanism moves, the limiting rods move within the elongated holes. The adapter block is adapted to the upper part of the housing and has a swing groove to avoid interference with the swing of the rods.

[0016] According to some preferred embodiments of the invention, the testing device includes a fixed stage, a frame, and a horizontal actuator for driving the frame to move horizontally relative to the fixed stage. The clamping device, limiting mechanism, and floating mechanism are disposed on the frame. After the horizontal actuator moves the tie rod into position (the center of the ball pin is located on the axis of the drive rod), it drives the frame and the devices thereon to a position that mates with the workpiece. Then, the clamping assembly clamps the rod, the fixing device secures the housing, and then the drive is activated, causing the rotating plate, clamping assembly, and rod to swing.

[0017] According to some preferred embodiments of the present invention, the frame is provided with a connecting plate and a vertically extending guide rail, the connecting plate moving vertically on the vertical guide rail, and the floating mechanism fixed to the connecting plate. When the drive rod is height-limited by the cooperation of the lifting head and the limiting rod, the floating mechanism and the connecting plate move vertically downward along the guide rail under the action of the main body.

[0018] According to some preferred embodiments of the present invention, a reset drive is provided on the frame, the reset drive being used to drive the floating mechanism to reset. After a workpiece inspection is completed, the reset drive drives the floating mechanism to move upward and disengage from the upper part of the housing, while simultaneously, the drive rod of the lifting mechanism retracts and disengages from the lower part of the fixing mechanism.

[0019] The present invention also provides an assembly device for an automotive steering tie rod including the detection device described above, which can realize online detection of the swing torque of the automotive steering tie rod.

[0020] Compared with the prior art, the advantages of the present invention are as follows: The device for detecting the swing torque of the steering tie rod of the present invention fixes the tie rod through a fixing mechanism, which is simple to assemble. The housing is clamped by the lifting mechanism and the floating mechanism in cooperation with the fixing mechanism. The clamping device realizes the clamping of the rod, thereby realizing the detection of the swing torque with the housing fixed. At the same time, it has a high degree of automation and can realize online and automated detection of swing torque, with high efficiency and high accuracy. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the detection device in an embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the detection device in an embodiment of the present invention from another perspective;

[0024] Figure 3 This is a three-dimensional structural diagram of the detection device after some components are hidden in an embodiment of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the tie rod assembled in the fixing mechanism in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the tie rod assembled in the fixing mechanism in an embodiment of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the adapter block in an embodiment of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the adapter block from another perspective in an embodiment of the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of the lifting head in an embodiment of the present invention;

[0030] In the attached diagram, the components are: fixed platform-1, frame-2, horizontal actuator-31, horizontal guide rail-32, clamping device-4, rotating plate-41, clamping assembly-42, connecting rod-43, driving component-44, bearing seat-45, weight-46, fixing mechanism-5, fixed base-51, floating base-52, adapter-53, sliding groove-54, sliding pin-55, lifting mechanism-6, body-61, driving rod-62. Lifting head-63, Contact part-64, Step part-65, Limiting mechanism-7, Limiting rod-71, Fixing plate-72, Floating mechanism-8, Base plate-81, Vertical plate-82, Top plate-83, Adapter block-84, Vertical guide rail-85, Reset drive component-86, Connecting plate-87, Cavity-88, Swing groove-89, Horizontal tie rod-9, Rod-91, Ball pin-92, Housing-93, Detection device-10. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0032] like Figure 4 and Figure 5 As shown, the automotive steering tie rod 9 includes a rod 91, a ball pin 92 located at the end of the rod 91, and a housing 93 enclosing the ball pin 92. When the rod 91 swings, the ball pin 92 swings within the housing 93.

[0033] like Figures 1 to 8 As shown, the assembly equipment for the automotive steering tie rod 9 in this embodiment includes a device for detecting the swing torque of the tie rod 9. This device can perform online detection of the swing torque in the assembly line of the automotive steering tie rod 9 without offline detection; however, offline detection can also be performed as needed.

[0034] Specifically, the testing equipment for the swing torque of the tie rod 9 in an automobile steering column includes a fixed platform 1, a frame 2 mounted on the fixed platform 1, a horizontal guide rail 32 and a horizontal actuator 31 for driving the frame 2 to move horizontally relative to the fixed platform 1, and a testing device 10, a clamping device 4, and a fixing device mounted on the frame 2. The testing device 10 is used to detect the swing torque, the clamping device 4 is used to clamp the rod 91 and drive it to swing, and the fixing device is used to fix the housing 93. That is, after the tie rod 9 (workpiece) is moved into position, the fixing device fixes the housing 93, the clamping device 4 clamps the rod 91 and drives it to swing, and the testing device 10 is mounted on the clamping device 4 to measure the torque during the swing of the rod 91. The specific structure of each device is described in detail below:

[0035] 1) Clamping device 4

[0036] The clamping device 4 includes a rotating plate 41, a clamping assembly 42 and a weight 46 fixed on the rotating plate 41, a connecting rod 43 fixedly connected to the rotating plate 41, and a driving component 44 for driving the connecting rod 43 to rotate. The clamping assembly 42 is used to clamp the rod 91. The clamping assembly 42 is located on the upper part of the rotating plate 41, the weight 46 is located on the lower part of the rotating plate 41, and the connecting rod 43 is connected to the center position of the rotating plate 41. The detection device 10 is located between the driving component 44 and the connecting rod 43. In this embodiment, the driving component 44 is a servo motor, and the end of the connecting rod 43 near the rotating plate 41 is supported by a bearing and a bearing seat 45 to increase the stability of rotation and testing. The clamping assembly 42 is a gripper used to clamp the rod 91. The rotating plate 41 drives the clamping assembly 42 to swing in an arc.

[0037] 2) Detection device 10

[0038] In this embodiment, the detection device 10 is a torque sensor, which is set between the servo motor and the connecting rod 43 to test the torque when the rod 91 of the tie rod 9 swings.

[0039] After the housing 93 is fixed by the fixing device and during testing, the axis of the connecting rod 43, the center of the torque sensor, and the center of the ball pin 92 are on the same straight line.

[0040] 3) Fixing device

[0041] The fixing device in this embodiment includes a fixing mechanism 5, a lifting mechanism 6, a limiting mechanism 7, and a floating mechanism 8. Before entering the testing equipment for testing, the bottom of the crossbar 9 housing 93 is fixed in the fixing mechanism 5, and then it enters the testing equipment for testing. Preferably, the fixing mechanism 5 is fixed to a push plate, and the push plate drives it to enter or exit the testing equipment.

[0042] Specifically, the fixing mechanism 5 includes a fixed base 51, a floating base 52 located within the fixed base 51, and an adapter 53 located within the floating base 52. The floating base 52 can float vertically within the fixed base 51, and the lower part of the housing 93 of the horizontal tie rod 9 is inserted into the adapter 53. The adapter 53 can be quickly replaced and adapted according to the shape of the housing 93, and the bottom of the adapter 53 is supported by the stepped surface inside the floating base 52.

[0043] In this embodiment, in order to limit the moving direction and distance of the floating seat 52, a sliding groove 54 is provided on the fixed seat 51, and a sliding pin 55 is provided on the floating seat 52. The sliding pin 55 is accommodated in the sliding groove 54 to guide and restrict the movement of the floating seat 52.

[0044] The lifting mechanism 6 includes a body 61, a drive rod 62 extending outward from the body 61, and a lifting head 63 fixed to the top of the drive rod 62. The top of the lifting head 63 is used to abut against the bottom of the fixing mechanism 5. The body 61 is connected to the bottom of the floating mechanism 8. The limiting mechanism 7 is used to limit the lifting height of the drive rod 62. After the drive rod 62 is limited by the limiting mechanism, the floating mechanism 8 is driven by the body 61 to move downward and contact the upper part of the housing 93 of the tie rod 9. The fixing mechanism 5 and the floating mechanism 8 work together to fix the housing 93. After the housing 93 is fixed, the axis of the drive rod 62, the center of the ball pin 92, and the axis of the rod 91 coincide.

[0045] The limiting mechanism 7 includes a limiting rod 71 with a through hole. The end of the driving rod 62 passes through the through hole and abuts against the floating seat 52. In this embodiment, a fixing plate 72 is provided on the frame 2 corresponding to the end of the limiting rod 71. The end of the limiting rod 71 passes through the floating mechanism 8 and is fixed to the fixing plate 72.

[0046] The lifting head 63 includes a contact portion 64 and a stepped portion 65. The contact portion 64 passes through the through hole and contacts the bottom of the floating seat 52. The stepped portion 65 extends outward from the bottom of the contact portion 64 and cooperates with the limiting rod 71 to limit the lifting height of the lifting head 63. The lifting height of the lifting head 63 is controlled by the cooperation and blocking of the limiting rod 71 and the stepped portion 65.

[0047] The floating mechanism 8 includes a base plate 81, a vertical plate 82, and a top plate 83. The base plate 81 is fixed to the body 61 of the lifting mechanism 6. The vertical plate 82 is connected between the base plate 81 and the top plate 83. An adapter block 84, which is adapted to the upper part of the housing 93 of the horizontal tie rod 9, is fixed on the top plate 83. Vertical elongated holes are opened on both sides of the vertical plate 82. The end of the limiting rod 71 passes through the elongated holes. When the floating mechanism 8 moves, the limiting rod 71 moves in the elongated holes. The adapter block 84 has a cavity 88 adapted to the upper part of the housing 93. It is made according to the upper curved surface of the housing 93. During the clamping of the workpiece, it can correct the center position of the workpiece and ensure the stability of the detection. The adapter block 84 also has a swing groove 89 to avoid interference with the swing of the rod 91.

[0048] After the horizontal actuator 31 moves the horizontal tie rod 9 into place (the center of the ball pin 92 is located on the axis of the drive rod 62), the drive frame 2 and the device on it move to the position that mates with the workpiece. Then, the clamping assembly 42 clamps the rod 91, the fixing device fixes the housing 93, and then the drive component 44 starts, causing the rotating plate 41, the clamping assembly 42 and the rod 91 to swing.

[0049] The frame 2 is equipped with a connecting plate 87, a vertically extending vertical guide rail 85, and a reset drive component 86. The connecting plate 87 moves vertically on the vertical guide rail 85, and the floating mechanism 8 is fixed to the connecting plate 87. After the drive rod 62 is height-limited by the cooperation of the lifting head 63 and the limiting rod 71, the floating mechanism 8 and the connecting plate 87 move vertically downward along the vertical guide rail 85 under the continuous action of the body 61. The reset drive component 86 is used to drive the floating mechanism 8 to move upward and disengage from the upper part of the housing 93 after a workpiece inspection is completed. At the same time, the drive rod 62 of the lifting mechanism 6 retracts and disengages from the lower part of the fixing mechanism 5.

[0050] The following is a brief description of the working process of the device for detecting the swing torque of the car steering tie rod 9 in this embodiment:

[0051] The push plate drives the fixing mechanism 5 and the horizontal tie rod 9 inside the fixing mechanism 5 to move to the front of the clamping assembly 42.

[0052] The horizontal actuator 31 pushes the frame 2 toward the horizontal tie rod 9. When the axis of the drive rod 62 of the lifting mechanism 6 coincides with the center of the ball pin 92 of the horizontal tie rod 9, the lifting mechanism 6 starts to move. The drive rod 62 extends, and the top of the contact part 64 of the lifting head 63 passes through the through hole and contacts the floating seat 52 of the fixing mechanism 5. The lifting head 63 continues to move upward. When the center of the ball pin 92 coincides with the axis of the connecting rod 43 and the center of the torque sensor, the step part 65 of the lifting head 63 abuts against the lower part of the limit rod 71. At this time, the height of the lifting head 63, the floating seat 52, and the horizontal tie rod 9 is fixed.

[0053] The lifting mechanism 6 continues to output power, the drive rod 62 continues to extend, and the distance between the lifting head 63 and the body 61 continues to increase. Because the lifting head 63 is blocked by the limiting rod 71, the body 61 moves downwards. Since the bottom plate 81 of the floating mechanism 8 is fixed to the body 61, the floating mechanism 8 moves downwards as a whole. The adapter block 84 on the top plate 83 moves downwards until it contacts the upper arc surface of the housing 93 of the horizontal tie rod 9. Under the clamping of the upper adapter block 84 and the lower fixing mechanism 5, the housing 93 automatically returns to its correct position and is securely fixed.

[0054] Then the grippers close, holding the rod 91 in place. The drive unit 44 starts, driving the connecting rod 43 to rotate, which in turn drives the rotating plate 41 to rotate, realizing the left and right swing of the rod 91. The torque sensor collects the torque data during the swing process, realizing the measurement of the swing torque of the rod 91.

[0055] The device for detecting the swing torque of the automotive steering tie rod 9 of the present invention has the following advantages:

[0056] 1. The equipment has simple operation and fast cycle time: the detection time of oscillation is eliminated, and the operation time is only 4.5 seconds, which is more suitable for high cycle time requirements;

[0057] 2. Compact structure: For the clamping of the housing 93, the ball center alignment of the ball pin 92 is completed by a set of cylinders (lifting mechanism 6) in conjunction with the mechanical structure. The clamping is reliable and stable, and plays a role in aligning the housing 93 during the clamping process. The compact structure is more suitable for integration into automated equipment.

[0058] 3. Protection of the coating of rod 91: During the swinging process of rod 91 driven by the gripper, the gripper swings along the arc and there is no relative movement between the gripper and rod 91. This minimizes the damage to the coating of rod 91 caused by the gripper during the operation and prevents rust and corrosion caused by the damage to the coating of rod 91 in the later stage.

[0059] 4. Direct detection data: The torque sensor and the connecting rod 43 are directly connected, which can more directly detect the torque change of the rod 91 and reduce the impact of transmission error of the mechanism.

[0060] 5. Factors affecting the center of gravity of the mechanism: To address the issue of self-torque caused by the weight of the gripper, weight block 46 was used to reduce the self-torque eccentricity of the mechanism, making subsequent data processing simpler.

[0061] 6. High flexibility and wide applicability: For different products, only the adapter 53 at the bottom of the corresponding housing 93 and the adapter block 84 at the top of the corresponding housing 93 need to be replaced, making it widely applicable.

[0062] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for detecting the oscillation moment of a steering tie rod for a vehicle, said tie rod comprising a rod, a ball stud at the end of said rod and a housing surrounding said ball stud, characterized in that: The detection device comprises a detection apparatus for detecting the swing torque, a clamping apparatus for clamping the rod member and swinging the rod member, and a fixing apparatus for fixing the shell, the fixing apparatus comprises a fixing mechanism, a lifting mechanism, a limiting mechanism and a floating mechanism, the bottom of the shell is accommodated in the fixing mechanism, the lifting mechanism comprises a body and a driving rod outwardly extending from the body, the top of the driving rod is used for abutting against the bottom of the fixing mechanism, the body is connected with the bottom of the floating mechanism, the limiting mechanism is used for limiting the lifting height of the driving rod, and the floating mechanism is used for moving downward with the body and contacting the upper part of the shell of the tie rod after the driving rod is limited by the limiting mechanism, and the fixing mechanism and the floating mechanism jointly fix the shell; The clamping apparatus comprises a rotating plate, a clamping assembly fixed on the rotating plate, a connecting rod fixedly connected with the rotating plate, and a driving member for driving the connecting rod to rotate, the detection apparatus is arranged on the connecting rod, the clamping assembly is used for clamping the rod member, and the rotating plate drives the clamping assembly to swing in an arc shape. The fixing mechanism comprises a fixing seat, a floating seat located in the fixing seat, and an adapter located in the floating seat, the floating seat can float in the fixing seat in the vertical direction, and the lower part of the shell of the tie rod is inserted into the adapter.

2. The detection device of claim 1, wherein: The limiting mechanism comprises a limiting rod, a through hole is formed in the limiting rod, and the end of the driving rod passes through the through hole and is used for abutting against the floating seat.

3. The detection device of claim 2, wherein: The end of the driving rod is provided with a lifting head, the lifting head comprises a contact portion and a step portion, the contact portion is used for passing through the through hole and contacting the bottom of the floating seat, and the step portion extends outward from the bottom of the contact portion and cooperates with the limiting rod to limit the lifting height of the lifting head.

4. The detection device of claim 1, wherein: The floating mechanism comprises a bottom plate, a vertical plate and a top plate, the bottom plate is fixed with the body of the lifting mechanism, the vertical plate is connected between the bottom plate and the top plate, and the top plate is fixed with an adapter block matched with the upper part of the shell of the tie rod.

5. The detection device according to any one of claims 1 to 4, characterized in that: The detection device comprises a fixing table, a frame and a horizontal driver for driving the frame to move horizontally relative to the fixing table, and the clamping apparatus, the limiting mechanism and the floating mechanism are arranged on the frame.

6. The detection device of claim 5, wherein: The frame is provided with a connecting plate and a vertical guide rail extending in the vertical direction, the connecting plate moves vertically on the vertical guide rail, and the floating mechanism is fixed on the connecting plate.

7. The detection device of claim 6, wherein: The frame is provided with a reset driving member, and the reset driving member is used for driving the floating mechanism to reset.

8. An apparatus for assembling an automobile tie rod, characterized by: The detection device comprises the detection device according to any one of claims 1-7, and is used for on-line detection of the swing torque of the tie rod of the automobile steering.

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