Steering angle module chassis assembling device and method

Abstract

The invention relates to a steering angle module chassis assembling device and method. The steering angle module chassis assembling device comprises a tool assembly, an integrated hub motor module and an integrated drive suspension module. The tool assembly comprises a sliding rail base, a first tray structure and a second tray structure, wherein the first tray structure and the second tray structure are arranged on the sliding rail base. Wherein the integrated hub motor module can be positioned at the first tray structure; the integrated drive suspension module can be positioned at the second tray structure; the first tray structure and the second tray structure can get close to each other through the sliding rail base so as to assemble the integrated hub motor module and the integrated drive suspension module. Through the sliding function of the sliding rail base, the first tray structure and the second tray structure can be close to each other, and accurate assembly of the module is achieved. Particularly, the special assembly requirement of the 90-degree steering angle module chassis is considered in the design of the sliding rail, so that the possibility of rigid collision is avoided, the assembly friction and abrasion are reduced, and the positioning precision is further improved.

Description

Technical Field

[0001] The present application belongs to the field of new automobile processing technology and equipment, and in particular, relates to a steering angle module chassis assembly device and method. Background Art

[0002] In the current automobile manufacturing industry, the positioning and assembly of the subframe is a crucial link, which directly affects the structural stability and driving performance of the vehicle. Figures 1 to 2 As shown in the figure, the subframe is mainly fixed and positioned by a precise positioning hole, an auxiliary positioning point and two supporting surfaces. Although this design concept can meet the basic assembly requirements to a certain extent, it exposes a series of problems in actual application.

[0003] First of all, the biggest problem with this positioning fixture design is its insufficient positioning accuracy. Since there is only one precise positioning hole, and the remaining positioning points are set to absorb the tolerances generated during the manufacturing process of parts, the accuracy of the subframe itself during the positioning process cannot be fully guaranteed; as a large mass component, the subframe is subject to small errors in the manufacturing process, which will accumulate and have a significant impact on the final assembly accuracy. This problem of insufficient accuracy is particularly prominent when placing the subframe on the positioning fixture and connecting the remaining parts; since there is only one precise positioning point, the remaining points cannot accurately control the relative positions of the left and right side components of the subframe, so it is easy to appear Figure 3 The parts shown deviate from the designed position of the vehicle; this not only affects the assembly accuracy of the vehicle, but may also have an adverse effect on the performance and service life of the vehicle.

[0004] Secondly, this traditional positioning tooling design also has the problem of low assembly efficiency; since it relies on only one precise positioning hole and auxiliary positioning points for assembly, a lot of time and effort is required during the assembly process to ensure the accurate docking of parts; especially when it is necessary to assemble parts on both sides of the subframe, due to the limitation of positioning accuracy, repeated adjustments and corrections are often required, which greatly reduces the assembly efficiency; this not only increases production costs, but may also delay production progress and have an adverse impact on the competitiveness of automobile manufacturers.

[0005] In summary, the existing subframe positioning tooling design has obvious deficiencies in positioning accuracy and assembly efficiency. Therefore, it is necessary to improve and optimize the existing positioning tooling design to improve the positioning accuracy and assembly efficiency of the subframe, thereby meeting the urgent needs of the automobile manufacturing industry for high-precision and high-efficiency assembly. Summary of the invention

[0006] In response to the above two problems, the steering angle module chassis assembly device and method provided in the present application aim to improve the positioning accuracy and assembly efficiency of the subframe by improving and optimizing the existing positioning tooling design, so as to meet the urgent needs of the automobile manufacturing industry for high-precision and high-efficiency assembly, especially for the precision assembly of the 90° steering angle module chassis. Since it allows the wheels to achieve large angle steering, such as turning around on the spot or flexible maneuvering in a narrow space, precision assembly can ensure the accuracy and reliability of the steering system, so that the vehicle can steer according to the expected trajectory during driving, avoiding deviation or loss of control due to assembly errors.

[0007] According to one aspect of the present application, a steering angle module chassis assembly device is provided, comprising a tooling assembly, an integrated wheel hub motor module and an integrated drive suspension module; the tooling assembly comprises a slide rail base and a first tray structure and a second tray structure arranged on the slide rail base; wherein the integrated wheel hub motor module can be positioned at the first tray structure; the integrated drive suspension module can be positioned at the second tray structure; the first tray structure and the second tray structure can be approached to each other through the slide rail base to assemble the integrated wheel hub motor module and the integrated drive suspension module.

[0008] In a further scheme of the present application, the first pallet structure includes a first pallet body, and a motor lifting plate and a brake lifting plate arranged on the first pallet body; the integrated hub motor module includes a hub motor assembly, a motor mounting bracket, a slide column assembly and a brake assembly, the motor mounting bracket is installed on one side of the hub motor assembly, and the brake assembly is installed on the other side; the slide column assembly is connected to the motor mounting bracket; the hub motor assembly can be placed on the motor lifting plate, and the brake assembly can be placed on the brake lifting plate.

[0009] In a further solution of the present application, the motor lifting plate and the brake lifting plate have a height difference, and are both configured to be able to rise and fall relative to the first tray body.

[0010] In a further scheme of the present application, the second pallet structure includes a second pallet body, and a plurality of steering knuckle brackets, a plurality of first suspension brackets and a plurality of second suspension brackets arranged on the second pallet body; the integrated drive suspension module includes a suspension bracket, and a steering integrated assembly, a suspension assembly and a lower control arm assembly connected to the suspension bracket; the suspension bracket is positioned and connected to the second pallet body through the first suspension bracket and a plurality of second suspension brackets, and the steering integrated assembly is supported on the steering knuckle bracket.

[0011] In a further solution of the present application, the integrated drive suspension module also includes a steering gear shock absorber; the suspension bracket includes a vertical frame and a horizontal frame, the vertical frame is connected to a plurality of extended mounting fulcrums, the lower control arm assembly and the steering gear shock absorber are connected to the mounting fulcrums; the horizontal frame is connected to a mounting seat, and the suspension assembly is installed on the mounting seat.

[0012] In a further solution of the present application, the steering integrated assembly includes a bogie, a steering gear and a ball pin; the two ends of the steering gear are respectively connected to the steering gear and the ball pin.

[0013] In a further solution of the present application, a first mating groove and a protrusion are provided at the end of the first pallet body facing the second pallet body, and a second mating groove and an alignment groove corresponding to the protrusion are provided at the end of the second pallet body. The first pallet structure and the second pallet structure are slid close to each other, so that the end surfaces of the first pallet structure and the second pallet structure are partially fitted, and the first mating groove and the second mating groove are combined to form a through hole, and the protrusion is embedded in the alignment groove.

[0014] The second aspect of the present application also provides a steering angle module chassis assembly method, which includes: controlling the first tray structure and the second tray structure to move away from each other to a preset distance; assembling the wheel hub motor assembly, the motor mounting bracket, the sliding column assembly and the brake assembly to form an integrated wheel hub motor module and positioning the integrated wheel hub motor module at the first tray structure; assembling the suspension bracket and the steering integrated assembly, the suspension assembly, the steering gear damper and the lower control arm assembly connected to the suspension bracket to form an integrated drive suspension module and positioning the integrated drive suspension module at the second tray structure; controlling the first tray structure and the second tray structure to move closer to each other to assemble the integrated wheel hub motor module and the integrated drive suspension module.

[0015] In a further scheme of the present application, a wheel hub motor assembly, a motor mounting bracket, a sliding column assembly and a brake assembly are assembled to form an integrated wheel hub motor module and the integrated wheel hub motor module is positioned at a first tray structure, including: installing the motor mounting bracket on one side of the wheel hub motor assembly, and installing the brake assembly on the other side of the wheel hub motor assembly; after the wheel hub motor assembly and the brake are positioned at the first tray structure, the sliding column assembly is assembled at the motor mounting bracket.

[0016] In a further scheme of the present application, a suspension bracket and a steering integrated assembly, a suspension assembly, a steering gear shock absorber and a lower control arm assembly connected to the suspension bracket are assembled to form an integrated drive suspension module and the integrated drive suspension module is positioned at a second pallet structure, including: installing a steering gear and a ball pin at both ends of the bogie respectively; installing a lower control arm assembly and a steering gear shock absorber on a vertical frame of the suspension bracket, and installing a suspension assembly on a transverse frame; after assembling the bogie equipped with the steering gear and the ball pin onto the suspension bracket, the suspension bracket and the bogie are positioned at the second pallet structure.

[0017] In summary, the steering angle module chassis assembly device provided by the embodiment of the present application, the slide rail base provides stable support and sliding rails to ensure the stability and accuracy of the tray structure during movement; the first tray structure and the second tray structure are used to position and support the integrated wheel hub motor module and the integrated drive suspension module respectively, to ensure the position accuracy of the two modules during assembly, and through the sliding function of the slide rail base, the first tray structure and the second tray structure can be close to each other to achieve accurate assembly of the modules. In particular, the slide rail design takes into account the special assembly requirements of the 90° steering angle module chassis, avoids the possibility of rigid collision and reduces assembly friction and wear, further improving the positioning accuracy.

[0018] Furthermore, dividing the corner module into two parts, an integrated wheel hub motor module and an integrated drive suspension module, for subassembly can allow more operating space margin for each part and reduce mutual interference during assembly, thereby facilitating operation and adjustment by operators, and the subassembly process can be carried out in parallel, that is, the integrated wheel hub motor module and the integrated drive suspension module can be assembled at the same time, thereby significantly shortening the overall assembly time and improving assembly efficiency. The integrated wheel hub motor module and the integrated drive suspension module after subassembly are positioned with the corresponding pallets, which can ensure that each component can be accurately aligned and fixed during assembly, avoiding assembly errors caused by inaccurate positioning.

[0019] Other features and advantages of the embodiments of the present application will be described in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the structure of a conventional sub-frame positioning tooling exemplified in the prior art;

[0022] Figure 2 A schematic diagram of the connection between a subframe and a positioning fixture as exemplified in the prior art;

[0023] Figure 3 It is a schematic diagram of the prior art example of a subframe and a positioning tool assembly deviation;

[0024] Figure 4 A schematic structural diagram of a chassis assembly device for a steering angle module provided in an embodiment of the present application from a first axis perspective;

[0025] Figure 5 A schematic structural diagram of a chassis assembly device for a steering angle module provided in an embodiment of the present application from a second axis perspective;

[0026] Figure 6 A schematic structural diagram of a tooling assembly of a steering angle module chassis assembly device provided in an embodiment of the present application;

[0027] Figure 7 A schematic structural diagram of a first tray structure of a tooling assembly provided in an embodiment of the present application;

[0028] Figure 8 A schematic diagram of the structure of the second tray of the tooling assembly provided in an embodiment of the present application;

[0029] Fig. 9 A schematic structural diagram of a first tray structure and a second tray structure of a tooling assembly provided in an embodiment of the present application when they are in a spaced state;

[0030] Fig.10 An exploded schematic diagram of an integrated wheel hub motor module and an integrated drive suspension module provided in an embodiment of the present application;

[0031] Figures 11 to 14 A node diagram of step S20 provided for illustrating an embodiment of the present application;

[0032] Figures 15 to 18 The node diagram of step S30 provided for illustrating an embodiment of the present application is shown.

[0033] Description of reference numerals:

[0034] 100. Steering angle module chassis assembly device;

[0035] 10. Tooling assembly; 11. Slide rail base; 12. First pallet structure; 121. First pallet body; 122. Motor lifting plate; 123. Brake lifting plate; 13. Second pallet structure; 131. Second pallet body; 132. Steering knuckle bracket; 133. First suspension bracket; 134. Second suspension bracket;

[0036] 20. Integrated wheel hub motor module; 21. Wheel hub motor assembly; 22. Motor mounting bracket; 23. Sliding column assembly; 24. Brake assembly;

[0037] 30. Integrated drive suspension module; 31. Suspension bracket; 311. Vertical frame; 312. Horizontal frame; 32. Steering integrated assembly; 33. Suspension assembly; 34. Lower control arm assembly;

[0038] 40. Connecting rod assembly; 41. Upper connecting rod assembly; 42. Lower connecting rod assembly; 43. Toe link. DETAILED DESCRIPTION

[0039] In the description of this application, if there is a feature defined as "first" or "second" for descriptive purposes only, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Features defined as "first" or "second" may explicitly or implicitly include at least one of the defined features. If the description of "plurality" appears, the general meaning is to include at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0041] like Figures 4 to 10 A steering angle module chassis assembly device 100 provided in an embodiment of the present application includes a tooling assembly 10, an integrated wheel hub motor module 20 and an integrated drive suspension module 30.

[0042] The tooling assembly 10 includes a slide rail base 11 and a first tray structure 12 and a second tray structure 13 disposed on the slide rail base 11. The integrated hub motor module 20 can be positioned at the first tray structure 12, and the integrated drive suspension module 30 can be positioned at the second tray structure 13. The first tray structure 12 and the second tray structure 12 can be close to each other through the slide rail base 11 to assemble the integrated hub motor module 20 and the integrated drive suspension module 30.

[0043] The slide rail base 11 serves as the foundation of the entire device. The slide rail base 11 provides stable support and allows the first tray structure 12 and the second tray structure 12 to slide and adjust thereon; the first tray structure 12 is arranged on the slide rail base 11 and is used to position and support the integrated hub motor module 20 to ensure that the motor module can be accurately placed in a predetermined position. The second tray structure 13 is also arranged on the slide rail base 11, but is used to position and support the integrated drive suspension module 30, so that the suspension module can also be stably placed in the correct assembly position.

[0044] The integrated wheel hub motor module 20 is positioned on the first tray structure 12, and the integrated drive suspension module 30 is positioned on the second tray structure 13 and adjacent to the integrated wheel hub motor module 20, so as to assemble the integrated wheel hub motor module 20 and the integrated drive suspension module 30. During the assembly process, the first tray structure 12 and the second tray structure 13 can be close to each other through the sliding function of the slide rail base 11, and when the two modules are close to each other, the integrated wheel hub motor module 20 and the integrated drive suspension module 30 can be accurately assembled.

[0045] Among them, the positioning order of the integrated hub motor module 20 and the integrated drive suspension module 30 may not be limited, and may be asynchronous or synchronous: for example, the integrated hub motor module 20 may be positioned first, and then the integrated drive suspension module 30; or the integrated drive suspension module 30 may be positioned first, and then the integrated hub motor module 20, or they may be positioned simultaneously.

[0046] Based on the present general concept, the corner module is divided into two parts, namely the integrated hub motor module 20 and the integrated drive suspension module 30, for subassembly, so that the operating space of each part can be made more spacious, and mutual interference during the assembly process can be reduced, thereby facilitating the operator to operate and adjust, and the subassembly process can be carried out in parallel, that is, the integrated hub motor module 20 and the integrated drive suspension module 30 can be assembled at the same time, thereby significantly shortening the overall assembly time and improving the assembly efficiency. The integrated hub motor module 20 and the integrated drive suspension module 30 after subassembly are positioned with the corresponding pallets, which can ensure that each component can be accurately aligned and fixed during the assembly process, avoiding assembly errors caused by inaccurate positioning.

[0047] In summary, in the steering angle module chassis assembly device 100 provided in the embodiment of the present application, the slide rail base 11 provides stable support and sliding rails to ensure the stability and accuracy of the tray structure during movement; the first tray structure 12 and the second tray structure 13 are used to position and support the integrated hub motor module 20 and the integrated drive suspension module 30 respectively, ensuring the position accuracy of the two modules during the assembly process, and through the sliding function of the slide rail base 11, the first tray structure 12 and the second tray structure 13 can be close to each other to achieve accurate assembly of the modules. In particular, the slide rail design takes into account the special assembly requirements of the 90° steering angle module chassis, avoids the possibility of rigid collision and reduces friction and wear, further improving the positioning accuracy.

[0048] The first tray structure 12 includes a first tray body 121 , and a motor lifting plate 122 and a brake lifting plate 123 arranged on the first tray body 121 ; the integrated hub motor module 20 includes a hub motor assembly 21 , a motor mounting bracket 22 , a slide column assembly 23 and a brake assembly 24 .

[0049] The first tray body 121 is the main body of the entire tray structure. The first tray body 121 provides a stable support platform to ensure the stability and accuracy of the integrated hub motor module 20 during the assembly process. The motor lifting plate 122 is a component specially designed to support the hub motor assembly 21. Its shape and size match the bottom of the hub motor assembly 21 to ensure that the hub motor assembly 21 can be placed on the motor lifting plate 122 smoothly and accurately to avoid shaking or misalignment during the assembly process; the brake lifting plate 123 is used to support the brake assembly 24. Similar to the motor lifting plate 122, the shape and size of the brake lifting plate 123 also match the brake assembly 24 to ensure that the brake assembly 24 can be placed firmly on the tray, which facilitates the subsequent assembly work.

[0050] The wheel hub motor assembly 21 is the core component of the integrated wheel hub motor module 20, responsible for converting electrical energy into mechanical energy to drive the wheels to rotate. The motor mounting bracket 22 is used to fix the wheel hub motor assembly 21 on the vehicle; the sliding column assembly 23 connects the motor mounting bracket 22 and the vehicle suspension system; the brake assembly 24 is an important safety component in the integrated wheel hub motor module 20, responsible for providing braking force when needed.

[0051] The integrated wheel hub motor module 20 integrates the power unit, transmission unit and braking unit into the wheel hub, simplifying the mechanical part of the electric vehicle; the wheel hub motor directly drives the wheels, avoiding the loss of efficiency in the transmission path. The integrated wheel hub motor module 20 enables each wheel to be driven and controlled independently, which gives the vehicle better handling and stability, thereby achieving 90-degree turns by precisely controlling the speed and torque of each wheel.

[0052] Specifically, during the assembly process, one side of the wheel hub motor assembly 21 is connected to the vehicle suspension system through the motor mounting bracket 22, and the other side is connected to the brake system through the brake assembly 24. At the same time, the wheel hub motor assembly 21 can be stably placed on the motor lifting plate 122, and the brake assembly 24 can be accurately placed on the brake lifting plate 123. Such a configuration not only simplifies the assembly process and improves the assembly efficiency, but also ensures the stability and accuracy of the integrated wheel hub motor module 20 during the assembly process.

[0053] In the embodiment of the present application, the motor lifting plate 122 and the brake lifting plate 123 have a height difference, and both are configured to be able to rise and fall relative to the first tray body 121 .

[0054] The height difference between the motor lifting plate 122 and the brake lifting plate 123 is adapted according to the actual size and assembly requirements of the hub motor assembly 21 and the brake assembly 24 in the integrated hub motor module 20, ensuring that the hub motor assembly 21 and the brake assembly 24 can be placed at appropriate heights respectively to avoid mutual interference, and also facilitate subsequent assembly and debugging work.

[0055] By adjusting the height of the motor lifting plate 122 and the brake lifting plate 123, the hub motor assembly 21 and the brake assembly 24 of different sizes and specifications can be adapted, so that the first tray structure 12 can be flexibly applied to a variety of vehicle models and configurations, thereby improving its versatility and practicality. During the assembly process, it is sometimes necessary to fine-tune or reposition the hub motor assembly 21 and the brake assembly 24. The lifting function makes this process easier and more flexible. The operator can achieve this goal by simply adjusting the height of the tray without the need for complicated disassembly and reinstallation work.

[0056] Furthermore, the second pallet structure 13 includes a second pallet body 131, and a plurality of steering knuckle brackets 132, a plurality of first suspension brackets 133 and a plurality of second suspension brackets 134 arranged on the second pallet body 131; the integrated drive suspension module 30 includes a suspension bracket 31, and a steering integrated assembly 32, a suspension assembly 33 and a lower control arm assembly 34 connected to the suspension bracket 31; the suspension bracket 31 is positioned and connected to the second pallet body 131 through the first suspension bracket 133 and a plurality of second suspension brackets 134, and the steering integrated assembly 32 is supported on the steering knuckle bracket 132.

[0057] The second pallet body 131 serves as the main body of the entire structure and provides a stable support platform to ensure the stability of the integrated drive suspension module 30 during assembly and transportation; the steering knuckle bracket 132 is used to support the steering integrated assembly 32 to ensure that it can be stably connected to the front wheel steering system of the vehicle; the first suspension bracket 133 and the second suspension bracket 134 are used together to support and position the suspension bracket 31, thereby firmly connecting the integrated drive suspension module 30 to the second pallet body 131. The first suspension bracket 133 and the second suspension bracket 134 have a height difference to provide support.

[0058] The suspension bracket 31 is the basic structure of the entire module. The suspension bracket 31 is connected to the second tray body 131 through the suspension bracket, and also supports other key components such as the steering integrated assembly 32, the suspension assembly 33 and the lower control arm assembly 34. The steering integrated assembly 32 realizes the steering function of the wheel, which is supported on the steering knuckle bracket 132 to ensure the stability and accuracy of the steering system; the suspension assembly 33 usually includes shock absorbers, springs and other components to absorb and disperse vibrations and shocks during the driving process of the vehicle; the lower control arm assembly 34 is an important part of the suspension system, which connects the wheel and the body. By adjusting its length and angle, the positioning parameters of the wheel, such as the camber angle and the toe angle, can be changed, thereby affecting the handling performance and stability of the vehicle.

[0059] During the assembly process, the suspension bracket 31 is accurately positioned and connected to the second tray body 131 through the first suspension bracket 133 and the second suspension bracket 134. At the same time, the steering integrated assembly 32 is stably supported on the steering knuckle bracket 132 to ensure the stability and accuracy of the steering system. This also simplifies the assembly process, improves assembly efficiency, and ensures the stability and accuracy of the integrated drive suspension module 30 during the assembly process.

[0060] The integrated drive suspension module 30 also includes a steering gear shock absorber 35; the suspension bracket 31 is L-shaped, including a vertical frame 311 and a horizontal frame 312, and the vertical frame 311 is connected to a plurality of extended mounting fulcrums T1, and the lower control arm assembly 34 and the steering gear shock absorber 35 are connected to the mounting fulcrum T1; the horizontal frame is connected to a mounting seat T2, and the suspension assembly 33 is installed on the mounting seat T2.

[0061] It can be understood that the integrated drive suspension module 30 is intended to further reduce vibration and noise during the steering process and improve the stability and accuracy of the steering system. The transverse frame 312 is connected to the vertical frame 311 to form an L-shaped overall structure. A plurality of mounting seats T2 are provided on the transverse frame 312 for mounting the suspension assembly 33, so that the suspension assembly 33 can be stably and accurately supported on the vehicle chassis and effectively absorb and disperse vibration and impact from the road surface; the design of the vertical frame 311 enables the lower control arm assembly 34 and the steering gear damper 35 and the suspension assembly 33 to form an adaptive height difference to adapt to the structural layout.

[0062] Furthermore, the steering integrated assembly 32 includes a steering rack 321 , a steering gear 322 and a ball pin 323 ; two ends of the steering gear 322 are connected to the steering gear 321 and the ball pin 323 , respectively.

[0063] The end of the first tray body 121 facing the second tray body 131 is provided with a first matching groove a1 and a protrusion a2, and the end of the second tray body 131 is provided with a second matching groove b1 and an alignment groove b2 corresponding to the protrusion a2. The first tray structure 121 and the second tray structure 131 slide close to each other, so that the end surface portion of the first tray body 121 facing the second tray body 131 is partially fitted, and the first matching groove a1 and the second matching groove b1 are combined to form a through hole, and the protrusion a2 is embedded in the alignment groove b2.

[0064] The first matching groove a1 and the second matching groove b1 can be accurately combined to form a through hole when the two slide close and fit together; the through hole can be round, square or other shapes, one of which can realize additional positioning and installation in the assembly process, and the other can also use a preset verification block to insert the through hole for process calibration to ensure that the relative position between the first tray body 121 and the second tray body 131 meets the requirements and avoid errors in the assembly process. The cooperation between the protrusion a2 and the alignment groove b2 plays a role in pre-positioning during the assembly process. Before the tray body starts to slide close, the protrusion a2 can first enter the alignment groove b2, thereby avoiding unnecessary rigid collision between the integrated hub motor module 20 and the integrated drive suspension module 30 during assembly; and when the protrusion a2 enters the alignment groove b2 to form a connecting force, it can also prevent the tray body from relative movement or separation when subjected to external force, thereby improving the stability of the entire assembly process.

[0065] In summary, the cooperation between the first mating groove a1 and the second mating groove b1, and between the protrusion a2 and the alignment groove b2 plays multiple roles in the assembly process of the pallet body, such as precise positioning, additional positioning installation, process calibration, pre-positioning and forming connection force, which not only improves the accuracy and reliability of assembly, but also protects related components from damage and improves the stability of the entire assembly process.

[0066] Furthermore, the steering angle module chassis assembly device 100 further includes a connecting rod assembly 40 , and the connecting rod assembly 40 includes an upper connecting rod assembly 41 , a lower connecting rod assembly 42 and a toe link 43 .

[0067] Among them, the integrated hub motor module 20 and the integrated drive suspension module 30 are allowed to be accurately moved to the preset positions after being placed on the pallet respectively; when the two modules arrive at the preset positions respectively, the next step is to connect the connecting rod assembly 40, and the upper connecting rod assembly 41, the lower connecting rod assembly 42 and the toe link 43 are precisely installed at different connection points between the integrated hub motor module 20 and the integrated drive suspension module 30 to ensure that the connecting rod group 40 can correctly transmit force and movement, thereby achieving stability and controllability of the chassis.

[0068] This modular and independent link design not only simplifies the assembly process, but also improves assembly efficiency. Because each link is installed independently, it can be more easily adjusted and calibrated without the need for complex adjustments to the entire chassis system. In addition, this design makes it easier and faster to repair and replace parts, and the independent single link also facilitates adjustment operations and improves assembly efficiency.

[0069] The second aspect of the present application further provides a steering angle module chassis assembly method, which is applied to the above-mentioned steering angle module chassis assembly device 100, comprising:

[0070] Step S10, controlling the first tray structure 12 and the second tray structure 13 to move away from each other by a preset distance;

[0071] Step S20, assembling the wheel hub motor assembly 21, the motor mounting bracket 22, the sliding column assembly 23 and the brake assembly 24 to form the integrated wheel hub motor module 20 and positioning the integrated wheel hub motor module 20 at the first tray structure;

[0072] Step S30, assembling the suspension bracket 31 and the steering integrated assembly 32, the suspension assembly 33, the steering gear damper 35 and the lower control arm assembly 34 connected to the suspension bracket 31 to form an integrated drive suspension module 30 and positioning the integrated drive suspension module 30 at the second tray structure 13;

[0073] Step S40, control the first tray structure 12 and the second tray structure 13 to approach each other so that the integrated hub motor module 20 and the integrated drive suspension module 30 reach the preset positions respectively, and then install the connecting rod assembly 40 between the integrated hub motor module 20 and the integrated drive suspension module 30, the connecting rod assembly 40 includes an upper connecting rod assembly 41, a lower connecting rod assembly 42 and a toe link 43.

[0074] First, the positions of the first tray structure 12 and the second tray structure 13 are precisely adjusted through the control system so that a preset spacing is maintained between the two to facilitate subsequent assembly operations; this spacing should ensure that there is enough space for the installation and adjustment of components during the assembly process. While the second tray structure 13 is kept away, the first part of the integrated drive suspension module 30 is assembled on the first tray structure 12, which includes accurately installing key components such as the wheel hub motor assembly 21, the motor mounting bracket 22, the sliding column assembly 23 and the brake assembly 24 in place according to the design requirements to form a preliminary integrated drive suspension module 30 structure. Then, the second part of the integrated drive suspension module 30 is assembled on the first tray structure 12, including installing the suspension bracket 31, and connecting the steering integrated assembly 32, the suspension assembly 33, the steering gear damper and the lower control arm assembly 34 on the suspension bracket 31.

[0075] Finally, the control system precisely controls the movement of the first tray structure 12 and the second tray structure 13 so that they gradually approach and finally reach the preset position; in this process, the precise positioning between the integrated wheel hub motor module 20 and the integrated drive suspension module 30 is ensured, and then the upper link assembly 41, the lower link assembly 42 and the toe link 43 are installed to complete the assembly.

[0076] By subassembling the corner modules into two parts, the integrated wheel hub motor module 20 and the integrated drive suspension module 30, according to their positionability with the pallet, the present application significantly optimizes the assembly process: the subassembly method not only leaves a lot of operating space margin, facilitating precise operation and adjustment, but also effectively reduces interference and conflict during the assembly process, thereby greatly improving assembly efficiency. In addition, the subassembly corner modules are easier to manage and store, further improving the overall operating efficiency of the production line.

[0077] According to the above, the integrated hub motor module 20 and the integrated drive suspension module 30 after assembly and the corresponding tray are all provided with positioning devices, and this design ensures high precision during the assembly process. The positioning device can accurately guide the assembly position of each component, effectively avoiding assembly errors caused by position deviation; at the same time, the positioning device also provides stable support, making it difficult for the components to move or deform during the assembly process, thereby further improving the assembly accuracy.

[0078] The integrated hub motor module 20 and the integrated drive suspension module 30 are assembled first, and then the connecting rod assembly 40 of the associated suspension control is installed after the two are positioned and docked with the pallet. The independent single connecting rod is also easy to install and adjust, so as to significantly reduce the duplication of labor and errors in the assembly process and improve the assembly efficiency.

[0079] refer to Figures 11 to 14 , further in step S20, assembling the wheel hub motor assembly 21, the motor mounting bracket 22, the sliding column assembly 23 and the brake assembly 24 to form an integrated drive suspension module 30 and positioning the integrated drive suspension module 30 at the first tray structure 12, including:

[0080] Step S21, installing the motor mounting bracket 22 on one side of the wheel hub motor assembly 21, and installing the brake assembly 24 on the other side of the wheel hub motor assembly 21;

[0081] Step S22 , after the hub motor assembly 21 and the brake are positioned at the first tray structure 12 , the strut assembly 23 is assembled at the motor mounting bracket 22 .

[0082] The motor mounting bracket 22 is accurately mounted on one side of the wheel hub motor assembly 21, and then the brake assembly 24 is mounted on the other side of the wheel hub motor assembly 21; specifically, the brake assembly 24 and the wheel hub motor assembly 21 are mounted through the shaft hole to ensure the effectiveness and reliability of the braking effect. At the same time, it is also necessary to ensure that the brake assembly 24 and the wheel hub motor assembly 21 are firmly connected to avoid loosening or falling off during driving.

[0083] Assemble the slide strut assembly 23 at the motor mounting bracket 22, accurately install the slide strut assembly 23 on the motor mounting bracket 22, and ensure the matching accuracy between it and the hub motor assembly 21; position it at the first tray structure 12 through the hub motor assembly 21 and the brake assembly 24; after the slide strut assembly 23 is assembled, use the first tray structure 12 to position the integrated drive suspension module 30.

[0084] refer to Figures 15 to 18 In step S30, the suspension bracket 31 and the steering integrated assembly 32, the suspension assembly 33, the steering gear damper and the lower control arm assembly 34 connected to the suspension bracket 31 are assembled to form an integrated drive suspension module 30 and the integrated drive suspension module 30 is positioned at the first tray structure 12, including:

[0085] Step S31, installing a steering gear and a ball pin at both ends of the bogie respectively;

[0086] Step S32, installing the lower control arm assembly 34 and the steering gear damper on the vertical frame 311 of the suspension bracket 31, and installing the suspension assembly 33 on the transverse frame 312;

[0087] Step S33 , assembling the bogie equipped with the steering gear and the ball pin onto the suspension bracket 31 , and positioning the suspension bracket 31 and the bogie at the first tray structure 12 .

[0088] First, the steering gear and ball pin are installed at both ends of the bogie. As the core component of the steering system, the installation position and accuracy of the steering gear have an important impact on the vehicle's handling and safety. The ball pin is used to connect the steering gear and the steering knuckle to ensure smooth and accurate steering movement. The steering gear and ball pin can be installed on the bogie in independent processes to improve assembly efficiency.

[0089] The lower control arm assembly 34 and the steering gear damper are installed on the vertical frame 311 of the suspension bracket 31, and the suspension assembly 33 is installed on the transverse frame 312 of the suspension bracket 31; similarly, it can also be used as an independent process.

[0090] The bogie equipped with the steering gear and the ball pin is assembled on the suspension bracket 31. This step requires the bogie to be precisely docked and fixed with the suspension bracket 31 to ensure that the relative position and angle between them meet the design requirements; then the integrated drive suspension module 30 is precisely positioned and fixed by the first tray structure 12 so that it can be precisely docked and assembled with other components later.

[0091] In summary, this design breaks down complex assembly tasks into smaller, more manageable modules. Each module can be produced and assembled independently, greatly simplifying the overall assembly process; since two modules can be produced and assembled at the same time, this significantly reduces waiting time and significantly improves overall production efficiency.

[0092] Compared with the up-and-down installation of the subframe in the prior art, the horizontal split installation adopted in the present application can provide a larger operating space margin, making adjustment and positioning during the assembly process easier, reducing the difficulty of assembly due to space limitations, and the errors caused by the weight of the attached frame itself: the split installation also helps to reduce the deviation factors in the assembly process. Since each module is independently produced and assembled, quality control can be carried out at each stage, thereby reducing the possibility of cumulative errors.

[0093] In another aspect of the present application, a vehicle is provided, the vehicle comprising the above-mentioned steering angle module chassis assembly device 100; obviously, the vehicle has all the beneficial effects brought by the above-mentioned steering angle module chassis assembly device 100, such as better assembly accuracy and assembly efficiency, etc., which will not be described one by one here.

[0094] The various technical features described above can be combined arbitrarily. Although all possible combinations of these technical features are not described, any combination of these technical features should be considered to be covered by this specification as long as there is no contradiction in such combination.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still adjust the technical solutions described in the aforementioned embodiments, or replace some or all of the embedded technical features with equivalent ones. However, these adjustments or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A steering angle module chassis assembly device, characterized in that: Includes tooling components, integrated wheel hub motor module and integrated drive suspension module; The tooling assembly includes a slide rail base, and a first tray structure and a second tray structure arranged on the slide rail base; Wherein, the integrated hub motor module can be positioned at the first tray structure; the integrated drive suspension module can be positioned at the second tray structure; The first tray structure and the second tray structure can be brought close to each other through the slide rail base to assemble and integrate the wheel hub motor module and the integrated drive suspension module.

2. The steering angle module chassis assembly device according to claim 1, characterized in that: The first tray structure includes a first tray body, and a motor lifting plate and a brake lifting plate arranged on the first tray body; The integrated wheel hub motor module comprises a wheel hub motor assembly, a motor mounting bracket, a sliding column assembly and a brake assembly. The motor mounting bracket is mounted on one side of the wheel hub motor assembly, and the brake assembly is mounted on the other side. The sliding column assembly is connected to the motor mounting bracket. The wheel hub motor assembly can be placed on the motor lifting plate, and the brake assembly can be placed on the brake lifting plate; Wherein, the motor lifting plate and the brake lifting plate have a height difference, and are both configured to be able to rise and fall relative to the first tray body.

3. The steering angle module chassis assembly device according to claim 2, characterized in that: The second pallet structure includes a second pallet body, and a plurality of steering knuckle brackets, a plurality of first suspension brackets and a plurality of second suspension brackets arranged on the second pallet body; The integrated drive suspension module includes a suspension bracket, and a steering integrated assembly, a suspension assembly and a lower control arm assembly connected to the suspension bracket; The suspension bracket is positioned and connected to the second tray body through the first suspension bracket and a plurality of second suspension brackets, and the steering integrated assembly is supported by the steering knuckle bracket.

4. The steering angle module chassis assembly device according to claim 3, characterized in that: The integrated drive suspension module also includes a steering gear damper; The suspension bracket includes a vertical frame and a transverse frame. The vertical frame is connected to a plurality of extended mounting fulcrums, and the lower control arm assembly and the steering gear shock absorber are connected to the mounting fulcrums; the transverse frame is connected to a mounting seat, and the suspension assembly is mounted on the mounting seat.

5. The steering angle module chassis assembly device according to claim 4, characterized in that: The steering integrated assembly comprises a bogie, a steering gear and a ball pin; two ends of the steering gear are respectively connected to the steering gear and the ball pin.

6. The steering angle module chassis assembly device according to any one of claims 3 to 5, characterized in that: The first pallet body is provided with a first mating groove and a protrusion at the end portion facing the second pallet body, and the second pallet body is provided with a second mating groove and an alignment groove corresponding to the protrusion at the end portion, and the first pallet structure and the second pallet structure are slid close to each other so that the end surfaces of the first pallet structure and the second pallet structure are partially fitted, and the first mating groove and the second mating groove are combined to form a through hole, and the protrusion is embedded in the alignment groove.

7. The steering angle module chassis assembly device according to any one of claims 3 to 6, characterized in that: The steering angle module chassis assembly device further includes a connecting rod assembly, and the connecting rod assembly includes an upper connecting rod assembly, a lower connecting rod assembly and a toe link; After the first tray structure and the second tray structure are respectively docked to preset positions through the slide rail base, the upper link assembly, the lower link assembly and the toe link are respectively connected to different connection points between the integrated hub motor module and the integrated drive suspension module.

8. A steering angle module chassis assembly method, characterized in that: include: Controlling the first tray structure and the second tray structure to move away from each other by a preset distance; Assembling a wheel hub motor assembly, a motor mounting bracket, a sliding column assembly, and a brake assembly to form the integrated wheel hub motor module and positioning the integrated wheel hub motor module at the first tray structure; Assembling a suspension bracket and a steering integrated assembly, a suspension assembly, a steering gear damper and a lower control arm assembly connected to the suspension bracket to form an integrated drive suspension module and positioning the integrated drive suspension module at the second tray structure; After the first tray structure and the second tray structure are close to each other so that the integrated wheel hub motor module and the integrated drive suspension module respectively reach preset positions, a connecting rod assembly is installed between the integrated wheel hub motor module and the integrated drive suspension module, and the connecting rod assembly includes an upper connecting rod assembly, a lower connecting rod assembly and a toe link.

9. The steering angle module chassis assembly device according to claim 8, characterized in that: The assembly of the wheel hub motor assembly, the motor mounting bracket, the sliding column assembly and the brake assembly to form the integrated wheel hub motor module and positioning the integrated wheel hub motor module at the first tray structure includes: Installing the motor mounting bracket on one side of the wheel hub motor assembly, and installing the brake assembly on the other side of the wheel hub motor assembly; After the wheel hub motor assembly and the brake are positioned at the first tray structure, the slide column assembly is assembled at the motor mounting bracket.

10. The steering angle module chassis assembly device according to claim 8, characterized in that: The assembly of the suspension bracket and the steering integrated assembly, the suspension assembly, the steering gear damper and the lower control arm assembly connected to the suspension bracket to form an integrated drive suspension module and position the integrated drive suspension module at the second tray structure includes: A steering gear and a ball pin are installed at both ends of the bogie; Installing a lower control arm assembly and a steering gear damper on the vertical frame of the suspension bracket, and installing the suspension assembly on the transverse frame; After the bogie equipped with the steering gear and the ball pin is assembled on the suspension bracket, the suspension bracket and the bogie are positioned at the second tray structure.

Images