Rear axle turnover device and method

Abstract

The invention provides a rear axle turnover device and method, and relates to the technical field of whole vehicle assembly. The rear axle turnover device comprises a rear axle support and a rear axle turnover device, wherein the rear axle support is used for bearing a rear axle to be turned over; the number of the overturning executing mechanisms is two, the two overturning executing mechanisms are located on the two sides of the rear axle support correspondingly in the first preset direction, each overturning executing mechanism at least comprises a clamping assembly and an overturning driving part, each clamping assembly comprises a plurality of clamping sleeves, the clamping sleeves are used for containing at least part of rear axle bolts of the rear axle to be overturned, and the overturning driving parts are arranged on the clamping sleeves; the overturning driving piece can drive the clamping assembly to rotate so as to drive the rear axle to be overturned to overturn. According to the technical scheme, the frequency and intensity of manual operation can be reduced, meanwhile, the risk that the rear axle is damaged due to misoperation is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of whole vehicle assembly, and in particular to a rear axle flipping device and method. Background Art

[0002] During the subassembly process of the rear axle of a commercial vehicle, the rear axle needs to be flipped and adjusted to meet the assembly and lifting requirements.

[0003] The prior art discloses a multi-type axle flipping device and a method of using the same, which relates to the technical field of automobile axle flipping devices, including a flipping mechanism, an adjusting mechanism installed on the upper part of the flipping mechanism, a clamping mechanism installed on the surface of the adjusting mechanism, and the flipping mechanism including a limit plate, a driving plate fixedly connected to one side of the limit plate, and a No. 1 connecting plate fixedly connected to one side of the driving plate. In the present invention, according to the length of the axle to be processed as required, a No. 1 adjusting screw is driven to rotate by a No. 2 reduction motor, and under the rotation of the No. 1 adjusting screw, two sets of threads in opposite directions on its surface drive the No. 2 slider to slide along the No. 2 slide rail, thereby adjusting the spacing between the two No. 3 connecting plates, and axles of different types or sizes can be limited and fixed.

[0004] The flipping device in the prior art has the following problems: 1) The clamping and fixing method for the rear axle is unstable, and the surface of the axle housing is easily damaged during the flipping process; 2) There is a lack of a protection device when the clamping mechanism fails.

[0005] Currently, no effective solution has been proposed for the above-mentioned technical problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a rear axle flipping device and method to solve the problems of unstable clamping, inconvenient adjustment and lack of protection of the rear axle flipping in the prior art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a rear axle flipping device is provided, comprising: a rear axle bracket, the rear axle bracket is used to support the rear axle to be flipped; a flipping actuator, there are two flipping actuators, along a first preset direction, the two flipping actuators are respectively located on both sides of the rear axle bracket, the flipping actuator at least comprises a clamping assembly and a flipping drive member, the clamping assembly comprises a plurality of clamping sleeves, the clamping sleeves are used to accommodate at least part of the rear axle bolts of the rear axle to be flipped, and the flipping drive member can drive the clamping assembly to rotate, thereby driving the rear axle to be flipped to flip.

[0008] Furthermore, the clamping assembly also includes a rotating chassis, the axial direction of which extends along a first preset direction, a plurality of clamping sleeves are arranged on the rotating chassis, and the plurality of clamping sleeves are movably connected to the rotating chassis to adjust the position of each clamping sleeve on the rotating chassis, wherein the flipping drive member is connected to the rotating chassis, and the flipping drive member drives the rotating chassis to rotate, thereby driving the clamping sleeve to rotate.

[0009] Furthermore, the distance between the tilting actuator and the rear axle bracket is adjustable.

[0010] Furthermore, the clamping assembly is movably arranged along a second preset direction, and / or the clamping assembly is movably arranged along a third preset direction, wherein the first preset direction is the length direction of the rear axle, the second preset direction is the thickness direction of the rear axle, and the third preset direction is the width direction of the rear axle.

[0011] Furthermore, the flip actuator also includes: a movable base, which is movably arranged along a first preset direction to adjust the distance between the flip actuator and the rear axle bracket; a support assembly, on which a clamping assembly and a flip driving component are arranged, the support assembly is connected to the movable base, and the support assembly is movably arranged along a second preset direction to adjust the distance between the support assembly and the movable base.

[0012] Furthermore, the supporting assembly includes: a first supporting seat, which is arranged on a movable base and is movably arranged along a second preset direction to adjust the distance between the first supporting seat and the movable base; a second supporting seat, which is arranged on the first supporting seat and is movably arranged relative to the first supporting seat along a third preset direction, and a rotating chassis is arranged on the second supporting seat, which is rotatably connected to the second supporting seat; and a flip driving member is arranged on any one of the first supporting seat and the second supporting seat.

[0013] Furthermore, a pressure detection element is provided at the bottom of the clamping sleeve.

[0014] Furthermore, a plurality of movable spaces are provided on the rotating chassis, and the plurality of movable spaces are arranged in one-to-one correspondence with the plurality of clamping sleeves. The clamping sleeves can be movably arranged in the movable spaces to adjust the positions of the clamping sleeves on the rotating chassis.

[0015] Furthermore, the activity space is a strip hole, and the clamping assembly also includes a plurality of sleeve adjustment assemblies, and the plurality of sleeve adjustment assemblies are arranged in a one-to-one correspondence with the plurality of clamping sleeves. The sleeve adjustment assembly at least includes an electric push rod and an adjustment bracket connected to the output end of the electric push rod, and the adjustment bracket is connected to the bottom of the clamping sleeve. The open end of the clamping sleeve extends through the strip hole to the side where the rear axle to be flipped is located. The electric push rod can drive the adjustment bracket to move, thereby driving the clamping sleeve to move in the activity space, thereby adjusting the position of the clamping sleeve on the rotating chassis.

[0016] According to another aspect of the present invention, a rear axle flipping method is provided, and the method is performed based on the above-mentioned rear axle flipping device, and the method comprises the following steps: placing the rear axle to be flipped on the rear axle bracket; adjusting the flip actuator to a pre-positioning position, which is a position close to the rear axle to be flipped; adjusting the clamping assembly to a pre-clamping state, in which each clamping sleeve is arranged corresponding to the rear axle bolt of the rear axle to be flipped; driving the flip actuator to move along a first preset direction toward the rear axle to be flipped until the clamping sleeve clamps the rear axle bolt; starting the flip driving member so that the flip driving member drives the clamping assembly to rotate, thereby driving the rear axle to be flipped to flip.

[0017] By applying the technical solution of the present invention, by setting a plurality of clamping sleeves on the clamping assembly, during the rear axle flipping execution process, the plurality of clamping sleeves can identify and adjust their positions corresponding to the rear axle bolts. After the positions are aligned, the flipping actuator drives the clamping assembly to clamp and fix the rear axle. In this way, the multi-point clamping and fixing clamping method can more effectively fix the rear axle and ensure the stability of the rear axle during the flipping process. After the rear axle is clamped, the flipping actuator drives the clamping assembly to rotate through the flipping driving member to realize the automatic rear axle flipping, which is convenient for the subsequent assembly and hoisting requirements of the rear axle, reduces the frequency and intensity of manual operation, and reduces the risk of damage to the rear axle due to improper operation, thereby improving production efficiency. In addition, the rear axle bracket arranged between the two flipping actuators can be used as a protective device when the clamping assembly fails, providing rear axle support force to avoid damage to the rear axle when the clamping fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of a first embodiment of a rear axle tilting device according to the present invention is shown;

[0020] Figure 2 A schematic structural diagram of a second embodiment of a rear axle flipping device according to the present invention is shown;

[0021] Figure 3 A schematic structural diagram of a third embodiment of a rear axle flipping device according to the present invention is shown;

[0022] Figure 4 A schematic structural diagram of a fourth embodiment of a rear axle flipping device according to the present invention is shown;

[0023] Figure 5 It shows a logical structure diagram of the rear axle flipping device according to the present invention;

[0024] Figure 6 It shows a working flow chart of the rear axle flipping device according to the present invention;

[0025] Figure 7 The following is a schematic diagram of the process flow of the rear axle tilting device according to the present invention.

[0026] The above drawings include the following reference numerals:

[0027] 1. Rear axle bracket;

[0028] 2. Flip the actuator;

[0029] 21. Clamping assembly;

[0030] 211, clamping sleeve;

[0031] 212, rotating chassis;

[0032] 2120, activity space;

[0033] 213, sleeve adjustment assembly;

[0034] 2131, electric push rod;

[0035] 2132, adjusting bracket;

[0036] 214. Camera;

[0037] 215. Rotating bracket;

[0038] 22. Turning drive member;

[0039] 23. Mobile base;

[0040] 24. Support assembly;

[0041] 241, first support seat;

[0042] 242, second support seat;

[0043] 243, slide rail;

[0044] 244. Slider. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0049] In order to facilitate the description of the technical effect of the technical solution of the present application, the prior art is introduced as follows: The prior art discloses a multi-model axle flipping device and a method of using the same, which relates to the technical field of automobile axle flipping devices, including a flipping mechanism, an adjusting mechanism is installed on the upper part of the flipping mechanism, a clamping mechanism is installed on the surface of the adjusting mechanism, and the flipping mechanism includes a limit plate, a driving plate is fixedly connected to one side of the limit plate, and a No. 1 connecting plate is fixedly connected to one side of the driving plate. In the present invention, according to the length of the axle to be processed, a No. 1 adjusting screw is driven to rotate by a No. 2 reduction motor, and under the rotation of the No. 1 adjusting screw, two sets of threads in opposite directions on its surface drive the No. 2 slider to slide along the No. 2 slide rail, thereby adjusting the spacing between the two No. 3 connecting plates, and axles of different types or sizes can be limited and fixed.

[0050] The flipping device in the prior art has the following problems: 1) The clamping and fixing method of the rear axle is unstable, and the surface of the bridge housing is easily damaged during the flipping process; 2) There is a lack of protection device when the clamping mechanism fails; 3) It is inconvenient to adjust when flipping different models of rear axles.

[0051] Combination Figures 1 to 7 As shown, according to a specific embodiment of the present application, a rear axle flipping device is provided.

[0052] Specifically, Figure 1 As shown, the rear axle flipping device includes a rear axle bracket 1 and a flipping actuator 2. The rear axle bracket 1 is used to support the rear axle to be flipped. There are two flipping actuators 2. Along a first preset direction, the two flipping actuators 2 are respectively located on both sides of the rear axle bracket 1. The flipping actuator 2 includes at least a clamping assembly 21 and a flipping drive 22. The clamping assembly 21 includes a plurality of clamping sleeves 211. The clamping sleeves 211 are used to accommodate at least part of the rear axle bolts of the rear axle to be flipped. The flipping drive 22 can drive the clamping assembly 21 to rotate, thereby driving the rear axle to be flipped to flip.

[0053] By applying the technical solution of this embodiment, by setting a plurality of clamping sleeves 211 on the clamping assembly 21, during the rear axle flipping execution process, the plurality of clamping sleeves 211 can identify and adjust their positions corresponding to the rear axle bolts. After the positions are aligned, the flip actuator 2 drives the clamping assembly 21 to clamp and fix the rear axle. In this way, the clamping method of multi-point clamping and fixing can more effectively fix the rear axle and ensure the stability of the rear axle during the flipping process. After clamping the rear axle, the flip actuator 2 drives the clamping assembly 21 to rotate through the flip driving member 22 to realize the automatic rear axle flipping, which is convenient for the subsequent assembly and hoisting requirements of the rear axle, reduces the frequency and intensity of manual operation, and reduces the risk of damage to the rear axle due to improper operation, thereby improving production efficiency. In addition, the rear axle bracket 1 arranged between the two flip actuators 2 can be used as a protective device when the clamping assembly 21 fails, providing a rear axle support force to avoid damage to the rear axle when the clamping fails.

[0054] It should be noted that the first preset direction is the direction in which the flip actuator 2 is relatively arranged, and is also the direction in which the length of the rear axle main structure is distributed. By flipping the rear axle along the first preset direction, the torque can be minimized, thereby saving the power required to flip the rear axle, and at the same time, a fast and stable rear axle flipping operation can be achieved. In this embodiment, there are multiple rear axle brackets 1, and the multiple rear axle brackets 1 are arranged at intervals along the first preset direction to improve the stability of the vehicle rear axle support.

[0055] In one embodiment of the present application, the flip driving component 22 can be a driving component such as a driving motor.

[0056] Specifically, Figure 2 , Figure 3As shown, the clamping assembly 21 also includes a rotating chassis 212, the axial direction of the rotating chassis 212 extends along a first preset direction, a plurality of clamping sleeves 211 are arranged on the rotating chassis 212, and the plurality of clamping sleeves 211 are movably connected to the rotating chassis 212 to adjust the position of each clamping sleeve 211 on the rotating chassis 212, wherein the flipping driving member 22 is connected to the rotating chassis 212, and the flipping driving member 22 drives the rotating chassis 212 to rotate, thereby driving the clamping sleeve 211 to rotate. Multiple clamping sleeves 211 are extended along a first preset direction, that is, the extension direction of the multiple clamping sleeves 211 is the same as the axial direction of the rotating chassis 212, so as to ensure that the multiple clamping sleeves 211 can rotate together with the rotating chassis 212. When the flipping drive 22 drives the clamping assembly 21 to rotate, the rotating chassis 212 rotates together with the clamping assembly 21, driving the multiple clamping sleeves 211 to rotate, thereby realizing the flipping operation of the rear axle. The multiple clamping sleeves 211 are clamped along the axial extension holes of the rotating chassis 212 to clamp the rear axle bolts. Through the adjustable arrangement of the multiple clamping sleeves 211, the clamping assembly 21 can adapt to vehicle rear axles of different sizes and models, thereby improving the practicality and flexibility of the rear axle flipping device.

[0057] Furthermore, the distance between the tilt actuator 2 and the rear axle support 1 is adjustable. Figure 1 , Figure 2 As shown, the two flip actuators 2 are arranged opposite to each other, and the bottoms of the two flip actuators 2 can be arranged relatively close to or far away from each other. The two flip actuators 2 are connected to the control system by wired or wireless connection according to the specific working conditions. The control system controls the relative movement of the two flip actuators 2 to achieve adjustable distance between the rear axle bracket 1, that is, the adjustable distance from the rear axle is achieved, so that the rear axle can be clamped close and released away. When the multiple clamping sleeves 211 of the flip actuator 2 are adjusted to the positions corresponding to the rear axle bolts, the two flip actuators 2 move relatively close to clamp the rear axle. After the clamping is confirmed, the control system controls the flip actuator 2 to stop moving to ensure the stability of the clamping state of the rear axle.

[0058] In order to facilitate determination of whether the clamping sleeve 211 has clamped the rear axle bolt, a detection component may be provided to perform corresponding detection. The detection component may be a sensor element, an image detection component or other detection components.

[0059] Specifically, the clamping assembly 21 is movably arranged along the second preset direction, and / or, the clamping assembly 21 is movably arranged along the third preset direction, wherein the first preset direction is the length direction of the rear axle, the second preset direction is the thickness direction of the rear axle, and the third preset direction is the width direction of the rear axle. The clamping assembly 21 is arranged to be movable in three-dimensional directions along the first preset direction, the second preset direction, and the third preset direction, so that adjustment can be achieved at various positions, so that the clamping assembly 21 can be more accurately aligned with the rear axle bolts, and can be applied to the situation where the rear axle size changes greatly, thereby improving the practicality of the equipment and the accuracy of the operation. The multi-directional adjustable setting of the clamping assembly 21 can not only adapt to the size changes of the rear axle in length, thickness, and width, but also can ensure accurate clamping of the rear axle bolts after simply fine-tuning the position of the clamping assembly 21 when the rear axle is slightly deformed or worn during the production process, further improving the practicality of the equipment, reducing the failure of flipping caused by the mismatch between the ruler and the equipment, and improving production efficiency.

[0060] It should be noted that the second preset direction is the thickness direction of the rear axle, that is, the height direction of the rear axle flipping device, and the third preset direction is the width direction of the rear axle. When the flipping actuator 2 is in the process of clamping the rear axle, based on the all-round movable adjustment function of the clamping assembly 21, the calibration and positioning of each clamping sleeve 211 and the corresponding rear axle bolt can be achieved, thereby achieving stable clamping of the rear axle.

[0061] Furthermore, if Figure 1 , Figure 2 As shown, the flip actuator 2 also includes a movable base 23 and a support assembly 24. The movable base 23 is movably arranged along a first preset direction to adjust the distance between the flip actuator 2 and the rear axle bracket 1; a clamping assembly 21 and a flip driving member 22 are arranged on the support assembly 24, and the support assembly 24 is connected to the movable base 23, and the support assembly 24 is movably arranged along a second preset direction to adjust the distance between the support assembly 24 and the movable base 23.

[0062] The movable base 23 can receive the signal of the control system to drive the flip actuator 2 to move along the first preset direction. The support assembly 24 is provided with a lifting mechanism, which can drive the flip actuator 2 to move along the second preset direction. The movable base 23 can realize the calibration of the clamping assembly 21 with the rear axle bolts in the height direction of the rear axle, and the support assembly 24 can realize the calibration of the clamping assembly 21 with the rear axle bolts in the width direction of the rear axle. On this basis, combined with the movement of the flip actuator 2 along the first preset direction, the flip actuator 2 can realize all-round calibration, positioning and clamping of the rear axle, so that the equipment can be more flexibly adapted to the flipping requirements of different rear axles, thereby improving the practicability and flexibility of the equipment, while reducing the equipment debugging time and operation delay time, thereby improving efficiency.

[0063] It should be noted that the support assembly 24 can adjust the distance between it and the mobile base 23 through a lifting mechanism. The lifting mechanism can be a driving component such as a hydraulic cylinder or a lift. The mobile base 23 can also be provided with a driving component, which drives the mobile base 23 to move along the first preset direction by receiving instructions sent by the control system.

[0064] Those skilled in the art should understand that the flip actuator 2, the control system, and the sensor element can use wireless or wired connection methods for data transmission according to different working scenarios. Specifically, the above-mentioned lifting mechanism, drive motor and other driving components and the flip drive component 22 can transmit signals with the same control system and be controlled by the control system to achieve calibration, positioning and clamping of the rear axle by the flip actuator 2.

[0065] Specifically, Figure 2 , Figure 3 As shown, the support assembly 24 includes a first support seat 241 and a second support seat 242. The first support seat 241 is arranged on the movable base 23, and the first support seat 241 is movably arranged along a second preset direction to adjust the distance between the first support seat 241 and the movable base 23; the second support seat 242 is arranged on the first support seat 241, and the second support seat 242 is movably arranged relative to the first support seat 241 along a third preset direction, and a rotating chassis 212 is arranged on the second support seat 242, and the rotating chassis 212 is rotatably connected to the second support seat 242; the flip driving member 22 is arranged on any one of the first support seat 241 and the second support seat 242.

[0066] By dividing the support assembly 24 into a first support seat 241 and a second support seat 242, the first support seat 241 can drive the flip actuator 2 to move along the second preset direction, and the second support seat 242 can drive the flip actuator 2 to move along the third preset direction. The combination of the first support seat 241 and the second support seat 242 can realize the full-scale calibration of the flip actuator 2 to the rear axle. On this basis, after fine-tuning the clamping sleeve 211, the clamping sleeve 211 and the rear axle bolt are accurately calibrated to facilitate the clamping of the rear axle. At the same time, a rotating bracket 215 is provided on the second support seat 242, and a rotating chassis 212 is provided on the rotating bracket 215. The rotating chassis 212 can rotate on the rotating bracket 215 along its own circumference, thereby driving the clamping sleeve 211 and the rear axle to rotate to realize the flipping operation of the rear axle.

[0067] In one embodiment of the present application, it also includes a slide rail 243 and a slider 244. The slide rail 243 is arranged on the second support seat 242 along the third preset direction. The bottom end of the slider 244 is arranged on the slide rail 243, and the slider 244 can slide along the slide rail 243. The top end of the slider 244 is connected to the flip actuator 2. The sliding of the slider 244 can drive the flip actuator 2 to move along the third preset direction to realize the calibration positioning of the flip actuator 2 on the rear axle along the third preset direction.

[0068] Furthermore, a pressure detection element is provided at the bottom of the clamping sleeve 211. The pressure detection element is a pressure sensor, which can monitor the clamping force of the rear axle in real time and upload the real-time monitoring data to the terminal for analysis, thereby avoiding damage to the rear axle or failure to flip due to clamping too tight or too loose, further improving the stability and reliability of the flipping process, and at the same time, through monitoring data, ensuring stable and reliable flipping without damaging the rear axle, reducing rework and additional costs caused by rear axle damage, and improving the automation level of the production line.

[0069] Furthermore, if Figure 4 As shown, a plurality of activity spaces 2120 are provided on the rotating chassis 212, and the plurality of activity spaces 2120 are arranged in one-to-one correspondence with the plurality of clamping sleeves 211, and the clamping sleeves 211 are movably arranged in the activity spaces 2120 to adjust the position of the clamping sleeves 211 on the rotating chassis 212. The arrangement of the plurality of activity spaces 2120 realizes the mobility of the clamping sleeves 211, and thus realizes the adjustment of rear axles of different sizes, so as to ensure that the clamping sleeves 211 can be aligned with the rear axle bolts to ensure the stability of the clamping of the rear axle, and also allows the clamping assembly 21 to adjust slight vibrations or misalignments during the clamping or flipping operation of the rear axle, so as to avoid damage to the rear axle in this process, and at the same time, such an arrangement also makes the position adjustment of the clamping sleeves 211 more convenient, thereby improving the operation efficiency.

[0070] Specifically, the activity space 2120 is a strip hole, and the clamping assembly 21 also includes a plurality of sleeve adjustment assemblies 213. The plurality of sleeve adjustment assemblies 213 are arranged in a one-to-one correspondence with the plurality of clamping sleeves 211. The sleeve adjustment assembly 213 at least includes an electric push rod 2131 and an adjustment bracket 2132 connected to the output end of the electric push rod 2131. The adjustment bracket 2132 is connected to the bottom of the clamping sleeve 211. The open end of the clamping sleeve 211 extends through the strip hole to the side where the rear axle to be flipped is located. The electric push rod 2131 can drive the adjustment bracket 2132 to move, thereby driving the clamping sleeve 211 to move in the activity space 2120, thereby adjusting the position of the clamping sleeve 211 on the rotating chassis 212. The sleeve adjustment assembly 213 adjusts the adjustment bracket 2132 through the electric push rod 2131, and the adjustment bracket 2132 drives the clamping sleeve 211 to move in the activity space 2120, so as to align the position of the clamping sleeve 211 with the rear axle bolt, which is convenient for the next step of clamping and flipping the rear axle.

[0071] It should be noted that the activity space 2120 can also be an arc-shaped hole distributed along the circumference of the rotating chassis 212. A camera 214 is also provided on the axial center line of the rotating chassis 212. The camera 214 is electrically connected to the sleeve adjustment assembly 213. The camera 214 can collect the position of the rear axle bolt in real time and feed it back to the sleeve adjustment assembly 213. The sleeve adjustment assembly 213 controls the electric push rod 2131 to push the adjustment bracket 2132 to a position relative to the corresponding rear axle bolt according to the position of the rear axle bolt, so that the clamping sleeve 211 is aligned with the rear axle bolt.

[0072] In this embodiment, the camera 214 may be a 3D vision camera to locate the positions of the rear axle and the rear axle bolts.

[0073] According to another specific embodiment of the present application, a rear axle flipping method is also provided, and the method is performed based on the rear axle flipping device in the above-mentioned embodiment, and the method includes the following steps: placing the rear axle to be flipped on the rear axle bracket 1; adjusting the flip actuator 2 to a pre-positioning position, and the pre-positioning position is a position close to the rear axle to be flipped; adjusting the clamping assembly 21 to a pre-clamping state, in which each clamping sleeve 211 is arranged corresponding to the rear axle bolt of the rear axle to be flipped; driving the flip actuator 2 to move along a first preset direction toward the rear axle to be flipped until the clamping sleeve 211 clamps the rear axle bolt; starting the flip driving member 22, so that the flip driving member 22 drives the clamping assembly 21 to rotate, thereby driving the rear axle to be flipped to flip.

[0074] Applying the technical solution of this embodiment, the rear axle to be flipped is placed on the rear axle bracket 1; the flip actuator 2 is adjusted to the pre-positioned position, which is close to the rear axle to be flipped; the clamping assembly 21 is adjusted to the pre-clamping state, in which each clamping sleeve 211 is arranged corresponding to the rear axle bolt of the rear axle to be flipped; the flip actuator 2 is driven to move along the first preset direction toward the rear axle to be flipped until the clamping sleeve 211 clamps the rear axle bolt; the flip driving member 22 is started so that the flip driving member 22 drives the clamping assembly 21 to rotate, thereby driving the rear axle to be flipped to flip. The rear axle flipping operation is performed by the method of this embodiment, and the flipping operation is performed by an automated device, which not only simplifies the operation process of the rear axle flipping and improves the operation efficiency, but also ensures the safety and stability of the flipping process without reducing the labor intensity of personnel, and has strong practicality.

[0075] Optionally, before starting the flip driving member 22, the method further includes: driving the clamping assembly 21 to move in a second preset direction in a direction away from the rear axle bracket 1, so that the rear axle to be flipped has a reserved flipping space. By reserving the flipping space, the rear axle can be ensured to run smoothly and safely during the flipping process, avoiding collision and friction during the flipping process, extending the service life of the equipment, and reducing maintenance costs.

[0076] The present application also provides a preferred embodiment of a rear axle flipping device, which can realize the automation of the rear axle flipping process during the rear axle assembly process, ensure the stability of the rear axle flipping and the accuracy of the rear axle flipping angle. The usage scenarios can be the rear axle assembly in the whole vehicle production line of commercial vehicles, and can also be used in the trial production process of commercial vehicles with a variety of rear axle types.

[0077] Specifically, Figure 5 As shown, the rear axle flipping device is mainly composed of a flip actuator 2, a sensor mechanism and a flip control mechanism. The flip actuator 2 is composed of a mobile base 23 and a support assembly 24 that can be adjusted in all directions, a rotating chassis 212 that can adjust the pitch circle and drive the rear axle to flip, and a clamping assembly 21 that can preliminarily locate the rear axle position and has the function of protecting the rear axle from falling; the sensor mechanism is composed of a camera 214 that identifies the bolt position, a distance measurement assembly that measures the distance between the rear axle and the flip actuator 2, and a pressure monitoring and detection assembly that detects the contact pressure between the bottom of the clamping sleeve 211 and the rear axle bolt; the flip control mechanism is mainly composed of two parts of input information: the rear axle model information (including the pitch circle diameter of the rear axle bolt and the rear axle wheelbase) and the rear axle real-time position information. The control system analyzes the above information, plans the adjustment amount that the actuator needs to make, helps the clamping sleeve 211 in the actuator to clamp the rear axle bolt and fix it, and completes the rear axle flip at the angle required by the operator.

[0078] In this application, the principle and operation steps of the rear axle flipping device for positioning, clamping and flipping the rear axle are described as follows:

[0079] like Figure 6 , Figure 7 As shown, first, the wheelbase of the rear axle to be flipped and the pitch circle diameter of the rear axle bolts are input into the control system. The flip actuator 2, the support assembly 24 and the mobile base 23 of the control system send a signal to start operation, and the electric push rod 2131 in the sleeve adjustment assembly 213 starts to work synchronously, thereby adjusting the position of the clamping sleeve 211 to be consistent with the diameter of the rear axle bolt group. The rear axle is hoisted onto the rear axle bracket 1, and the initial rough positioning is performed to reduce the subsequent system adjustment amount. The laser ranging system is first started to determine the distance between the flip actuator 2 and the rear axle. The control system sends a signal to the flip actuator 2 to drive the flip actuator 2 to move along the length direction of the rear axle body, and move the flip actuator 2 to a position close to the rear axle bolts.

[0080] In this state, the 3D vision cameras on both sides are started to take pictures of the rear axle bolts to confirm the existing axial angle deviation between the multiple clamping sleeves 211 and the rear axle bolt group and the position deviation on the width and height plane of the rear axle. The control system rotates the rotating chassis 212 based on the visual recognition results, adjusts the angle of the clamping sleeve 211 to make it consistent with the angle of the rear axle bolt, and drives the electric lifting cylinder on the support assembly 24 and the electric push rod on the mobile base 23 to fine-tune the width and height of the rear axle, so that the clamping sleeve 211 and the rear axle bolt are fully aligned.

[0081] After the adjustment is completed, the driving motor drives the flip actuator 2 to clamp and move, and the clamping sleeve 211 with a protective layer covers the rear axle bolt to limit the position. At the same time, the flip actuator 2 continues to clamp and move until the pressure value of the pressure sensor at the bottom of the clamping sleeve 211 reaches the preset value, thereby clamping and fixing the rear axle. After the fixation is completed, the control system drives the electric lifting cylinder to move forward along the height direction of the rear axle, reserving space for the rear axle to flip. After reaching the safe position, the reduction motor in the rotating mechanism works to drive the rear axle to flip. When the required angle is reached, the operator inputs a stop command, and the flip stops.

[0082] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0083] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0084] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rear axle flipping device, characterized in that: include: A rear axle bracket (1), wherein the rear axle bracket (1) is used to support the rear axle to be flipped; A flip actuator (2), wherein there are two flip actuators (2), and along a first preset direction, the two flip actuators (2) are respectively located on both sides of the rear axle bracket (1), the flip actuator (2) at least comprises a clamping assembly (21) and a flip driving member (22), the clamping assembly (21) comprises a plurality of clamping sleeves (211), the clamping sleeves (211) are used to accommodate at least part of the rear axle bolts of the rear axle to be flipped, and the flip driving member (22) can drive the clamping assembly (21) to rotate, thereby driving the rear axle to be flipped to flip.

2. The rear axle tilting device according to claim 1, characterized in that: The clamping assembly (21) further comprises a rotating chassis (212), the axial direction of the rotating chassis (212) extending along the first preset direction, a plurality of clamping sleeves (211) being arranged on the rotating chassis (212), and the plurality of clamping sleeves (211) being movably connected to the rotating chassis (212) so as to adjust the position of each clamping sleeve (211) on the rotating chassis (212), wherein the flipping driving member (22) is connected to the rotating chassis (212), and the flipping driving member (22) drives the rotating chassis (212) to rotate, thereby driving the clamping sleeves (211) to rotate.

3. The rear axle flipping device according to claim 2, characterized in that: The distance between the tilting actuator (2) and the rear axle bracket (1) is adjustable.

4. The rear axle tilting device according to claim 3, characterized in that: The clamping assembly (21) is movably arranged along a second preset direction, and / or the clamping assembly (21) is movably arranged along a third preset direction, wherein the first preset direction is a length direction of the rear axle, the second preset direction is a thickness direction of the rear axle, and the third preset direction is a width direction of the rear axle.

5. The rear axle tilting device according to claim 2, characterized in that: The flip actuator (2) further comprises: A movable base (23), the movable base (23) being movably arranged along the first preset direction so as to adjust the distance between the flip actuator (2) and the rear axle bracket (1); A support assembly (24), wherein the clamping assembly (21) and the flip driving member (22) are arranged on the support assembly (24), the support assembly (24) is connected to the movable base (23), and the support assembly (24) is movably arranged along a second preset direction to adjust the distance between the support assembly (24) and the movable base (23).

6. The rear axle tilting device according to claim 5, characterized in that: The support assembly (24) comprises: A first support seat (241), wherein the first support seat (241) is disposed on the movable base (23), and the first support seat (241) is movably disposed along the second preset direction to adjust the distance between the first support seat (241) and the movable base (23); A second support seat (242), the second support seat (242) being arranged on the first support seat (241), and the second support seat (242) being movably arranged relative to the first support seat (241) along the third preset direction, the second support seat (242) being provided with the rotating chassis (212), and the rotating chassis (212) being rotatably connected to the second support seat (242); The flip driving member (22) is arranged on any one of the first supporting seat (241) and the second supporting seat (242).

7. The rear axle tilting device according to claim 2, characterized in that: A pressure detection element is arranged at the bottom of the clamping sleeve (211).

8. The rear axle tilting device according to claim 2, characterized in that: A plurality of movable spaces (2120) are provided on the rotating chassis (212), and the plurality of movable spaces (2120) are arranged in one-to-one correspondence with the plurality of clamping sleeves (211). The clamping sleeves (211) can be movably arranged in the movable spaces (2120) to adjust the position of the clamping sleeves (211) on the rotating chassis (212).

9. The rear axle tilting device according to claim 8, characterized in that: The activity space (2120) is a strip-shaped hole. The clamping assembly (21) further comprises a plurality of sleeve adjustment assemblies (213). The plurality of sleeve adjustment assemblies (213) are arranged in a one-to-one correspondence with the plurality of clamping sleeves (211). The sleeve adjustment assembly (213) at least comprises an electric push rod (2131) and an adjustment bracket (2132) connected to the output end of the electric push rod (2131). The adjustment bracket (2132) is connected to the bottom of the clamping sleeve (211). The open end of the clamping sleeve (211) passes through the strip-shaped hole and extends to the side where the rear axle to be flipped is located. The electric push rod (2131) can drive the adjustment bracket (2132) to move, thereby driving the clamping sleeve (211) to move in the activity space (2120), thereby adjusting the position of the clamping sleeve (211) on the rotating chassis (212).

10. A rear axle flipping method, the method being performed based on the rear axle flipping device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Placing the rear axle to be flipped on the rear axle bracket (1); Adjusting the flip actuator (2) to a pre-positioned position, wherein the pre-positioned position is a position close to the rear axle to be flipped; The clamping assembly (21) is adjusted to a pre-clamping state, in which each clamping sleeve (211) is arranged corresponding to a rear axle bolt of the rear axle to be flipped; driving the flip actuator (2) to move along the first preset direction toward the rear axle to be flipped until the clamping sleeve (211) clamps the rear axle bolt; The flip driving member (22) is started so that the flip driving member (22) drives the clamping assembly (21) to rotate, thereby driving the rear axle to be flipped to flip.

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