Material transfer robot

Abstract

The application relates to the technical field of mobile robots, in particular to a material transfer robot. The material transfer robot comprises a main body, a driving element and a jacking device. The driving element is installed in the main body, and the jacking device is located on one side of the length direction of the main body and is connected with the driving element. The jacking device comprises a jacking plate, a lead screw and a lifting cooperation mechanism. A guide groove is formed in the side wall of the jacking plate in the width direction of the main body. The guide groove is arranged obliquely relative to the height direction of the main body. One end of the lead screw is connected with the driving element. The lifting cooperation mechanism is threadedly connected with the lead screw. One end of the lifting cooperation mechanism in the width direction of the main body is provided with a cooperation element. The cooperation element extends into the guide groove and cooperates with the guide groove. The driving element drives the lead screw to rotate. The lead screw drives the lifting cooperation mechanism to move in the length direction of the main body, so as to drive the jacking plate to ascend or descend in the height direction of the main body through the guide groove. In this way, the height of the whole material transfer robot is reduced, and the applicable working environment is increased.

Description

Technical Field

[0001] This application relates to the field of mobile robot technology, and in particular to a material handling robot. Background Technology

[0002] Material handling robots are primarily used as material handling or transportation tools. They can travel along a prescribed guide path to enter under products or shelves and use a lifting device to move materials to a designated location. Currently, the lifting and drive devices of existing material handling robots are generally vertically distributed along their height, and the components within the lifting device are poorly distributed, resulting in a relatively high overall height for the robot. This makes it unsuitable for handling low-pallet materials, limiting its usability in certain environments. Utility Model Content

[0003] Therefore, it is necessary to provide a material handling robot with a reasonable structural layout that can reduce the overall height and is suitable for low-pallet material handling conditions.

[0004] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0005] A material handling robot includes a main body, a drive unit, and a lifting device. The drive unit is installed inside the main body, and the lifting device is located on one side of the main body along its length and is connected to the drive unit.

[0006] The lifting device includes a lifting plate, a lead screw, and a lifting and engaging mechanism. The lifting plate has a guide groove on the side wall in the width direction of the main body. The guide groove is inclined relative to the height direction of the main body. One end of the lead screw is connected to the driving component, and the other end is arranged along the length direction of the main body. The lifting and engaging mechanism is threadedly connected to the lead screw, and a engaging element is provided at one end of the lifting and engaging mechanism in the width direction of the main body. The engaging element extends into the guide groove and engages with the guide groove.

[0007] The driving component drives the lead screw to rotate, and the lead screw drives the lifting mechanism to move in the length direction of the main body, so as to drive the lifting plate to rise or fall in the height direction of the main body through the guide groove.

[0008] It is understood that this application reduces the overall height of the material handling robot in the height direction of the main body by installing the drive component on the main body and placing the lifting device on one side of the main body along its length and connecting it to the drive component. Furthermore, by setting up a lifting plate, a lead screw, and a lifting mechanism, and by creating a guide groove inclined relative to the height direction of the main body on the side wall of the lifting plate, the drive component connects to the drive component and the lifting mechanism. When the drive component drives the lead screw to rotate, it drives the lifting mechanism to move. The mating element extending into the guide groove then drives the lifting plate to rise and fall in the height direction of the main body. Thus, the overall height of the lifting device is further reduced by the inclined guide groove relative to the height direction of the main body, enabling the transfer of materials under low pallet conditions and increasing the application scenarios of the material handling robot. In other words, this application reduces the overall height of the material handling robot by placing the lifting device on one side of the main body along its length and by combining the structural design and lifting method of the lifting device, making it suitable for transferring materials under low pallet conditions and increasing its applicable operating environments.

[0009] In one embodiment, the lifting and engaging mechanism includes a connecting block and an adapter plate. The connecting block is threadedly connected to the lead screw, and the adapter plate is fixed to the connecting block and extends along the width direction of the main body. The engaging element is installed on the side of the adapter plate in the width direction of the main body.

[0010] It is understandable that the connecting block is threadedly connected to the lead screw. When the drive component drives the lead screw to rotate, the connecting block can move along the length of the main body. An adapter plate is provided, and the mating element is installed on the adapter plate. In this way, when the connecting block moves along the length of the main body with the lead screw, the mating element acts on the lifting plate in the height direction of the main body through the guide groove, thereby enabling the lifting plate to move up or down.

[0011] In one embodiment, the mating element is configured as a roller or a slider.

[0012] In one embodiment, the number of guide slots is set to at least two, and the lifting plate has at least one guide slot on each of the two side walls in the width direction of the main body;

[0013] The mating elements are arranged in a one-to-one correspondence with the guide grooves.

[0014] Understandably, this configuration balances the forces exerted by the mating components on both sides of the main body's width on the lifting plate in the main body's height direction, thus preventing the lifting plate from tilting due to force on one side and causing material to tip over. In other words, this configuration allows the lifting plate to rise and fall smoothly, thereby improving the reliability of the material handling robot.

[0015] In one embodiment, the lifting plate is on the same side of the body in the width direction, and the number of guide slots is at least two, with at least two guide slots spaced apart along the length direction of the body.

[0016] Understandably, this design ensures that the lifting plate is subjected to uniform force along the length of the main body, preventing tilting due to single-point force and further guaranteeing the smooth lifting and lowering of the lifting plate.

[0017] In one embodiment, the material handling robot further includes a base and a first guiding mechanism;

[0018] The lifting plate is movably mounted on the base in the height direction of the main body, and the first guiding mechanism extends along the length direction of the main body and is mounted on the base to guide the lifting and cooperating mechanism to move in the length direction of the main body.

[0019] In one embodiment, the first guiding mechanism includes a slide rail and a slider. The slide rail extends along the length of the main body and is mounted on the base. The slider is fixed to the lifting and engaging mechanism and slides with the slide rail.

[0020] It is understandable that by extending the slide rail along the length of the main body and installing it on the base, and fixing the slider that slides with the slide rail to the lifting mechanism, the lifting mechanism can move linearly along the track of the slide rail when it moves with the lead screw along the length of the main body. This avoids the lifting mechanism from deviating from its movement along the length of the main body and further improves the reliability of the material handling robot when handling materials.

[0021] In one embodiment, the material handling robot further includes a second guiding mechanism that extends along the height direction of the main body and is disposed on the base to guide the lifting plate to move up or down in the height direction of the main body.

[0022] In one embodiment, the second guiding mechanism includes a guide seat and a guide post. The guide seat is mounted on the base and has a guide hole extending along the height direction of the main body. One end of the guide post is fixedly connected to the lifting plate, and the other end is slidably engaged with the guide hole.

[0023] Understandably, the guide column is installed on the base, with one end of the guide column fixedly connected to the lifting plate and the other end slidingly engaged with the guide hole of the guide column. In this way, when the lifting plate moves up and down in the height direction of the main body, it can move in a straight line along the trajectory of the guide hole, further preventing the lifting plate from tilting when it is raised or lowered.

[0024] In one embodiment, in the height direction of the main body, the side of the lifting plate opposite to the lifting mechanism is set as a bearing surface, and the bearing surface is used to bear materials.

[0025] A buffer pad is provided on the bearing surface.

[0026] It is understandable that the buffer pad has a buffering effect. Placing the buffer pad on the bearing surface creates a buffering force between the material and the lifting device, which can prevent the lifting device from being damaged by sudden pressure from the material and also has an aesthetic function.

[0027] Compared to existing technologies, the material handling robot described herein reduces the overall height of the robot in the height direction of the main body by installing the drive component on the main body and placing the lifting device on one side of the main body along its length and connecting it to the drive component. Furthermore, by setting up a lifting plate, a lead screw, and a lifting mechanism, and by creating a guide groove inclined relative to the height direction of the main body on the side wall of the lifting plate, the drive component drives the lead screw to rotate, which in turn drives the lifting mechanism. The mating element extending into the guide groove then drives the lifting plate to rise and fall in the height direction of the main body. This design, with the guide groove inclined relative to the height direction of the main body, further reduces the overall height of the lifting device, enabling the handling of materials in low-pallet conditions and expanding the robot's application scenarios. In short, this application reduces the overall height of the material handling robot by placing the lifting device on one side of the main body along its length and by combining the structural design and lifting method of the lifting device, making it suitable for handling materials in low-pallet conditions and increasing its applicable operating environments. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural schematic diagram of the material handling robot provided in this application.

[0030] Figure 2 This is an exploded structural diagram of the material handling robot provided in this application, with some parts omitted.

[0031] Figure 3 An exploded view of the material handling robot in another embodiment provided in this application, with some parts omitted.

[0032] Figure 4This is a top view of the material handling robot provided in this application.

[0033] Figure 5 Provided for this application Figure 4 A partial structural schematic diagram of the cross-sectional structure at point AA.

[0034] Figure 6 This is a cross-sectional structural diagram of the material transfer robot provided in this application near the second guiding mechanism.

[0035] The component labels are as follows:

[0036] 100. Material handling robot; 10. Main body; 20. Drive unit; 21. Coupling; 30. Lifting device; 31. Lifting plate; 311. Guide groove; 312. Bearing surface; 313. Buffer pad; 314. Lifting side plate; 315. Lifting main plate; 32. Lead screw; 33. Lifting and adjusting mechanism; 331. Adjusting element; 332. Connecting block; 333. Adapter plate; 334. Buffer block; 40. Base; 50. First guiding mechanism; 51. Slide rail; 52. Slider; 60. Second guiding mechanism; 61. Guide seat; 62. Guide column; 621. Guide hole; 70. Positioning pin. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0042] Please see Figures 1 to 6 This application provides a material handling robot 100. Through reasonable structural design and layout, the material handling robot 100 is suitable for material handling operations at lower heights, applicable to a wide range of environments, and convenient to use.

[0043] Specifically, the material handling robot 100 includes a main body 10, a drive unit 20, and a lifting device 30. The drive unit 20 is installed inside the main body 10, and the lifting device 30 is located on one side of the main body 10 in the length direction x and is connected to the drive unit 20. The lifting device 30 includes a lifting plate 31, a lead screw 32, and a lifting and coordinating mechanism 33. The lifting plate 31 has a guide groove 311 on the side wall of the main body 10 in the width direction y. The guide groove 311 is inclined relative to the height direction z of the main body 10. One end of the lead screw 32 is connected to the drive unit 20. The other end is arranged along the length x direction of the main body 10. The lifting and engaging mechanism 33 is threadedly connected to the lead screw 32. The lifting and engaging mechanism 33 is provided with a engaging element 331 at one end of the width y direction of the main body 10. The engaging element 331 extends into the guide groove 311 and engages with the guide groove 311. The driving member 20 drives the lead screw 32 to rotate. The lead screw 32 drives the lifting and engaging mechanism 33 to move in the length x direction of the main body 10, so as to drive the lifting plate 31 to rise or fall in the height z direction of the main body 10 through the guide groove 311.

[0044] It should be explained that the lifting device 30 and the drive device of the existing material handling robot 100 are generally arranged vertically along the height direction z, and some of the lifting devices 30 are structures such as lifting brackets or telescopic rods. These structures are all arranged along the height direction z, so that the lowest point of the lifting plate 31 in the height direction z is also high. This makes it unsuitable for material handling in lower environments or with low pallets, thus limiting its application scenarios. This application reduces the overall height of the material transfer robot 100 in the height direction z of the main body 10 by installing the drive component 20 on the main body 10 and setting the lifting device 30 on one side of the main body 10 in the length direction x and connecting it to the drive component 20. By setting up a lifting plate 31, a lead screw 32 and a lifting and coordinating mechanism 33, a guide groove 311 inclined relative to the height direction z of the main body 10 is opened on the side wall of the lifting plate 31. The lead screw 32 is connected to the drive component 20 and the lifting and coordinating mechanism 33, so that when the drive component 20 drives the lead screw 32 to rotate, it can drive the lifting and coordinating mechanism 33 to move. The coordinating element 331 extending into the guide groove 311 drives the lifting plate 31 to rise and fall in the height direction z of the main body 10. In this way, by setting up the guide groove 311 inclined relative to the height direction z of the main body 10, the overall height of the material transfer robot 100 is further reduced compared to existing structures such as telescopic rods set along the height direction z. This enables the transfer of materials under low pallet conditions and increases the application scenarios of the material transfer robot 100. In other words, by setting the lifting device 30 on one side of the main body 10 in the length direction x, and combining the structural setting and lifting method of the lifting device 30, the height of the material transfer robot 100 is reduced, so that it can be used to transfer materials under low pallet conditions, thereby increasing the applicable working environment.

[0045] Here, the driving component 20 can adopt a driving structure such as a stepper motor, servo motor, or pneumatic motor. Of course, it is not limited to this, and the specific driving structure adopted by the driving component 20 can be determined according to the actual situation.

[0046] like Figure 1 and Figure 2 As shown, the material handling robot 100 is also equipped with a coupling 21, which is arranged along the length x of the main body 10. The drive component 20 is connected to the lead screw 32 through the coupling 21, so as to serve as a power transmission structure. While compensating for the rotational deviation of the lead screw 32, it ensures the operation of the drive component 20.

[0047] like Figures 2 to 5As shown, the number of guide grooves 311 is set to at least two, and the lifting plate 31 has at least one guide groove 311 on each of the two side walls of the main body 10 in the width direction y; the mating element 331 is set in a one-to-one correspondence with the guide groove 311. This arrangement makes the force of the mating element 331 on both sides of the main body 10 in the width direction y of the main body 10 balanced on the lifting plate 31 in the height direction z of the main body 10, so as to avoid the lifting plate 31 tilting due to force on one side, causing the material to tip over. In other words, by setting it in this way, the lifting plate 31 can be raised and lowered smoothly, thereby improving the reliability of the material transfer robot 100.

[0048] In one embodiment, the lifting plate 31 is located on the same side of the main body 10 in the width direction y, and the number of guide grooves 311 is at least two, with at least two guide grooves 311 spaced apart along the length direction x of the main body 10. This arrangement ensures that the lifting plate 31 is subjected to uniform force in the length direction x of the main body 10, avoiding single-point force and tilting in the length direction x of the main body 10, thus further ensuring the smooth lifting and lowering movement of the lifting plate 31.

[0049] Preferably, in the height direction z of the main body 10, the side of the lifting plate 31 facing away from the lifting mechanism 33 is set as a bearing surface 312, which is used to bear materials; wherein, a buffer pad 313 is provided on the bearing surface 312. It can be understood that the buffer pad 313 has a buffering function. The buffer pad is provided on the bearing surface 312 to provide a buffering force between the material and the lifting device 30, so as to avoid damage to the lifting device 30 due to sudden pressure from the material, and also has an appearance enhancement function.

[0050] Furthermore, multiple buffer pads 313 can be provided, and the multiple buffer pads 313 are distributed at intervals on the bearing surface 312.

[0051] In this embodiment, two buffer pads 313 are provided, and the two buffer pads 313 are spaced apart in the width direction y of the main body 10. Of course, this is not the only option, and the specific number of buffer pads 313 provided depends on actual needs.

[0052] In this embodiment, the lifting plate 31 consists of lifting side plates 314 and lifting main plate 315. The lifting side plates 314 extend along the length direction x of the main body 10 and at least two are provided. The two lifting side plates 314 are spaced apart in the width direction y of the main body 10. The lifting main plate 315 is located above the lifting side plates 314 in the height direction z of the main body 10 and is connected to the lifting side plates 314. A guide groove 311 is provided on the lifting side plate 314, and the bearing surface 312 is located on the lifting main plate 315.

[0053] Please continue to refer to this. Figures 2 to 5 The mating element 331 is configured as a roller or a slider. Of course, it is not limited to this; the mating element 331 can also adopt other structures such as a roller.

[0054] In one embodiment, the lifting and lowering mechanism 33 includes a connecting block 332 and an adapter plate 333. The connecting block 332 is threadedly connected to the lead screw 32, and the adapter plate 333 is fixed to the connecting block 332 and extends along the width direction y of the main body 10. The mating element 331 is installed on the side of the adapter plate 333 in the width direction y of the main body 10. It is understood that the connecting block 332 is threadedly connected to the lead screw 32. When the driving member 20 drives the lead screw 32 to rotate, the connecting block 332 can move in the length direction x of the main body 10. The adapter plate 333 is provided, and the mating element 331 is installed on the adapter plate 333. Thus, when the connecting block 332 moves in the length direction x of the main body 10 as the lead screw 32 rotates, the mating element 331 acts on the lifting plate 31 in the height direction z of the main body 10 through the guide groove 311, thereby enabling the lifting plate 31 to move up or down.

[0055] Furthermore, the adapter plate 333 is provided with a buffer block 334 on the side of the main body 10 facing the lifting plate 31 in the height direction z, so as to avoid the lifting plate 31 directly hitting the adapter plate 333 during lifting and lowering, thus avoiding structural damage.

[0056] Here, four buffer blocks 334 are provided, located at the four corners of the adapter plate 333. Of course, the number of buffer blocks 334 is not limited to this and can be determined according to actual needs.

[0057] like Figure 2 and Figure 6 As shown, the material transfer robot 100 also includes a base 40 and a first guiding mechanism 50; the lifting plate 31 is movably mounted on the base 40 in the height direction z of the main body 10, and the first guiding mechanism 50 extends along the length direction x of the main body 10 and is mounted on the base 40 to guide the lifting and coordinating mechanism 33 to move in the length direction x of the main body 10.

[0058] For example, the first guiding mechanism 50 includes a slide rail 51 and a slider 52. The slide rail 51 extends along the length x of the main body 10 and is mounted on the base 40. The slider 52 is fixed to the lifting and engaging mechanism 33 and slides in engagement with the slide rail 51. It is understood that by extending the slide rail 51 along the length x of the main body 10 and mounting it on the base 40, and fixing the slider 52, which slides in engagement with the slide rail 51, to the lifting and engaging mechanism 33, the lifting and engaging mechanism 33 can move linearly along the trajectory of the slide rail 51 when it moves with the lead screw 32 along the length x of the main body 10. This avoids movement deviation of the lifting and engaging mechanism 33 along the length x of the main body 10, further improving the reliability of the material handling robot 100 during material handling.

[0059] In one embodiment, the material transfer robot 100 further includes a second guiding mechanism 60, which extends along the height direction z of the main body 10 and is disposed on the base 40 to guide the lifting plate 31 to move up or down in the height direction z of the main body 10.

[0060] For example, the second guiding mechanism 60 includes a guide seat 61 and a guide post 62. The guide seat 61 is mounted on the base 40 and has a guide hole 621 extending along the height direction z of the main body 10. One end of the guide post 62 is fixedly connected to the lifting plate 31, and the other end is slidably engaged with the guide hole 621. It can be understood that by mounting the guide post 62 on the base 40, fixing one end of the guide post 62 to the lifting plate 31, and slidably engaging the other end with the guide hole 621, the lifting plate 31 can move linearly along the trajectory of the guide hole 621 when it moves up and down in the height direction z of the main body 10, further preventing the lifting plate 31 from tilting during lifting and lowering.

[0061] like Figure 1 and Figure 4 As shown, the material transfer robot 100 also includes a positioning pin 70. The positioning pin 70 is located on the upper side of the lifting main plate 315 in the height direction z of the main body 10. The positioning pin 70 is used to eliminate the mechanical automatic alignment error between the lifting plate 31 and the structure holding the material, so as to facilitate the placement of the material on the lifting plate 31.

[0062] In one embodiment, the material handling robot 100 also includes components such as a controller, a lidar, a main drive motor, a support wheel system, a battery, a barcode reader, a router, a speaker, and light strips. The controller is responsible for receiving and issuing vehicle commands; the lidar is responsible for building a vehicle map and providing obstacle warnings; the main drive motor is responsible for driving the vehicle; the battery provides power to the vehicle; the support wheel system, consisting of wheels and wheel connecting rods, is responsible for vehicle movement and balance; the barcode reader reads the codes on the goods; the router enables communication between the robot and external systems; the speaker broadcasts relevant robot prompts; and the light strips indicate the robot's status and its battery level.

[0063] Here, the controller, lidar, main drive motor, support wheel system, battery, barcode reader, router, speaker, and light strip are all located on the main body 10. This further reduces the minimum height that the lifting plate 31 can reach in the height direction of the main body 10, making it suitable for material transportation in low-height environments. It should be noted that the specific placement and connection relationships of the above-mentioned components are existing technology and will not be elaborated upon here.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A material handling robot, comprising a main body, a drive unit, and a lifting device, wherein the drive unit is installed inside the main body, and the lifting device is located on one side of the main body along its length and connected to the drive unit; characterized in that: The lifting device includes a lifting plate, a lead screw, and a lifting and engaging mechanism. The lifting plate has a guide groove on the side wall in the width direction of the main body. The guide groove is inclined relative to the height direction of the main body. One end of the lead screw is connected to the driving component, and the other end is arranged along the length direction of the main body. The lifting and engaging mechanism is threadedly connected to the lead screw, and a engaging element is provided at one end of the lifting and engaging mechanism in the width direction of the main body. The engaging element extends into the guide groove and engages with the guide groove. The driving component drives the lead screw to rotate, and the lead screw drives the lifting mechanism to move in the length direction of the main body, so as to drive the lifting plate to rise or fall in the height direction of the main body through the guide groove.

2. The material handling robot according to claim 1, characterized in that, The lifting and engaging mechanism includes a connecting block and an adapter plate. The connecting block is threadedly connected to the lead screw, and the adapter plate is fixed to the connecting block and extends along the width direction of the main body. The engaging element is installed on the side of the adapter plate in the width direction of the main body.

3. The material handling robot according to claim 1, characterized in that, The mating element is configured as a roller or a slider.

4. The material handling robot according to claim 1, characterized in that, The number of guide grooves is set to at least two, and the lifting plate has at least one guide groove on each of the two side walls in the width direction of the main body; The mating elements are arranged in a one-to-one correspondence with the guide grooves.

5. The material handling robot according to claim 4, characterized in that, The lifting plate is on the same side of the width direction of the main body, and the number of the guide grooves is set to at least two, with at least two guide grooves spaced apart along the length direction of the main body.

6. The material handling robot according to claim 1, characterized in that, The material handling robot also includes a base and a first guiding mechanism; The lifting plate is movably mounted on the base in the height direction of the main body, and the first guiding mechanism extends along the length direction of the main body and is mounted on the base to guide the lifting and cooperating mechanism to move in the length direction of the main body.

7. The material handling robot according to claim 6, characterized in that, The first guiding mechanism includes a slide rail and a slider. The slide rail extends along the length of the main body and is installed on the base. The slider is fixed to the lifting and engaging mechanism and slides with the slide rail.

8. The material handling robot according to claim 6, characterized in that, The material transfer robot also includes a second guiding mechanism, which extends along the height direction of the main body and is disposed on the base to guide the lifting plate to move up or down in the height direction of the main body.

9. The material handling robot according to claim 8, characterized in that, The second guiding mechanism includes a guide seat and a guide column. The guide seat is installed on the base and has a guide hole extending along the height direction of the main body. One end of the guide column is fixedly connected to the lifting plate, and the other end is slidably engaged with the guide hole.

10. The material handling robot according to claim 1, characterized in that, In the height direction of the main body, the side of the lifting plate opposite to the lifting and cooperating mechanism is set as a bearing surface, and the bearing surface is used to bear materials; A buffer pad is provided on the bearing surface.

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