Chassis for mobile robot and mobile robot

Abstract

The utility model relates to the technical field of robots, and discloses a chassis for a mobile robot and the mobile robot, the chassis comprises a chassis body, a bearing flat plate and two damping mechanisms, the two damping mechanisms are arranged at two sides of the top surface of the chassis body at intervals along the length direction of the chassis body; and the damping mechanism comprises at least two damping springs, the at least two damping springs are arranged on the top face of the chassis body at intervals in the width direction of the chassis body, and all the damping springs are used for jointly supporting the bearing flat plate so as to conduct damping on a bearing object on the bearing flat plate. The utility model aims to solve the technical problem that wafers are easy to damage in the wafer carrying process due to the poor damping effect of a mobile robot.

Description

Technical Field

[0001] The utility model relates to the technical field of robots, in particular to a chassis for a mobile robot and the mobile robot. Background Art

[0002] With the booming global semiconductor industry, wafer production, a core component of semiconductor manufacturing, continues to expand, placing increasing demands on product quality. To meet this demand, wafer production lines are gradually transitioning to highly automated and intelligent processes, using mobile robots to move wafers, thereby improving production efficiency, reducing labor costs, and ensuring product consistency and yield.

[0003] With current technology, when mobile robots are handling materials between wafer warehouses and production lines, as well as between upstream and downstream production lines, there may be gullies, bumps, and complex terrain with uneven heights. Due to the poor shock absorption effect of mobile robots, wafers are easily damaged, which in turn leads to a low wafer yield. Utility Model Content

[0004] The purpose of the utility model is to provide a chassis for a mobile robot to solve the technical problem that the mobile robot has poor shock absorption effect, which easily causes damage to wafers during the wafer transportation process.

[0005] In order to achieve the above-mentioned object, the utility model provides a chassis for a mobile robot, comprising a chassis body, a load-bearing plate, and two shock-absorbing mechanisms, wherein the two shock-absorbing mechanisms are arranged at intervals on both sides of the top surface of the chassis body along the length direction of the chassis body;

[0006] The shock absorbing mechanism includes at least two shock absorbing springs, and at least two of the shock absorbing springs are arranged on the top surface of the chassis body at intervals along the width direction of the chassis body. All the shock absorbing springs are used to jointly support the supporting plate to absorb shock to the objects carried on the supporting plate.

[0007] Optionally, the two shock absorbing mechanisms are symmetrically arranged on both sides of the top surface of the chassis body in the length direction of the chassis body.

[0008] Optionally, the shock absorbing mechanism includes two shock absorbing springs, which are spaced apart on both sides of the top surface of the chassis body along the width direction of the chassis body, so that the four shock absorbing springs jointly support the supporting plate.

[0009] Optionally, the shock absorbing mechanism further comprises a first hinge, wherein the first hinge and the shock absorbing spring are spaced apart along the length direction of the chassis body, the first hinge and the shock absorbing spring have a preset spacing, and one end of the first hinge is rotatably connected to the chassis body, and the other end of the first hinge is rotatably connected to the supporting plate;

[0010] Wherein, the first hinge is used to limit the swing amplitude of the supporting plate along the length direction of the chassis body when the supporting plate swings.

[0011] Optionally, the shock absorbing mechanism further comprises a second hinge, the second hinge being spaced apart from the first hinge, one end of the second hinge being rotatably connected to the chassis body, and the other end of the second hinge being rotatably connected to the supporting plate;

[0012] Wherein, the second hinge is used to limit the swing amplitude of the carrying plate along the width direction of the chassis body when the carrying plate swings.

[0013] Optionally, the shock absorbing mechanism includes two first hinges, and each first hinge is provided in a one-to-one correspondence with each shock absorbing spring.

[0014] Optionally, the shock absorbing mechanism includes an elastic buffer and two second hinges, the two second hinges are spaced apart along the width direction of the chassis body, and two ends of the elastic buffer are respectively connected to the two second hinges;

[0015] When the supporting plate applies pressure to the second hinges, the two second hinges squeeze the elastic buffer, so that the elastic buffer generates compression deformation; when the supporting plate releases the pressure, the elastic buffer returns to its original shape.

[0016] Optionally, the shock absorbing mechanism further includes a guide shaft, the guide shaft extends along the width direction of the chassis body, the elastic buffer is sleeved on the guide shaft, and the second hinge is slidably provided on the guide shaft.

[0017] Optionally, the shock absorbing mechanism further includes a limiting member, which is fixed to both ends of the guide shaft, and the limiting member is arranged on a side of the second hinge away from the elastic buffer member.

[0018] In a second aspect, the utility model provides a mobile robot, comprising the chassis for the mobile robot.

[0019] The utility model provides a chassis for a mobile robot, which has the following beneficial effects:

[0020] The present invention comprises two shock-absorbing mechanisms spaced along the length of the chassis body on either side of the top surface. Each shock-absorbing mechanism includes at least two shock-absorbing springs spaced along the width of the chassis body to form a shock-absorbing system for the mobile robot. The two shock-absorbing mechanisms jointly support a load-bearing plate at two locations, front and rear, along the length of the chassis body. When the mobile robot travels on uneven ground, vibrations are transmitted to the load-bearing plate. The elastic deformation of each shock-absorbing spring absorbs and disperses the vibration energy, reducing the impact of vibrations on objects loaded on the load-bearing plate. This ensures the smooth operation of the mobile robot and the safety of the loaded objects, thereby improving the shock-absorbing effect of the mobile robot. When the loaded objects are wafers, this can prevent damage to the wafers, thereby improving the yield rate of the wafers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A schematic structural diagram of a chassis provided in an embodiment of the present utility model;

[0023] Figure 2 An exploded schematic diagram of a chassis provided in an embodiment of the present utility model;

[0024] Figure 3 A schematic structural diagram of the chassis provided by an embodiment of the present utility model without the supporting plate;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0026] Figure 5 Another structural schematic diagram of the chassis provided by the embodiment of the present utility model without the supporting plate;

[0027] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0028] Figure 7 A schematic structural diagram of a first hinge provided in an embodiment of the present utility model;

[0029] Figure 8 This is a schematic structural diagram of the second hinge provided in an embodiment of the present utility model.

[0030] The following are marked in the figure:

[0031] 1. Chassis body; 2. Load-bearing plate; 3. Shock-absorbing mechanism; 30. Shock-absorbing spring; 31. First hinge; 311. First connecting rod; 312. Second connecting rod; 313. Fixed block; 32. Second hinge; 33. Elastic buffer; 34. Guide shaft; 35. Limiting member; 4. Accordion cover; X, length direction; Y, width direction. DETAILED DESCRIPTION

[0032] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices and elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of this utility model, it should be understood that the terms "first," "second," etc. are used to describe various types of information, but such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information without departing from the scope of this utility model.

[0035] Currently, traditional mobile robot chassis generally use universal wheels as their moving mechanism. Due to their flexibility and multi-directional rotation, universal wheels enable robots to move freely in various complex environments. To enhance the robot's driving stability and ride comfort on uneven surfaces, shock-absorbing springs are often installed on the universal wheels to absorb vibration energy, reduce the impact on the robot and the loaded objects, and protect the robot and its load from damage. However, since universal wheels need to be driven and turned frequently during movement, shock-absorbing springs are prone to fatigue damage or even breakage when continuously subjected to dynamic loads and complex stress changes. This not only affects the shock absorption effect, but can also cause instability during the robot's driving process. In severe cases, the robot may even overturn or be damaged.

[0036] like Figures 1 to 3As shown, an embodiment of the present invention provides a chassis for a mobile robot, including a chassis body 1, a load-bearing plate 2 and two shock-absorbing mechanisms 3, the two shock-absorbing mechanisms 3 are arranged at intervals on both sides of the top surface of the chassis body 1 along the length direction X of the chassis body 1; the shock-absorbing mechanism 3 includes at least two shock-absorbing springs 30, at least two shock-absorbing springs 30 are arranged at intervals on the top surface of the chassis body 1 along the width direction Y of the chassis body 1, and all the shock-absorbing springs 30 are used to jointly support the load-bearing plate 2 to reduce the shock of the carried object on the load-bearing plate 2.

[0037] In this embodiment, the chassis 1 serves as the supporting foundation for the entire device, possessing sufficient strength and rigidity to withstand external shock and vibration. The support plate 2 is used to support the robot body or a load. The support plate 2 is connected to the chassis 1 via a shock-absorbing mechanism 3. The load can be the robot body or a structure such as a rack or fixture holding multiple wafers.

[0038] Based on the above technical solution, this embodiment disposes two shock-absorbing mechanisms 3 on either side of the top surface of the chassis body 1, spaced apart along its longitudinal direction X. Each shock-absorbing mechanism 3 includes at least two shock-absorbing springs 30, spaced apart along the width direction Y of the chassis body 1, to form a shock-absorbing system for the mobile robot. The two shock-absorbing mechanisms 3, located at the front and rear of the chassis body 1 in the longitudinal direction X, jointly support the load platform 2. When the mobile robot travels on uneven ground, vibrations are transmitted to the load platform 2. The elastic deformation of each shock-absorbing spring 30 absorbs and disperses the vibration energy, reducing the impact of the vibration on the object loaded on the load platform 2. This ensures the smooth operation of the mobile robot and the safety of the loaded object, improving the shock-absorbing effect of the mobile robot, and, when the loaded object is a wafer, preventing damage to the wafer and improving the wafer yield rate.

[0039] It can be understood that compared with directly installing the shock-absorbing spring on the universal wheel, this embodiment sets the shock-absorbing mechanism 3 or the shock-absorbing spring 30 on the top surface of the chassis body 1, which can effectively disperse and absorb vibrations, reduce fatigue damage of the shock-absorbing spring 30, and at the same time ensure the shock-absorbing effect, preventing the mobile robot from easily causing damage to the wafers during the wafer transportation process.

[0040] In some embodiments, as Figure 2 As shown, the two shock absorbing mechanisms 3 are symmetrically arranged on both sides of the top surface of the chassis body 1 in the length direction X of the chassis body 1.

[0041] Specifically, the symmetrically arranged shock-absorbing mechanisms 3 ensure that the shock-absorbing force on both sides of the chassis is balanced when subjected to external impact or vibration, reducing chassis sway and tilt, thereby improving the stability of the mobile robot during travel. Furthermore, the symmetrically arranged shock-absorbing mechanisms 3 disperse the load borne by the chassis. When the mobile robot is carrying heavy objects or traveling on different terrains, this dispersion reduces the burden on a single shock-absorbing mechanism and prevents damage due to overload.

[0042] In some embodiments, as Figure 3 As shown, the shock absorbing mechanism 3 includes two shock absorbing springs 30 , which are spaced apart on both sides of the top surface of the chassis body 1 along the width direction Y of the chassis body 1 so that the four shock absorbing springs 30 jointly support the supporting plate 2 .

[0043] Specifically, the shock-absorbing springs 30 can be made of a spring material with high elasticity, high strength, and long life, such as stainless steel or alloy steel. One end of the shock-absorbing spring 30 is fixedly connected to the top surface of the chassis body 1, and the other end is fixedly connected to the bottom surface of the support plate 2. The four shock-absorbing springs 30 are symmetrically arranged and collectively support the support plate 2, forming an elastic support assembly. When the mobile robot is subjected to external impact or vibration, the four shock-absorbing springs 30 absorb and disperse the impact force from different positions, thereby protecting the chassis body 1 and the support plate 2 from damage.

[0044] In some embodiments, the shock absorbing mechanism 3 may further include other shock absorbing elements, such as shock absorbing pads, shock absorbers, etc., which are used in conjunction with the shock absorbing spring 30 to form a more complex shock absorbing system to further enhance the shock absorbing effect.

[0045] In some embodiments, the spring constant and length of the shock absorbing spring 30 can be adjusted based on the weight of the mobile robot. For example, in scenarios requiring a higher load capacity, a shock absorbing spring 30 with a higher spring constant and a longer length can be selected; whereas in scenarios requiring a better shock absorption effect, a shock absorbing spring 30 with a lower spring constant and a shorter length can be selected.

[0046] In some embodiments, as Figures 3 to 6 As shown, the shock absorbing mechanism 3 also includes a first hinge 31, and the first hinge 31 and the shock absorbing spring 30 are spaced apart along the length direction X of the chassis body 1. The first hinge 31 and the shock absorbing spring 30 have a preset spacing distance, and one end of the first hinge 31 is rotatably connected to the chassis body 1, and the other end of the first hinge 31 is rotatably connected to the supporting plate 2; wherein, the first hinge 31 is used to limit the swing amplitude of the supporting plate 2 along the length direction X of the chassis body 1 when the supporting plate 2 swings.

[0047] Specifically, the first hinge 31 is arranged next to the shock-absorbing spring 30, and the first hinge 31 and the shock-absorbing spring 30 are arranged in parallel along the longitudinal direction X of the chassis body 1. When the chassis is subjected to external impact or vibration and swings, the first hinge 31 swings along with the supporting plate 2, and the shock-absorbing spring 30 dampens the supporting plate 2. The first hinge 31 limits the swing amplitude of the supporting plate 2 along the longitudinal direction X of the chassis body 1 to prevent the supporting plate 2 from being thrown out of the supported object due to excessive swing amplitude.

[0048] This embodiment combines the first hinge 31 and the shock-absorbing spring 30 together, which not only realizes shock-absorbing protection for the chassis, but also limits the swing amplitude of the supporting plate 2, thereby improving the overall stability and safety of the chassis.

[0049] In some embodiments, the first hinge 31 is a guide hinge capable of connecting and supporting an object while providing both guidance and rotational functions. This ensures relative motion of the object while enabling precise motion control and positioning. A guide hinge typically consists of two or more rods connected by bearings or other means to form a pivot point, enabling relative rotation within a certain range.

[0050] For example, Figure 7 As shown, the first hinge 31 includes a first link 311, a second link 312, and a fixed block 313. The lower end of the first link 311 is rotatably connected to the chassis body 1, and the upper end of the first link 311 is rotatably connected to the lower end of the second link 312 (the rotational connection direction of the first link 311 and the second link 312 is the length direction X of the chassis body 1). The upper end of the second link 312 is rotatably connected to the fixed block 313, and the fixed block 313 is fixedly connected to the bottom surface of the supporting plate 2. In this way, one end of the first hinge 31 is rotatably connected to the chassis body 1 and the other end is rotatably connected to the supporting plate 2. When the supporting plate 2 swings due to vibration, the first link 311 and the second link 312 rotate along the length direction of the chassis body 1 to limit the swing direction and swing amplitude of the supporting plate 2.

[0051] Of course, the first hinge 31 in this embodiment is not limited to the connecting rod structure, and can also be a hinge structure that can form a structure that provides guidance and rotation and limits the swing direction and swing amplitude of the supporting plate 2.

[0052] In some embodiments, as Figures 3 to 6 As shown, the shock absorbing mechanism 3 also includes a second hinge 32, which is spaced apart from the first hinge 31, and one end of the second hinge 32 is rotatably connected to the chassis body 1, and the other end of the second hinge 32 is rotatably connected to the supporting plate 2; wherein, the second hinge 32 is used to limit the swing amplitude of the supporting plate 2 along the width direction Y of the chassis body 1 when the supporting plate 2 swings.

[0053] Specifically, during the movement of the mobile robot, vibrations may cause the support plate 2 to swing in different directions. In this embodiment, a second hinge 32 is provided on top of the first hinge 31. The orientation of the second hinge 32 aligns with the width direction Y of the chassis body 1. When the support plate 2 swings, the second hinge 32 limits the swing amplitude of the support plate 2 in the width direction Y of the chassis body 1. In this way, the first hinge 31 and the second hinge 32 respectively limit the swing amplitude of the support plate 2 in the length direction X and the width direction Y of the chassis body 1, improving the stability and safety of the chassis when subjected to external shock or vibration.

[0054] In some embodiments, as Figures 3 to 6 As shown, the shock absorbing mechanism 3 includes two first hinges 31 , and each first hinge 31 is provided in a one-to-one correspondence with each shock absorbing spring 30 .

[0055] Specifically, in this embodiment, each shock-absorbing spring 30 is equipped with a first hinge 31. In this way, a group of shock-absorbing springs 30 and first hinges 31 are respectively provided at the four corner positions of the top surface of the chassis body 1, providing four support points for the supporting plate 2 in the front, back, left and right directions. The shock-absorbing mechanisms and hinges arranged at the four corners help to disperse the vibration more evenly over the entire chassis.

[0056] In some embodiments, as Figure 3 、 Figure 4 and Figure 6 As shown, the shock absorbing mechanism 3 includes an elastic buffer 33 and two second hinges 32. The two second hinges 32 are arranged at intervals along the width direction Y of the chassis body 1, and the two ends of the elastic buffer 33 are respectively connected to the two second hinges 32; when the supporting plate 2 applies pressure to the second hinges 32, the two second hinges 32 squeeze the elastic buffer 33 to cause the elastic buffer 33 to be compressed and deformed; when the supporting plate 2 releases the pressure, the elastic buffer 33 returns to its original state.

[0057] Specifically, the elastic buffer member 33 may be made of a spring or other elastic material, and is used to generate compression deformation when pressure is applied by the supporting plate 2, thereby absorbing and vibrating energy.

[0058] When an object is placed on the load plate 2 and downward pressure is generated, this pressure is transmitted through the load plate 2 to the shock absorbing mechanism 3. At this time, the two second hinges 32 are squeezed, and the two second hinges 32 squeeze the elastic buffer 33, causing it to compress and deform. The elastic buffer 33 absorbs part of the impact energy, thereby reducing the vibration and impact on the chassis body 1. When the object on the load plate 2 is removed or the pressure is reduced, the elastic buffer 33 returns to its original shape due to its own elasticity.

[0059] In some embodiments, as Figure 8 As shown, the shock absorbing mechanism 3 further includes a guide shaft 34 , which extends along the width direction Y of the chassis body 1 , the elastic buffer 33 is sleeved on the guide shaft 34 , and the second hinge 32 is slidably disposed on the guide shaft 34 .

[0060] In this embodiment, the elastic buffer 33 is mounted on the guide shaft 34 to ensure that it compresses and deforms along the width direction Y. When the load plate 2 vibrates, causing downward pressure on the object being carried, this pressure is transmitted through the load plate 2 to the shock absorbing mechanism 3. The second hinge 32 is compressed and slides along the guide shaft 34, compressing the elastic buffer 33. The elastic buffer 33 compresses and deforms under the constraints of the guide shaft 34, absorbing and dissipating some of the impact energy. When the pressure is released, the elastic buffer 33 returns to its original shape due to its own elasticity, pushing the second hinge 32 back to its initial position along the guide shaft 34.

[0061] In some embodiments, as Figure 8 As shown, the shock absorbing mechanism 3 further includes a limiting member 35 , which is fixed to both ends of the guide shaft 34 and is disposed on a side of the second hinge 32 away from the elastic buffer 33 .

[0062] Specifically, the elastic buffer 33 is arranged on the inner side between the two second hinges 32, and the two limit members 35 are respectively arranged on the outer side of the two second hinges 32 (that is, the side away from the elastic buffer 33). During the entire shock absorption process, the limit members 35 limit the sliding range of the second hinge 32, preventing the second hinge 32 from disengaging from the guide shaft 34, thereby enhancing the stability of the shock absorption mechanism 3.

[0063] In some embodiments, as Figure 2 and Figure 3 As shown, the chassis includes an accordion cover 4, which is connected between the chassis body 1 and the supporting plate 2. The accordion cover 4 surrounds the top edge of the chassis body 1 to block the internal structure of the chassis body 1 and the shock-absorbing mechanism 3. The accordion cover 4 can elastically deform and freely expand and contract with the shock-absorbing mechanism 3 without obstructing the movement trajectory of the shock-absorbing mechanism 3.

[0064] In a second aspect, an embodiment of the present invention provides a mobile robot, which includes a chassis for the mobile robot.

[0065] Specifically, a mobile robot may include components such as a chassis, a power system, actuators, and a control system. The chassis is the supporting structure of the mobile robot, carrying all other components and providing a stable platform for movement. The mobile robot of this embodiment utilizes the chassis described in the previous embodiments, leveraging its shock-absorbing properties to ensure stable operation in various terrains and operating conditions. Wheels or tracks may be provided beneath the chassis to provide the robot with motion.

[0066] The power system of a mobile robot includes batteries and power management modules. The batteries provide power for the robot, and the power management module is used to monitor and adjust power output to ensure that the batteries can provide energy to the robot efficiently and safely.

[0067] The control system of a mobile robot consists of a processor, sensors, and a communication module. The processor processes various data and instructions and controls the robot's movements. Sensors sense the robot's surroundings and its status (such as distance and speed). The communication module enables communication between the robot and external devices or systems, such as wireless LAN and Bluetooth. The mobile robot's actuators include a robotic arm, which is used to grasp, move, and manipulate objects.

[0068] It should be understood that the term "and / or" used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. It should be noted that, in this document, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or system.

[0069] The serial numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A chassis for a mobile robot, characterized in that: include: A chassis body, a load-bearing plate, and two shock-absorbing mechanisms, wherein the two shock-absorbing mechanisms are spaced apart and arranged on both sides of the top surface of the chassis body along the length direction of the chassis body; The shock absorbing mechanism includes at least two shock absorbing springs, and at least two of the shock absorbing springs are arranged on the top surface of the chassis body at intervals along the width direction of the chassis body. All the shock absorbing springs are used to jointly support the supporting plate to absorb shock to the objects carried on the supporting plate.

2. The chassis for a mobile robot according to claim 1, characterized in that: The two shock absorbing mechanisms are symmetrically arranged on both sides of the top surface of the chassis body in the length direction of the chassis body.

3. The chassis for a mobile robot according to claim 2, characterized in that: The shock absorbing mechanism includes two shock absorbing springs, which are spaced apart on both sides of the top surface of the chassis body along the width direction of the chassis body, so that the four shock absorbing springs jointly support the bearing plate.

4. The chassis for a mobile robot according to claim 3, characterized in that: The shock absorbing mechanism further includes a first hinge, wherein the first hinge and the shock absorbing spring are spaced apart along the length direction of the chassis body, and a preset spacing is formed between the first hinge and the shock absorbing spring. One end of the first hinge is rotatably connected to the chassis body, and the other end of the first hinge is rotatably connected to the supporting plate. Wherein, the first hinge is used to limit the swing amplitude of the supporting plate along the length direction of the chassis body when the supporting plate swings.

5. The chassis for a mobile robot according to claim 4, characterized in that: The shock absorbing mechanism further includes a second hinge, the second hinge being spaced apart from the first hinge, one end of the second hinge being rotatably connected to the chassis body, and the other end of the second hinge being rotatably connected to the supporting plate; Wherein, the second hinge is used to limit the swing amplitude of the carrying plate along the width direction of the chassis body when the carrying plate swings.

6. The chassis for a mobile robot according to claim 4, characterized in that: The shock absorbing mechanism includes two first hinges, and each of the first hinges is arranged in a one-to-one correspondence with each of the shock absorbing springs.

7. The chassis for a mobile robot according to claim 5, characterized in that: The shock absorbing mechanism includes an elastic buffer and two second hinges, the two second hinges are spaced apart along the width direction of the chassis body, and two ends of the elastic buffer are respectively connected to the two second hinges; When the supporting plate applies pressure to the second hinges, the two second hinges squeeze the elastic buffer, so that the elastic buffer generates compression deformation; when the supporting plate releases the pressure, the elastic buffer returns to its original shape.

8. The chassis for a mobile robot according to claim 7, characterized in that: The shock absorbing mechanism further includes a guide shaft, which extends along the width direction of the chassis body. The elastic buffer is sleeved on the guide shaft, and the second hinge is slidably arranged on the guide shaft.

9. The chassis for a mobile robot according to claim 8, characterized in that: The shock absorbing mechanism further includes a limiting member fixed to both ends of the guide shaft, and the limiting member is arranged on a side of the second hinge away from the elastic buffer member.

10. A mobile robot, characterized in that: The invention comprises a chassis for a mobile robot according to any one of claims 1 to 9.

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