Control arm installation method and system

Abstract

The present invention relates to the technical field of control arm installation, and in particular, to a control arm installation method and system. Based on the completion of positioning of the first connecting rod and the second connecting rod on the slide assembly, the first nut is screwed into the first connecting rod to the first screw-in position, and the second nut is screwed into the second connecting rod to the second screw-in position, and the two ends of the third connecting rod are driven to be threadedly connected with the first connecting rod and the second connecting rod respectively. Based on the first connecting rod and the second connecting rod reaching a first set distance at one end close to the third connecting rod, the third connecting rod is driven to continue to be screwed in until the third tightening fork opens upward, and the third tightening unit stops being screwed in. Based on the third tightening unit stopping being screwed in and the third tightening fork opening upward, the first nut and the second nut move in the direction close to the third connecting rod until they abut against the third connecting rod. Based on the first nut and the second nut moving in the direction close to the third connecting rod until they abut against the third connecting rod, the third tightening unit drops to the first height. In this way, the problem of the control arm being difficult to install is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of control arm installation, and in particular to a control arm installation method and system. Background Art

[0002] With the development of vehicle manufacturing technology, the requirements for vehicle control arms are getting higher and higher. Vehicle control arms are an important part of the vehicle. The two ends of the control arm are connected to the wheel and the body respectively. The control arm can be used to control the movement of the wheel, thereby controlling the operation of the vehicle, which plays a vital role in ensuring the safety and stability of the vehicle.

[0003] During the installation of the control arm assembly, the first link and the second link need to be threadedly connected to the two ends of the third link respectively, and the length of the abutting portion of the first link, the second link and the third link is controlled to control the length of the control arm assembly. However, during the installation of the control arm assembly, the installation process is relatively difficult due to the high precision requirements of the control arm assembly. Summary of the invention

[0004] In order to solve the problem that a control arm is difficult to install, the present invention provides a control arm installation method and system.

[0005] In a first aspect, the present invention provides a control arm installation method, the control arm installation method comprising:

[0006] Step S10, based on the first connecting rod and the second connecting rod being positioned on the slide assembly, screwing the first nut into the first connecting rod to a first screw-in position, and screwing the second nut into the second connecting rod to a second screw-in position;

[0007] Step S20, based on the first nut being screwed into the first connecting rod to the first screwed-in position, the second nut being screwed into the second connecting rod to the second screwed-in position, driving two ends of the third connecting rod to be threadedly connected to the first connecting rod and the second connecting rod respectively;

[0008] Step S30, based on the first connecting rod and the second connecting rod reaching the first set distance at one end close to the third connecting rod, the third connecting rod is driven to continue to be screwed in until the opening of the third tightening fork is upward, and the third tightening unit stops screwing in; wherein the screwing-in angle of the third tightening fork is less than 360°; A≥B, A is the tolerance of the first set distance, and B is the pitch of the third connecting rod;

[0009] Step S40, based on the third tightening unit stopping screwing in and the third tightening fork opening upward, the first nut and the second nut are spirally moved in a direction close to the third connecting rod until they abut against the third connecting rod;

[0010] In step S50, the third tightening unit is lowered to a first height based on the first nut and the second nut being spirally moved toward the third connecting rod until they abut against the third connecting rod.

[0011] In some embodiments, step S10 includes:

[0012] Step S11, based on the first connecting rod and the second connecting rod being positioned on the slide assembly, the slide assembly moves to a set position; wherein the set position includes the first slide unit moving along the first track in a direction away from the second connecting rod to a first set position, and the second slide unit moving along the second track in a direction away from the first connecting rod to a second set position;

[0013] Step S12, based on the slide assembly moving to the set position, the tightening assembly switches to the first state; wherein the first state includes the first tightening unit rising to the second height, and the second tightening unit rising to the second height;

[0014] Step S13, based on the tightening assembly switching to the first state, placing a first nut on the first tightening unit and screwing the first connecting rod into a first screw-in position, placing a second nut on the second tightening unit and screwing the second connecting rod into a second screw-in position.

[0015] In some embodiments, step S20 includes:

[0016] Step S21, based on the first nut being screwed into the first connecting rod to the first screwed-in position, the second nut being screwed into the second connecting rod to the second screwed-in position, the first nut is screwed in continuously until the first tightening fork opens upward, and the second nut is screwed in continuously until the second tightening fork opens upward; wherein the rotation angle of the first tightening fork is less than 360°; and the rotation angle of the second tightening fork is less than 360°;

[0017] Step S22, based on the first nut being screwed in continuously until the first tightening fork opening is upward, and the second nut being screwed in continuously until the second tightening fork opening is upward, controlling the first tightening unit to descend to a first height, and the second tightening unit to descend to the first height;

[0018] Step S23, based on the first tightening unit descending to the first height and the second tightening unit descending to the first height, driving the third tightening unit to rise to the second height;

[0019] Step S24, based on the third tightening unit rising to the second height, placing the third connecting rod on the third tightening unit and driving both ends of the third connecting rod to be threadedly connected with the first connecting rod and the second connecting rod respectively.

[0020] In some embodiments, step S40 includes:

[0021] Step S41, based on the third tightening unit stopping screwing in and the third tightening fork opening upward, driving the first tightening unit and the second tightening unit to rise to the second height;

[0022] Step S42, based on the first tightening unit and the second tightening unit rising to the second height, the first tightening unit is driven to drive the first nut to move spirally toward the direction close to the third connecting rod until it abuts against the third connecting rod; the second tightening unit drives the second nut to move spirally toward the direction close to the third connecting rod until it abuts against the third connecting rod.

[0023] In some embodiments, the control arm installation method further includes:

[0024] Step S61, based on the third tightening unit descending to the first height, obtaining the opening directions of the first tightening fork and the second tightening fork;

[0025] Step S62: Based on the first tightening fork and the second tightening fork opening upward, the first tightening unit and the second tightening unit are driven to descend to the first height.

[0026] In some embodiments, the control arm installation method further includes:

[0027] Step S631, based on the fact that one of the first tightening fork and the second tightening fork is a tightening fork in the first state and the other tightening fork is a tightening fork in the second state, driving the tightening fork in the first state to descend to the first height; wherein the tightening fork in the first state is the tightening fork with the opening upwards among the first tightening fork and the second tightening fork in step S61, and the tightening fork in the second state is the tightening fork that forms a set angle with the tightening fork in the first state among the first tightening fork and the second tightening fork in step S61;

[0028] Step S632, based on the first state, the tightening fork is lowered to the first height, and the first positioning pin and the second positioning pin are removed;

[0029] Step S633, based on removing the first positioning pin and the second positioning pin, driving the second state tightening fork to drive the control arm assembly to rotate until the second state tightening fork opens upward;

[0030] Step S634: based on the other tightening fork opening upward, drive the other tightening fork to descend to the first height.

[0031] In some embodiments, the control arm installation method further includes:

[0032] Step S641, based on the first tightening fork and the third tightening fork forming a second set angle, and the second tightening fork and the third tightening fork forming a third set angle, remove the first positioning pin and the second positioning pin;

[0033] Step S642, based on removing the first positioning pin and the second positioning pin, driving the first tightening fork to drive the control arm assembly and the second tightening fork to rotate until the first tightening fork opens upward;

[0034] Step S643, based on the first tightening fork opening upward, driving the first tightening unit to descend to the first height;

[0035] Step S644, based on the first tightening unit descending to the first height, driving the second tightening fork to drive the control arm assembly to rotate until the second tightening fork opens upward;

[0036] Step S645: Based on the second tightening fork opening upward, drive the second tightening unit to descend to the first height.

[0037] In some embodiments, in step S20, the third tightening unit continues to be screwed in to form a fourth set angle with the vertical upward direction, and the third tightening fork is driven by inertia to continue to be screwed in until the opening of the third tightening fork is upward.

[0038] In a second aspect, the present invention provides a control arm installation system, the control arm installation system is applied to any one of the control arm installation methods described in the first aspect, the control arm installation system comprising:

[0039] Base;

[0040] A slide assembly, wherein the slide assembly comprises a first slide unit and a second slide unit; the first slide unit is detachably connected to the base, and the second slide unit is detachably connected to the base; the first slide unit comprises a first slide seat, a first positioning pin, a first support block, a first rail, and a first slider; the first slider is slidably connected to the first rail; the first slider is fixedly connected to the first slide seat; the first positioning pin is detachably connected to the first slide seat; the first support block is fixedly connected to the first slide seat; the second slide unit comprises a second slide seat, a second positioning pin, a second support block, a second rail, and a second slider; the second slider is slidably connected to the second rail; the second slider is fixedly connected to the second slide seat; the second positioning pin is detachably connected to the second slide seat; the second support block is fixedly connected to the second slide seat;

[0041] A control arm assembly, the control arm assembly includes a first connecting rod, a second connecting rod, a third connecting rod, a first nut, and a second nut; the control arm assembly includes a post-installation state, the post-installation state includes the outer peripheral wall of the first connecting rod near one end of the third connecting rod being threadedly connected to the inner peripheral wall of the third connecting rod; the outer peripheral wall of the second connecting rod near one end of the third connecting rod abuts against the inner peripheral wall of the third connecting rod; the first nut is sleeved on the outer peripheral wall of the first connecting rod and abuts against the third connecting rod near one end of the third connecting rod; the second nut is sleeved on the outer peripheral wall of the second connecting rod and abuts against the third connecting rod near one end of the third connecting rod; the first connecting rod includes a positioning sleeve, a first fixing rod, and a first screw, and the positioning sleeve, the first fixing rod, and the first screw are fixedly connected in sequence; the positioning sleeve is detachably connected to the first positioning pin; the first fixing rod abuts against the first support block; the first and second connecting rods include a positioning fork, a second fixing rod, and a second screw; the positioning fork, the second fixing rod, and the second screw are fixedly connected in sequence; the positioning fork is detachably connected to the second positioning pin, and the second fixing rod abuts against the second support block;

[0042] A tightening assembly, wherein the tightening assembly comprises a third tightening unit; the third tightening unit comprises a third tightening portion, a third tightening fork, a third movable portion, and a third driving portion; the third driving portion is detachably connected to the base, and the third movable portion is detachably connected to an end of the third driving portion away from the base; the third tightening portion is arranged in a hollow cavity of the third movable portion, and an end of the third tightening portion away from the third driving portion is recessed inward to form a third tightening fork;

[0043] Control component; the control component includes a control unit and a position sensor; the position sensor is arranged at one end of the first slide unit close to the second slide unit; the control unit is electrically connected to the position sensor.

[0044] In some embodiments, the tightening assembly also includes a first tightening unit and a second tightening unit; the first tightening unit includes a first tightening part, a first tightening fork, a first movable part, and a first driving part; the first driving part is detachably connected to the base; the end of the first driving part away from the base is detachably connected to the first movable part; the first tightening part is arranged in a hollow cavity of the first movable part, and the end of the first tightening part away from the first driving part is recessed inward to form a first tightening fork, and the second tightening unit includes a second tightening part, a second tightening fork, a second movable part, and a second driving part; the second driving part is detachably connected to the base; the end of the second driving part away from the base is detachably connected to the second movable part; the second tightening part is arranged in the hollow cavity of the second movable part, and the end of the second tightening part away from the second driving part is recessed inward to form a second tightening fork.

[0045] In order to solve the problem that the control arm is difficult to install, the present invention has the following advantages:

[0046] The first connecting rod and the second connecting rod can be placed on the slide assembly, and the first nut, the third connecting rod and the second nut can be installed by tightening the assembly, thereby ensuring the installation accuracy of the control arm assembly while ensuring the installation efficiency of the control arm assembly.

[0047] When the first link and the second link reach the first set distance close to one end of the third link, the third link is driven to continue to be screwed in until the third tightening fork opens upward. Since the tolerance of the first set distance is less than or equal to the pitch of the third link, the third tightening unit can be smoothly lowered to the first height while ensuring the installation accuracy of the control arm assembly. Thus, the tightening assembly can automatically install the control arm, improve the installation efficiency of the control arm, and make the installation of the control arm easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A flow chart of a control arm installation method according to an embodiment is shown;

[0049] Figure 2 A schematic diagram of a control arm mounting system of a first embodiment is shown;

[0050] Figure 3 A schematic diagram of a control arm mounting system of a second embodiment is shown;

[0051] Figure 4 A partial schematic diagram of a control arm mounting system according to a first embodiment is shown;

[0052] Figure 5 A partial schematic diagram of a control arm mounting system of a second embodiment is shown;

[0053] Figure 6 A partial schematic diagram of a control arm mounting system of a third embodiment is shown.

[0054] Reference numerals: 10 control arm assembly; 11 first connecting rod; 111 positioning sleeve; 112 first fixing rod; 113 first screw rod; 12 second connecting rod; 121 positioning fork; 122 second fixing rod; 123 second screw rod; 13 third connecting rod; 14 first nut; 15 second nut; 20 slide assembly; 21 first slide unit; 211 first slide seat; 212 first positioning pin; 213 first support block; 214 first rail; 215 first slider; 22 second slide unit; 221 second slide seat; 222 second positioning pin; 223 second support Support block; 224 second track; 225 second slider; 30 tightening assembly; 31 first tightening unit; 311 first tightening fork; 312 first tightening part; 313 first movable part; 314 first driving part; 32 second tightening unit; 321 second tightening fork; 322 second tightening part; 323 second movable part; 324 second driving part; 33 third tightening unit; 331 third tightening fork; 332 third tightening part; 333 third movable part; 334 third driving part; 40 base; 50 control assembly; 51 control unit; 52 position sensor. DETAILED DESCRIPTION

[0055] 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, rather than implying any limitation on the scope of the present disclosure.

[0056] As used herein, the term "including" and its variants are to be interpreted as open terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part 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 orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated system, element or component to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected", and "connected" should be understood in a broad sense. 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 directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two systems, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different systems, 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 and quantity of the indicated systems, elements or components. Unless otherwise specified, "plurality" means two or more.

[0057] In this embodiment, with the development of vehicles, the application of control arms is becoming more and more extensive. However, during the installation of the control arm, the installation process is difficult due to the high precision requirements of the control arm installation. When the control arm assembly 10 is tightened by the tightening assembly 30, it is difficult to return the tightening assembly 30 because the opening direction of the tightening device is uncertain after tightening. This embodiment provides a control arm installation method, such as Figure 1 As shown, the control arm installation method may include steps S10 to S50, and each step is described in detail as follows:

[0058] In step S10, based on the completion of positioning of the first connecting rod 11 and the second connecting rod 12 on the slide assembly 20, the first nut 14 can be screwed into the first connecting rod 11 to the first screw-in position, and the second nut 15 can be screwed into the second connecting rod 12 to the second screw-in position. The first screw-in position can include the first nut 14 being screwed into the first connecting rod 11, so that the distance between the end of the first connecting rod 11 close to the third connecting rod 13 and the first nut 14 reaches a certain length, which is convenient for the subsequent installation of the third connecting rod 13. The second screw-in position can include the second nut 15 being screwed into the second connecting rod 12, so that the distance between the end of the second connecting rod 12 close to the third connecting rod 13 and the second nut 15 reaches a certain length, which is convenient for the subsequent installation of the third connecting rod 13. By fixing the first connecting rod 11 and the second connecting rod 12 on the slide assembly 20, the stability of the first connecting rod 11 and the second connecting rod 12 during the subsequent installation process can be guaranteed.

[0059] In step S20, based on the first nut 14 being screwed into the first connecting rod 11 to the first screw-in position, and the second nut 15 being screwed into the second connecting rod 12 to the second screw-in position, the two ends of the third connecting rod 13 can be driven to be threadedly connected with the first connecting rod 11 and the second connecting rod 12 respectively. The thread rotation directions of the first connecting rod 11 and the second connecting rod 12 can be opposite, so that the first connecting rod 11 and the second connecting rod 12 can be screwed into the third connecting rod 13 synchronously. The outer peripheral wall of the first connecting rod 11 can be threadedly connected with the inner peripheral wall of the third connecting rod 13. The outer peripheral wall of the second connecting rod 12 can be threadedly connected with the inner peripheral wall of the third connecting rod 13, and while ensuring the connection and tightening between the first connecting rod 11, the third connecting rod 13, and the second connecting rod 12, the length accuracy of the control arm can be ensured by adjusting the length of the threaded connection part.

[0060] In step S30, based on the first connecting rod 11 and the second connecting rod 12 reaching the first set distance at one end close to the third connecting rod 13, the third connecting rod 13 can be driven to continue to be screwed in until the third tightening fork 331 opens upward, and the third tightening unit 33 stops screwing in. Among them, the screwing-in angle of the third tightening fork 331 can be less than 360°. The tolerance of the first set distance can be greater than or equal to the pitch of the third connecting rod 13. The third tightening unit 33 may include a third tightening fork 331, and the third connecting rod 13 may be placed on the third tightening fork 331. By controlling the rotation of the third tightening fork 331, the third connecting rod 13 can be driven to rotate, so that the two ends of the third connecting rod 13 can be threadedly connected to the first connecting rod 11 and the second connecting rod 12, respectively.

[0061] In step S40, based on the third tightening unit 33 stopping screwing in and the third tightening fork 331 opening upward, the first nut 14 and the second nut 15 can be spirally moved toward the third connecting rod 13 until they abut against the third connecting rod 13. By providing the first nut 14 and the second nut 15 and abutting against both ends of the third connecting rod 13, the connection between the third connecting rod 13 and the first connecting rod 11 and the second connecting rod 12 is further prevented from being loosened, thereby ensuring the stability of the control arm assembly 10.

[0062] In step S50, based on the first nut 14 and the second nut 15 moving spirally toward the third connecting rod 13 until they abut against the third connecting rod 13, the third tightening unit 33 can be controlled to drop to a first height, and the first height can include the end of the third tightening unit 33 close to the slide assembly 20 dropping to a set position in the height direction, and the control arm assembly 10 is installed. The first nut 14, the third connecting rod 13, and the second nut 15 can be installed by the tightening assembly 30, thereby ensuring the installation accuracy of the control arm assembly 10 while ensuring the installation efficiency of the control arm assembly 10.

[0063] In this embodiment, step S10 may include steps S11 to S13, and each step is described in detail as follows:

[0064] In step S11, based on the completion of positioning of the first connecting rod 11 and the second connecting rod 12 on the slide assembly 20, the slide assembly 20 can be moved to a set position. The set position may include the first slide unit 21 moving to a first set position along the first track 214 in a direction away from the second connecting rod 12, and the second slide unit 22 moving to a second set position along the second track 224 in a direction away from the first connecting rod 11. The slide assembly 20 may include a first slide unit 21 and a second slide unit 22, the first slide unit 21 and the second slide unit 22 are detachably connected to the base 40, the first connecting rod 11 may be fixed on the first slide unit 21, and the second connecting rod 12 may be fixed on the second slide unit 22. By moving the slide assembly 20 to the set position, an avoidance space may be reserved between the first slide seat 211 and the second slide seat 221, so that the third tightening unit 33 can rise to the second height and place the third connecting rod 13.

[0065] In step S12, based on the slide assembly 20 moving to the set position, the tightening assembly 30 can be switched to the first state. Among them, the first state can include the first tightening unit 31 rising to the second height, and the second tightening unit 32 rising to the second height. The second height can include the central axis of the tightening fork of the tightening assembly 30 and the central axis of the first connecting rod 11 being on the same horizontal line. The first tightening fork 311 can abut against the first nut 14, so that the first nut 14 can be tightened by the first tightening fork 311, and the second tightening fork 321 can abut against the second nut 15, so that the second nut 15 can be tightened by the second tightening fork 321. The tightening assembly 30 can also include a first tightening unit 31 and a second tightening unit 32. The first tightening unit 31 can be fixedly connected to the base 40, and the second tightening unit 32 can be fixedly connected to the base 40.

[0066] In step S13, based on the tightening assembly 30 switching to the first state, the first nut 14 can be placed on the first tightening unit 31 and screwed into the first connecting rod 11 to the first screw-in position, and the second nut 15 can be placed on the second tightening unit 32 and screwed into the second connecting rod 12 to the second screw-in position.

[0067] In this embodiment, step S20 may include step S21 to step S24, and each step is described in detail as follows:

[0068] In step S21, based on the first nut 14 being screwed into the first connecting rod 11 to the first screw-in position, and the second nut 15 being screwed into the second connecting rod 12 to the second screw-in position, the first nut 14 can be screwed in until the first tightening fork 311 opens upward, and the second nut 15 can be screwed in until the second tightening fork 321 opens upward. Among them, the rotation angle of the first tightening fork 311 can be less than 360°. The rotation angle of the second tightening fork 321 can be less than 360°. By ensuring that the first tightening fork 311 opens upward, it is convenient for the first tightening unit 31 to descend to the first height, and by ensuring that the second tightening fork 321 opens upward, it is convenient for the second tightening unit 32 to descend to the first height.

[0069] In step S22, based on the first nut 14 being screwed in until the first tightening fork 311 opens upward and the second nut 15 being screwed in until the second tightening fork 321 opens upward, the first tightening unit 31 and the second tightening unit 32 can be controlled to descend to the first height and the first tightening fork 311 and the second tightening fork 321 can be controlled to descend to the first height, so that the first tightening fork 311 can be separated from the first nut 14 and the second tightening fork 321 can be separated from the second nut 15, and the fixing of the first nut 14 and the second nut 15 is released.

[0070] In step S23 , based on the first tightening unit 31 descending to the first height and the second tightening unit 32 descending to the first height, the third tightening unit 33 may be driven to rise to the second height.

[0071] In step S24 , based on the third tightening unit 33 rising to the second height, the third connecting rod 13 can be placed on the third tightening unit 33 and the two ends of the third connecting rod 13 can be driven to be threadedly connected with the first connecting rod 11 and the second connecting rod 12 respectively.

[0072] In this embodiment, step S40 may include step S41 and step S42, and each step is described in detail as follows:

[0073] In step S41 , based on the third tightening unit 33 stopping screwing in and the third tightening fork 331 opening upward, the first tightening unit 31 and the second tightening unit 32 are driven to rise to a second height.

[0074] In step S42, based on the first tightening unit 31 and the second tightening unit 32 rising to the second height, the first tightening unit 31 can be driven to drive the first nut 14 to spirally move in a direction close to the third connecting rod 13 until it abuts against the third connecting rod 13. The second tightening unit 32 drives the second nut 15 to spirally move in a direction close to the third connecting rod 13 until it abuts against the third connecting rod 13. By providing the first nut 14 and the second nut 15 and abutting against both ends of the third connecting rod 13 respectively, the connection between the third connecting rod 13 and the first connecting rod 11 and the second connecting rod 12 is further prevented from being loosened, thereby ensuring the stability of the control arm assembly 10.

[0075] In this embodiment, the control arm installation method may further include step S61 and step S62, each of which is described in detail as follows:

[0076] Step S61, based on the third tightening unit 33 descending to the first height, the opening directions of the first tightening fork 311 and the second tightening fork 321 can be obtained to facilitate the subsequent descending of the first tightening unit 31 and the second tightening unit 32 to the first height.

[0077] Step S62: Based on the first tightening fork 311 and the second tightening fork 321 opening upward, the first tightening unit 31 and the second tightening unit 32 are driven to descend to a first height, so that the first tightening fork 311 can be separated from the first nut 14, and the second tightening fork 321 can be separated from the second nut 15, and the fixing of the first nut 14 and the second nut 15 is released.

[0078] In this embodiment, the control arm installation method may further include steps S631 to S634, each of which is described in detail as follows:

[0079] In step S631, based on the fact that one of the first tightening fork 311 and the second tightening fork 321 is a tightening fork in the first state and the other is a tightening fork in the second state, the tightening fork in the first state can be driven down to a first height to prevent the tightening fork in the first state from affecting subsequent operations. The tightening fork in the first state is the tightening fork with the opening upward in the first tightening fork 311 and the second tightening fork 321 in step S61, and the tightening fork in the second state is the tightening fork in the first tightening fork 311 and the second tightening fork 321 in step S61 that forms a set angle with the tightening fork in the first state.

[0080] In step S632, based on the first state tightening fork descending to the first height, the first positioning pin 212 and the second positioning pin 222 can be removed, so that the second state tightening fork can drive the control arm assembly 10 to rotate, thereby preventing the second state tightening fork from affecting the length of the control arm assembly 10 when rotating.

[0081] In step S633 , based on the removal of the first positioning pin 212 and the second positioning pin 222 , the second state tightening fork can be driven to drive the control arm assembly 10 to rotate until the second state tightening fork opens upward, so that the second state tightening fork opens upward while ensuring the length accuracy of the control arm assembly 10 .

[0082] In step S634 , based on the fact that the tightening fork in the second state opens upward, the tightening fork in the second state can be driven to descend to the first height, so that the control arm assembly 10 can be removed from the slide assembly 20 .

[0083] In this embodiment, the control arm installation method may further include steps S641 to S645, each of which is described in detail as follows:

[0084] In step S641, based on the first tightening fork 311 and the third tightening fork 331 forming a second set angle, and the second tightening fork 321 and the third tightening fork 331 forming a third set angle, the first positioning pin 212 and the second positioning pin 222 can be removed, so that the tightening assembly 30 can drive the control arm assembly 10 to rotate, thereby preventing the tightening fork from affecting the length of the control arm assembly 10 when rotating.

[0085] In step S642 , based on the removal of the first positioning pin 212 and the second positioning pin 222 , the first tightening fork 311 may be driven to drive the control arm assembly 10 and the second tightening fork 321 to rotate until the opening of the first tightening fork 311 is upward.

[0086] Step S643 , based on the first tightening fork 311 opening upward, the first tightening unit 31 may be driven to descend to the first height to prevent the first tightening fork 311 from interfering with the subsequent descending of the second tightening fork 321 to the first height.

[0087] Step S644 , based on the first tightening unit 31 descending to the first height, the second tightening fork 321 may be driven to drive the control arm assembly 10 to rotate until the opening of the second tightening fork 321 is facing upward.

[0088] Step S645 , based on the second tightening fork 321 opening upward, the second tightening unit 32 can be driven to descend to the first height, so that the control arm assembly 10 can be removed from the slide assembly 20 .

[0089] In this embodiment, in step S20, the third tightening unit 33 can continue to be screwed in to form a fourth set angle with the vertical upward direction, and the third tightening fork 331 can be driven by inertia to continue to be screwed in until the opening of the third tightening fork 331 is upward, further ensuring the length accuracy of the control arm assembly 10.

[0090] This embodiment discloses a control arm installation system applied to any control arm installation method in the above embodiments. The control arm installation system may include:

[0091] The base 40 can be used to support and fix the entire control arm mounting device.

[0092] The slide assembly 20 may include a first slide unit 21 and a second slide unit 22. The first slide unit 21 is detachably connected to the base 40, and the second slide unit 22 is detachably connected to the base 40. The first slide unit 21 may include a first slide seat 211, a first positioning pin 212, a first support block 213, a first track 214, and a first slider 215. The first slider 215 is slidably connected to the first track 214. The first slider 215 may be fixedly connected to the first slide seat 211, and the first slide unit 21 may drive the first connecting rod 11 to slide in the direction of the first track 214, so as to facilitate the installation of the control arm assembly 10. The first positioning pin 212 is detachably connected to the first slide seat 211. The first support block 213 may be fixedly connected to the first slide seat 211. The second slide unit 22 may include a second slide seat 221, a second positioning pin 222, a second support block 223, a second track 224, and a second slider 225. The second slider 225 can be slidably connected to the second track 224. The second slider 225 can be fixedly connected to the second slide seat 221, and the second slide unit 22 can drive the second connecting rod 12 to slide in the direction of the second track 224, so as to facilitate the installation of the control arm assembly 10. The second positioning pin 222 is detachably connected to the second slide seat 221. The second support block 223 can be fixedly connected to the second slide seat 221.

[0093] The control arm assembly 10, such as Figure 2As shown, the control arm assembly 10 may include a first connecting rod 11, a second connecting rod 12, a third connecting rod 13, a first nut 14, and a second nut 15. The control arm assembly 10 may include a state after installation, and the state after installation may include that the outer peripheral wall of the first connecting rod 11 near one end of the third connecting rod 13 is threadedly connected with the inner peripheral wall of the third connecting rod 13. A portion of the outer peripheral wall of the second connecting rod 12 near one end of the third connecting rod 13 may abut against the inner peripheral wall of the third connecting rod 13. The first nut 14 may be sleeved on the outer peripheral wall of the first connecting rod 11 and abut against the third connecting rod 13 near one end of the third connecting rod 13. The second nut 15 may be sleeved on the outer peripheral wall of the second connecting rod 12 and abut against the third connecting rod 13 near one end of the third connecting rod 13. The first connecting rod 11 may include a positioning sleeve 111, a first fixing rod 112, and a first screw 113, and the positioning sleeve 111, the first fixing rod 112, and the first screw 113 are fixedly connected in sequence. The positioning sleeve 111 is detachably connected to the first positioning pin 212 to prevent the first connecting rod 11 from rotating relative to each other when tightened. The first fixing rod 112 can abut against the first support block 213 to fix the relative position of the first connecting rod 11 and the first support block 213. The second connecting rod 12 may include a positioning fork 121, a second fixing rod 122, and a second screw rod 123. The positioning fork 121, the second fixing rod 122, and the second screw rod 123 are fixedly connected in sequence. The positioning fork 121 is detachably connected to the second positioning pin 222 to prevent the second connecting rod 12 from rotating relative to each other when tightened. The second fixing rod 122 abuts against the second support block 223 to fix the relative position of the first connecting rod 11 and the first support block 213.

[0094] The tightening assembly 30 may include a third tightening unit 33. Figure 5 As shown, the third tightening unit 33 may include a third tightening portion 332, a third tightening fork 331, a third movable portion 333, and a third driving portion 334. The third driving portion 334 is detachably connected to the base 40, and the third movable portion 333 is detachably connected to an end of the third driving portion 334 away from the base 40. The third tightening portion 332 may be disposed in a hollow cavity of the third movable portion 333, and an end of the third tightening portion 332 away from the third driving portion 334 may be recessed inward to form a third tightening fork 331, and the third tightening fork 331 may drive the third connecting rod 13 to rotate, so that the two ends of the third connecting rod 13 may be threadedly connected to the first connecting rod 11 and the second connecting rod 12, respectively.

[0095] Control component 50. Figure 3As shown, the control assembly 50 may include a control unit 51 and a position sensor 52. The position sensor 52 may be disposed at one end of the first slide unit 21 close to the second slide unit 22, and the distance between the position sensor 52 and one end of the second slide seat 221 close to the first slide seat 211 may be obtained to determine whether the length of the control arm assembly 10 meets the requirement. The control unit 51 may be electrically connected to the position sensor 52.

[0096] In this embodiment, the tightening assembly 30 may further include a first tightening unit 31 and a second tightening unit 32. Figure 4 As shown, the first tightening unit 31 may include a first tightening portion 312, a first tightening fork 311, a first movable portion 313, and a first driving portion 314. The first driving portion 314 is detachably connected to the base 40. One end of the first driving portion 314 away from the base 40 is detachably connected to the first movable portion 313. The first tightening portion 312 may be disposed in a hollow cavity of the first movable portion 313, and one end of the first tightening portion 312 away from the first driving portion 314 may be recessed inward to form a first tightening fork 311. The first tightening fork 311 may drive the first nut 14 to rotate, so that the first nut 14 may move spirally on the first connecting rod 11. As shown in FIG. Figure 6 As shown, the second tightening unit 32 may include a second tightening portion 322, a second tightening fork 321, a second movable portion 323, and a second driving portion 324. The second driving portion 324 is detachably connected to the base 40. One end of the second driving portion 324 away from the base 40 is detachably connected to the second movable portion 323. The second tightening portion 322 may be disposed in a hollow cavity of the second movable portion 323, and one end of the second tightening portion 322 away from the second driving portion 324 may be recessed inward to form a second tightening fork 321, and the second tightening fork 321 may drive the second nut 15 to rotate, so that the second nut 15 may be spirally moved on the second connecting rod 12.

[0097] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A control arm installation method, characterized in that: The control arm installation method comprises: Step S10, based on the first connecting rod and the second connecting rod being positioned on the slide assembly, screwing the first nut into the first connecting rod to a first screw-in position, and screwing the second nut into the second connecting rod to a second screw-in position; Step S20, based on the first nut being screwed into the first connecting rod to the first screwed-in position, the second nut being screwed into the second connecting rod to the second screwed-in position, driving two ends of the third connecting rod to be threadedly connected to the first connecting rod and the second connecting rod respectively; Step S30, based on the first connecting rod and the second connecting rod reaching the first set distance at one end close to the third connecting rod, the third connecting rod is driven to continue to be screwed in until the opening of the third tightening fork is upward, and the third tightening unit stops screwing in; wherein the screwing-in angle of the third tightening fork is less than 360°; A≥B, A is the tolerance of the first set distance, and B is the pitch of the third connecting rod; the third tightening unit drives the third connecting rod to rotate; Step S40, based on the third tightening unit stopping screwing in and the third tightening fork opening upward, the first nut and the second nut are spirally moved in a direction close to the third connecting rod until they abut against the third connecting rod; Step S50, based on the first nut and the second nut spirally moving in a direction close to the third connecting rod until they abut against the third connecting rod, the third tightening unit descends to a first height; The control arm installation method also includes: Step S61, based on the third tightening unit descending to the first height, obtaining the opening directions of the first tightening fork and the second tightening fork; Step S62, based on the first tightening fork and the second tightening fork opening upward, driving the first tightening unit and the second tightening unit to descend to the first height; wherein the first tightening unit drives the first nut to rotate; and the second tightening unit drives the second nut to rotate; The control arm installation method also includes: Step S631, based on the fact that one of the first tightening fork and the second tightening fork is a tightening fork in the first state and the other tightening fork is a tightening fork in the second state, driving the tightening fork in the first state to descend to the first height; wherein the tightening fork in the first state is the tightening fork with the opening upwards among the first tightening fork and the second tightening fork in step S61, and the tightening fork in the second state is the tightening fork that forms a set angle with the tightening fork in the first state among the first tightening fork and the second tightening fork in step S61; Step S632, based on the first state, the tightening fork is lowered to the first height, and the first positioning pin and the second positioning pin are removed; Step S633, based on removing the first positioning pin and the second positioning pin, driving the second state tightening fork to drive the control arm assembly to rotate until the second state tightening fork opens upward; Step S634: Based on the fact that the tightening fork in the second state opens upward, the tightening fork in the second state is driven to descend to the first height.

2. A control arm installation method according to claim 1, characterized in that: The step S10 comprises: Step S11, based on the first connecting rod and the second connecting rod being positioned on the slide assembly, the slide assembly moves to a set position; wherein the set position includes the first slide unit moving along the first track in a direction away from the second connecting rod to a first set position, and the second slide unit moving along the second track in a direction away from the first connecting rod to a second set position; Step S12, based on the slide assembly moving to the set position, the tightening assembly switches to the first state; wherein the first state includes the first tightening unit rising to the second height, and the second tightening unit rising to the second height; Step S13, based on the tightening assembly switching to the first state, placing a first nut on the first tightening unit and screwing the first connecting rod into a first screw-in position, placing a second nut on the second tightening unit and screwing the second connecting rod into a second screw-in position.

3. A control arm installation method according to claim 2, characterized in that: The step S20 comprises: Step S21, based on the first nut being screwed into the first connecting rod to the first screwed-in position, the second nut being screwed into the second connecting rod to the second screwed-in position, the first nut is screwed in continuously until the first tightening fork opens upward, and the second nut is screwed in continuously until the second tightening fork opens upward; wherein the rotation angle of the first tightening fork is less than 360°; and the rotation angle of the second tightening fork is less than 360°; Step S22, based on the first nut being screwed in continuously until the first tightening fork opening is upward, and the second nut being screwed in continuously until the second tightening fork opening is upward, controlling the first tightening unit to descend to a first height, and the second tightening unit to descend to the first height; Step S23, based on the first tightening unit descending to the first height and the second tightening unit descending to the first height, driving the third tightening unit to rise to the second height; Step S24, based on the third tightening unit rising to the second height, placing the third connecting rod on the third tightening unit and driving both ends of the third connecting rod to be threadedly connected with the first connecting rod and the second connecting rod respectively.

4. A control arm installation method according to claim 3, characterized in that: The step S40 comprises: Step S41, based on the third tightening unit stopping screwing in and the third tightening fork opening upward, driving the first tightening unit and the second tightening unit to rise to the second height; Step S42, based on the first tightening unit and the second tightening unit rising to the second height, the first tightening unit is driven to drive the first nut to move spirally toward the direction close to the third connecting rod until it abuts against the third connecting rod; the second tightening unit drives the second nut to move spirally toward the direction close to the third connecting rod until it abuts against the third connecting rod.

5. A control arm installation method according to claim 1, characterized in that: The control arm installation method also includes: Step S641, based on the first tightening fork and the third tightening fork forming a second set angle, and the second tightening fork and the third tightening fork forming a third set angle, remove the first positioning pin and the second positioning pin; Step S642, based on removing the first positioning pin and the second positioning pin, driving the first tightening fork to drive the control arm assembly and the second tightening fork to rotate until the first tightening fork opens upward; Step S643, based on the first tightening fork opening upward, driving the first tightening unit to descend to the first height; Step S644, based on the first tightening unit descending to the first height, driving the second tightening fork to drive the control arm assembly to rotate until the second tightening fork opens upward; Step S645: Based on the second tightening fork opening upward, drive the second tightening unit to descend to the first height.

6. A control arm installation method according to claim 1, characterized in that: In step S20, the third tightening unit continues to be screwed in until it forms a fourth set angle with the vertical upward direction, and the third tightening fork is driven by inertia to continue to be screwed in until the opening of the third tightening fork is upward.

7. A control arm mounting system, characterized in that: The control arm installation system is applied to a control arm installation method according to any one of claims 1 to 6, and the control arm installation system comprises: Base; A slide assembly, wherein the slide assembly includes a first slide unit and a second slide unit; the first slide unit is detachably connected to the base, and the second slide unit is detachably connected to the base; the first slide unit includes a first slide seat, a first positioning pin, a first support block, a first rail, and a first slider; the first slider is slidably connected to the first rail; the first slider is fixedly connected to the first slide seat; the first positioning pin is detachably connected to the first slide seat; the first support block is fixedly connected to the first slide seat; the second slide unit includes a second slide seat, a second positioning pin, a second support block, a second rail, and a second slider; the second slider is slidably connected to the second rail; the second slider is fixedly connected to the second slide seat; the second positioning pin is detachably connected to the second slide seat; the second support block is fixedly connected to the second slide seat; A control arm assembly, the control arm assembly includes a first connecting rod, a second connecting rod, a third connecting rod, a first nut, and a second nut; the control arm assembly includes a state after installation, the state after installation includes the outer peripheral wall of the first connecting rod near one end of the third connecting rod being threadedly connected to the inner peripheral wall of the third connecting rod; the outer peripheral wall of the second connecting rod near one end of the third connecting rod abuts against the inner peripheral wall of the third connecting rod; the first nut is sleeved on the outer peripheral wall of the first connecting rod and abuts against the third connecting rod near one end of the third connecting rod; the second nut is sleeved on the outer peripheral wall of the second connecting rod and abuts against the third connecting rod near one end of the third connecting rod; the first connecting rod includes a positioning sleeve, a first fixing rod, and a first screw, and the positioning sleeve, the first fixing rod, and the first screw are fixedly connected in sequence; the positioning sleeve is detachably connected to the first positioning pin; the first fixing rod abuts against the first support block; the second connecting rod includes a positioning fork, a second fixing rod, and a second screw; the positioning fork, the second fixing rod, and the second screw are fixedly connected in sequence; the positioning fork is detachably connected to the second positioning pin, and the second fixing rod abuts against the second support block; A tightening assembly, wherein the tightening assembly comprises a third tightening unit; the third tightening unit comprises a third tightening portion, a third tightening fork, a third movable portion, and a third driving portion; the third driving portion is detachably connected to the base, and the third movable portion is detachably connected to an end of the third driving portion away from the base; the third tightening portion is arranged in a hollow cavity of the third movable portion, and an end of the third tightening portion away from the third driving portion is recessed inward to form a third tightening fork; Control component; the control component includes a control unit and a position sensor; the position sensor is arranged at one end of the first slide unit close to the second slide unit; the control unit is electrically connected to the position sensor.

8. A control arm mounting system according to claim 7, characterized in that: The tightening assembly also includes a first tightening unit and a second tightening unit; the first tightening unit includes a first tightening part, a first tightening fork, a first movable part, and a first driving part; the first driving part is detachably connected to the base; one end of the first driving part away from the base is detachably connected to the first movable part; the first tightening part is arranged in a hollow cavity of the first movable part, and one end of the first tightening part away from the first driving part is recessed inwardly to form a first tightening fork, and the second tightening unit includes a second tightening part, a second tightening fork, a second movable part, and a second driving part; the second driving part is detachably connected to the base; one end of the second driving part away from the base is detachably connected to the second movable part; the second tightening part is arranged in the hollow cavity of the second movable part, and one end of the second tightening part away from the second driving part is recessed inwardly to form a second tightening fork.

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