Alignment device and material handling system

Abstract

The application discloses a positioning device and a material handling system, and relates to the technical field of positioning. The positioning device comprises a first positioning assembly and a second positioning assembly. The first positioning assembly is used for connecting a first target. The first positioning assembly comprises a first main body, a first receiving position and a second receiving position which are arranged at the same side of the first main body at intervals in a first direction. The second positioning assembly is used for connecting a second target. The second positioning assembly comprises a second main body, a first connecting part, a second connecting part and a first elastic part. The first connecting part and the second connecting part are arranged at the same side of the second main body at intervals. The first connecting part is used for being limitedly matched with the first receiving position in the first direction. The first elastic part is arranged between the first connecting part and the second main body and provides elastic buffering for the first connecting part and the second main body. Through the limited matching of the first connecting part and the first receiving position and the limited matching of the second connecting part and the second receiving position, the problem that the trolley and the machine table are inconvenient to be positioned is solved.

Description

Technical Field

[0001] This application relates to the field of positioning technology, and more particularly to a positioning device and a material handling system. Background Technology

[0002] In the production and processing process in the factory, trolleys are usually used to move materials between machines. Currently, most trolleys on the market do not have alignment devices when they need to be docked with machines. Some structures with alignment devices cannot be easily fixed and detached. There are technical problems such as cumbersome operation and inconvenience in docking and detaching trolleys from machines. Utility Model Content

[0003] This application provides a positioning device and a material handling system, which aims to solve the technical problems of cumbersome and inconvenient positioning of trolleys and machines.

[0004] The first aspect of this application provides an alignment device, comprising: A first alignment component is used to connect to a first target, and the first alignment component includes a first body and a first receiving position and a second receiving position disposed at a distance from each other on the same side of the first body along a first direction. The second alignment component is used to connect to the second target, and the second alignment component includes a second body, a first docking component, a second docking component and a first elastic component. The first docking component and the second docking component are spaced apart and disposed on the same side of the second body. The first docking component is used to adapt to the first receiving position at the upper limit in the first direction. The first elastic component is disposed between the first docking component and the second body and provides elastic buffer for the two. The second docking component is used to adapt to the second receiving position at the upper limit in the second direction. Applying a force away from the second receiving position to the second docking component in the second direction and the third direction can cause the second docking component to disengage from the second receiving position. Wherein, the first direction, the second direction, and any two of the third direction are perpendicular to each other.

[0005] In some embodiments, the first docking component includes a first connector, a first swing arm, and a first bearing. The first swing arm is connected to the second body via the first connector, and the first bearing is rotatably connected to the first swing arm. The first bearing is used for abutment and limiting adaptation with the first receiving position.

[0006] In some embodiments, the first docking component further includes a rotating shaft, and the first swing arm is rotatably connected to the first connector via the rotating shaft. The first swing arm can rotate relative to the second body with the third direction line as the axis of rotation.

[0007] In some embodiments, the first alignment assembly further includes an assembly having a connecting portion and a limiting portion, the connecting portion being connected to the second body, and the limiting portion being located on the side of the first swing arm opposite to the second body. The first swing arm has a rotating end, which is located between the second body and the limiting part to limit the rotation range of the first swing arm.

[0008] In some embodiments, the first alignment component further includes a first abutment and a second abutment, one of which is disposed on the second body near the rotating end, and the other is disposed on the limiting portion near the rotating end. The first abutment and the second abutment are elastically deformable.

[0009] In some embodiments, the first swing arm is provided with a first mounting hole on the side near the second body, the first elastic member is disposed in the first mounting hole and abuts against the second body, and the rotating end, the first mounting hole and the rotating shaft are arranged sequentially along the first direction.

[0010] In some embodiments, the second docking component includes a second connector, a second elastic member, a second swing arm, and a second bearing. The second connector is connected to the second body and forms a cavity with an opening facing the first body. The second swing arm is disposed in the cavity and is at least partially exposed through the opening to the second connector. The second elastic element is disposed in the cavity and abuts against the second swing arm and the second connecting member. When the second swing arm is subjected to a force in the third direction, it can swing in the cavity along the third direction. The second bearing is rotatably connected to the second swing arm and located outside the second connecting member. The second bearing is used to be adapted to the second receiving position limit.

[0011] In some embodiments, the first alignment component further includes a first alignment member having the first receiving position formed thereon, and the first receiving position being a first groove with an opening along the first direction toward the second mating member.

[0012] In some embodiments, the first alignment component further includes a second alignment member, on which a second receiving position is formed, and the second receiving position is a second groove with an opening facing the third direction; And / or, the second alignment assembly further includes a third connector and a third bearing, the third connector being connected to the second body, the third bearing being rotatably connected to the third connector, and the third connector being adapted to limit and abut against the second alignment member in the first direction.

[0013] A second aspect of this application also provides a material handling system, which includes a positioning device, a machine, and a transfer device as described in any one of the first aspects of this application; The first alignment component is connected to the machine tool, and the second alignment component is connected to the transfer device.

[0014] This application aligns a first target and a second target by setting a first alignment component and a second alignment component for limiting and adapting. Specifically, the first docking part on the second alignment component is limited and adapted to the first receiving position on the first alignment component. Then, by rotating the second main body, the second docking part is brought closer to the second receiving position until the second docking part and the second receiving position are limited and adapted, thereby achieving rapid positioning. By applying force to the second docking part in a second direction and a third direction upward, the second docking part is disengaged from the second receiving position, thereby quickly releasing the positioning and cooperation between the first target and the second target. This solves the technical problem of poor convenience and cumbersome operation in positioning and fixing between the trolley and the machine.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the disclosure of the embodiments of this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0017] Figure 1 A three-dimensional structural schematic diagram of the alignment device provided in the first aspect of this application; Figure 2 A schematic diagram of the exploded structure of the alignment device provided in the first aspect of this application; Figure 3 A schematic diagram of the mating structure of the first docking component and the first elastic component of the alignment device provided in the first aspect of this application; Figure 4 A top view of the alignment device provided in the first aspect of this application; Figure 5 for Figure 4 A cross-sectional view of the alignment device at point AA; Figure 6 for Figure 4 A cross-sectional view of the alignment device at point BB; Figure 7 for Figure 4 A cross-sectional view of the alignment device at point CC; Figure 8 This is a schematic diagram of the material handling system provided in the second aspect of this application.

[0018] Reference numerals: 100, First alignment assembly; 110, First main body; 120, First alignment member; 121, First receiving position; 130, Second alignment member; 131, Second receiving position; 200, Second alignment assembly; 210, Second main body; 220, First docking component; 221, First connecting member; 222, First swing arm; 223, First mounting hole; 224, First bearing; 225, Rotating shaft; 226, Assembly part; 2261, Connecting part; 226 2. Limiting part; 227. First abutting part; 228. Second abutting part; 230. First elastic component; 240. Second docking component; 241. Second connecting component; 242. Cavity; 243. Second assembly hole; 244. Second elastic component; 245. Second swing arm; 246. Second bearing; 250. Third connecting component; 251. Third bearing; 260. Machine base; 270. Transfer device; 10. First direction; 20. Second direction; 30. Third direction. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Currently, in the factory's processing and production process, trolleys are usually needed to move materials and miscellaneous items between machine stations 260. After the trolley moves to the target machine station 260, it needs to be precisely positioned with the target machine station 260 to facilitate the transfer of materials from the trolley to the machine station 260 or from the machine station 260 to the trolley.

[0021] However, existing docking devices have complex structures and are cumbersome to operate during alignment, making positioning difficult and prone to deviations.

[0022] Based on this, the first aspect of this application provides an alignment device, which aims to improve the convenience and accuracy of alignment between the trolley and the machine 260.

[0023] Please see Figures 1-3 This application provides a alignment device, which includes a first alignment component 100 and a second alignment component 200. The first alignment component 100 is used to connect a first target, and the second alignment component 200 is used to connect a second target. It is understood that the first target can be a machine tool 260, and the second target can be a trolley. The trolley and the machine tool 260 are aligned through the first alignment component 100 and the second alignment component 200. Of course, the first target and the second target can also be other devices that need to be aligned. The following description uses the machine tool 260 as the first target and the trolley as the second target.

[0024] The first alignment component 100 includes a first body 110 and a first receiving position 121 and a second receiving position 131 disposed at intervals along the first direction 10 on the same side of the first body 110. The first body 110 is mainly used to connect the machine tool 260. The first receiving position 121 and the second receiving position 131 are disposed on the side of the first body 110 facing away from the machine tool 260.

[0025] The second alignment component 200 includes a second body 210, a first docking component 220, a second docking component 240, and a first elastic component 230. The second body 210 is used to connect to the trolley. The first docking component 220 and the second docking component 240 are spaced apart on the same side of the second body 210, that is, the first docking component 220 and the second docking component 240 are located on the side of the second body 210 away from the trolley. The first docking component 220 is used to be adapted to the first receiving position 121 in the first direction 10. The first elastic component 230 is disposed between the first docking component 220 and the second body 210 and provides elastic buffer for the two.

[0026] Specifically, during the alignment process, the trolley is first moved closer to the machine 260, so that the first docking component 220 on the second alignment assembly 200 is brought closer to the first receiving position 121 until the first docking component 220 and the first receiving position 121 are in upper limit engagement in the first direction 10, thereby completing the alignment of the trolley with one end of the machine 260. During the contact between the trolley and the machine 260, the force generated by the contact between the trolley and the machine 260 can easily cause the trolley to shake. The first elastic component provides elastic buffering between the first body 110 and the first docking component 220, thereby reducing the impact on the trolley caused by impact or contact when the trolley contacts the machine 260 and improving the stability during the alignment process. The first elastic component can be a spring, which is abutted between the first docking component 220 and the second body 210 along the second direction 20. Of course, the first elastic component 230 can also be other devices with elastic deformation function.

[0027] The second docking component 240 is used to be adapted to the second receiving position 131 in the second direction 20. Applying a force away from the second receiving position 131 to the second docking component 240 in the second direction 20 and the third direction 30 can cause the second docking component to disengage from the second receiving position 131.

[0028] Please see Figure 4 Specifically, after the first docking component 220 and the first receiving position 121 are aligned, the second docking component 240 is rotated around the limiting fit point between the first docking component 220 and the first receiving position 121 as the axis, so that the second docking component 240 moves closer to the second receiving position 131 until the second docking component 240 and the second receiving position 131 are upper limit fit in the second direction 20. This completes the alignment of the trolley and the machine 260. By forming a limiting fit between the first alignment component 100 and the second alignment component 200 in two directions, the trolley and the machine 260 are fixed in position. When the trolley needs to be detached from the machine 260, a force is applied to the second docking component 240 in the second direction 20 and the third direction 30 away from the second receiving position 131, causing the second docking component 240 to detach from the second receiving position 131, thereby releasing the first alignment component 100 and the second alignment component 200 from fixation, and thus releasing the fixation between the trolley and the machine 260.

[0029] Among them, any two of the first direction 10, the second direction 20 and the third direction 30 are perpendicular to each other. In the usual use environment, the third direction 30 can also be understood as the vertical direction.

[0030] Please see Figure 5 In some embodiments, the first docking component 220 specifically includes a first connector 221, a first swing arm 222, and a first bearing 224. The first swing arm 222 is connected to the second body 210 via the first connector 221. The first connector 221 is connected to the side of the second body 210 away from the trolley. The first swing arm 222 is connected to the first connector 221, and there is a gap between the first swing arm 222 and the second body 210 to provide space for elastic buffering of the first elastic component. The first bearing 224 is rotatably connected to the first swing arm 222. The first bearing 224 is used to abut and limit the fit with the first receiving position 121. The first bearing 224 limits the abutment with the first receiving position 121. Since the first bearing 224 is rotatably connected to the first swing arm 222, the first body 110 can rotate around the first bearing 224 as the rotation axis.

[0031] The first alignment component 100 also includes a first alignment member 120, on which a first receiving position 121 is formed. The first receiving position 121 is a first groove with an opening along the first direction 10 toward the second mating member 240. The shape of the first groove can be a "V" groove, with the opening end of the "V" being the groove opening and the tip of the "V" being the groove bottom. The first groove abuts against the first bearing 224 through the inner wall of the first groove to accurately limit the positioning of the first bearing 224.

[0032] In some embodiments, the first docking component 220 further includes a rotating shaft 225. The first swing arm 222 is rotatably connected to the first connector 221 via the rotating shaft 225. The first swing arm 222 can rotate relative to the second body 210 with the third direction 30 as the axis of rotation. By setting the rotating shaft 225, the first swing arm 222 rotates with the rotating shaft 225 as the axis. During the rotation of the second body 210, the second body 210 rotates first, and then pushes the first swing arm 222 to rotate, further causing the first bearing 224 to move closer to the first receiving position 121, increasing the stability of the alignment.

[0033] Please see Figure 6 Furthermore, the first alignment assembly 100 also includes an assembly 226, which has a connecting portion 2261 and a limiting portion 2262. The connecting portion 2261 is connected to the second body 210, and the limiting portion 2262 is located on the side of the first swing arm 222 away from the second body 210. The first swing arm 222 has a rotating end located between the second body 210 and the limiting portion 2262 to limit the rotation range of the first swing arm 222. The limiting portion 2262 is used to push the rotating end of the first swing arm 222 on the side of the first swing arm 222 away from the second body 210, so that when the second body 210 rotates in a direction away from the first body 110, the limiting portion 2262 pushes the rotating end to cause the first swing arm 222 to rotate in a direction away from the first body 110, thereby causing the first bearing 224 to disengage from the first receiving position.

[0034] The first alignment component 100 further includes a first abutment 227 and a second abutment 228. One of the first abutment 227 and the second abutment 228 is disposed on the second main body 210 near the rotating end, and the other is disposed on the limiting portion 2262 near the rotating end. Alternatively, the first abutment 227 may be disposed on the second main body 210 near the rotating end, and the second abutment 228 may be disposed on the limiting portion 2262 near the rotating end. A first abutment 227 is disposed on the side of the limiting part 2262 near the rotating end, and a second abutment 228 is disposed on the side of the second main body 210 near the rotating end. The first abutment 227 and the second abutment 228 can undergo elastic deformation. By setting the first abutment 227 and the second abutment 228, the rigid contact between the second main body 210 and the limiting part 2262 and the first swing arm 222 is reduced, thereby reducing the damage to the first swing arm 222 during use and improving the service life of the alignment device.

[0035] The first swing arm 222 is provided with a first mounting hole 223 on the side near the second body 210. The first elastic component is abutted in the first mounting hole 223 and abuts against the second body 210. The first mounting hole 223 enables the first elastic component to be stably mounted between the first swing arm 222 and the second body 210. The first elastic component can be fixed in the first mounting hole 223 by bonding, welding or other means. The rotating end, the first mounting hole 223 and the rotating shaft 225 are arranged sequentially along the first direction 10.

[0036] Please see Figure 7 In some embodiments, the second docking component 240 includes a second connector 241, a second elastic member 244, a second swing arm 245, and a second bearing 246. The second connector 241 is connected to the second body 210 and forms a cavity 242 with an opening facing the first body 110. The second swing arm 245 is disposed within the cavity 242 and at least partially exposed through the opening of the second connector 241, and the second swing arm 245 may be rotatably connected within the cavity 242. The second elastic member 244 is disposed within the cavity 242 and abuts against the second swing arm 245 and the second connector 241. When a force is applied in the third direction 30, the second swing arm 245 can swing within the cavity 242 along the third direction 30. The second bearing 246 is rotatably connected to the second swing arm 245 and located outside the second connector 241. The second bearing 246 is used for limiting and adapting with the second receiving position 131.

[0037] After the first docking component 220 and the first receiving position 121 complete the alignment, the second docking component 240 is brought closer to the second receiving position 131 by rotating the second main body 210. When the second swing arm 245 approaches the second receiving position 131, the second bearing 246 abuts against the second receiving position 131, thereby causing the second receiving position 131 to apply a force away from the second receiving position 131 in the third direction 30, so that the second swing arm 245 swings in the third direction 30, thus reserving space for the second bearing 246 to enter the second receiving position 131. Until the second main body 210 completes the rotation, the second elastic element 244 drives the second swing arm 245 to swing, causing the second bearing 246 to fall into the second receiving position 131, so that the second bearing 246 and the second receiving position 131 are matched at the upper limit in the second direction 20, forming a snap-fit ​​effect. The cavity 242 formed by the second connector 241 is provided with a second assembly hole 243. The second elastic member 244 can be disposed in the second assembly hole 243. The second elastic member 244 is disposed in the second assembly hole 243 and abuts against the bottom wall of the second assembly hole 243 and the second swing arm 245, thereby stably providing swing support for the second swing arm 245 in the third direction 30.

[0038] The first alignment component 100 further includes a second alignment member 130, on which a second receiving position 131 is formed, and the second receiving position 131 is a second groove with an opening facing the third direction 30.

[0039] In some embodiments, the second alignment assembly 200 further includes a third connector 250 and a third bearing 251. The third connector 250 is connected to the second body 210, and the third bearing 251 is rotatably connected to the third connector 250. The third connector 250 is adapted to limit and abut against the second alignment member 130 in the first direction 10. When the second body 210 rotates to bring the second alignment member closer to the second alignment member 130, the third bearing 251 rotatably abuts against the side of the second alignment member 130. The third bearing 251 forms a limiting abutment with the second alignment member 130 in the first direction 10, further improving the accuracy of alignment.

[0040] Please see Figure 8 The second aspect of this application also provides a material handling system, which includes a machine 260, a transfer device 270, and an alignment device as provided in any of the first aspects of this application. The alignment device will not be described again here. A first alignment component 100 is connected to the machine 260, and a second alignment component 200 is connected to the transfer device 270. It can be understood that the transfer device 270 can be the aforementioned trolley or other devices with mobility functions.

[0041] In summary, this application provides an alignment device, including a first alignment component 100 for connecting a machine base 260 and a second alignment component 200 for connecting a trolley, for quickly and accurately aligning the trolley and the machine base 260. The first alignment component 100 is connected to the machine base 260 via a first body 110, and the second alignment component 200 is connected to the trolley via a second body 210. When alignment is required, the side of the trolley equipped with the second alignment component 200 is moved closer to the side of the machine base 260 equipped with the first alignment component. On one side of component 100, firstly, the first docking component 220 is moved closer to the first receiving position 121 until the first bearing 224 on the first docking component 220 is matched with the first receiving position 121. Then, the second body 210 is rotated so that the second docking component 240 is moved closer to the second receiving position 131. The second docking component 240 abuts against the second alignment component 130 through the second bearing 246, thereby causing the second swing arm 245 to be moved away from the second receiving position 131 by force. As the second body 210 rotates, the second bearing 246... The 6 gradually falls into the second receiving position 131 and engages with it, thus creating a limiting fit between the second receiving position 131 and the second docking component 240 in the second direction 20. As the second bearing 246 falls into the second receiving position 131, the third bearing 251 on the second main body 210 abuts against the side of the second alignment component 130, forming a limiting abutment in the first direction 10. This completes the alignment process. When it is necessary to separate the trolley from the machine platform 260, the second main body rotates around the axis of the first bearing 224. 210, causing the second main body 210 to rotate away from the first main body 110. When the second bearing 246 moves, it is abutted against the third direction 30 by the second alignment member 130, which applies a force away from the second receiving position 131. This, combined with the force applied to the second bearing 246 in the second direction 20 away from the first main body 110 when the second main body 210 rotates, causes the second bearing 246 to disengage from the second receiving position 131. Then, the first bearing 224 is moved away from the first receiving position 121, thus completing the disengagement of the trolley from the machine 260.

[0042] It should be understood that the modular structure diagrams shown in the accompanying drawings are merely illustrative and do not necessarily include all the connections between structures. In the description of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0044] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0046] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific implementations of this application, but the scope of protection of this application 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 this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An alignment device, characterized in that, include: A first alignment component is used to connect to a first target, and the first alignment component includes a first body and a first receiving position and a second receiving position disposed at a distance from each other on the same side of the first body along a first direction. The second alignment component is used to connect to the second target, and the second alignment component includes a second body, a first docking component, a second docking component and a first elastic component. The first docking component and the second docking component are spaced apart and disposed on the same side of the second body. The first docking component is used to adapt to the first receiving position at the upper limit in the first direction. The first elastic component is disposed between the first docking component and the second body and provides elastic buffer for the two. The second docking component is used to adapt to the second receiving position at the upper limit in the second direction. Applying a force away from the second receiving position to the second docking component in the second direction and the third direction can cause the second docking component to disengage from the second receiving position. Wherein, the first direction, the second direction, and any two of the third direction are perpendicular to each other.

2. The alignment device according to claim 1, characterized in that, The first docking component includes a first connector, a first swing arm, and a first bearing. The first swing arm is connected to the second body through the first connector, and the first bearing is rotatably connected to the first swing arm. The first bearing is used to abut and limit the first receiving position.

3. The alignment device according to claim 2, characterized in that, The first docking component also includes a rotating shaft, and the first swing arm is rotatably connected to the first connector through the rotating shaft. The first swing arm can rotate relative to the second body with the third direction line as the axis of rotation.

4. The alignment device according to claim 3, characterized in that, The first alignment component further includes an assembly having a connecting portion and a limiting portion. The connecting portion is connected to the second body, and the limiting portion is located on the side of the first swing arm away from the second body. The first swing arm has a rotating end, which is located between the second body and the limiting part to limit the rotation range of the first swing arm.

5. The alignment device according to claim 4, characterized in that, The first alignment component further includes a first abutting member and a second abutting member. One of the first abutting member and the second abutting member is disposed on the second main body near the rotating end, and the other is disposed on the limiting part near the rotating end. The first abutting member and the second abutting member can undergo elastic deformation.

6. The alignment device according to claim 4, characterized in that, The first swing arm is provided with a first mounting hole on the side near the second body. The first elastic component is abutted in the first mounting hole and abuts against the second body. The rotating end, the first mounting hole and the rotating shaft are arranged sequentially along the first direction.

7. The alignment device according to claim 1, characterized in that, The second docking component includes a second connector, a second elastic member, a second swing arm, and a second bearing. The second connector is connected to the second main body and forms a cavity with an opening facing the first main body. The second swing arm is disposed in the cavity and is at least partially exposed through the opening to the second connector. The second elastic element is disposed in the cavity and abuts against the second swing arm and the second connecting member. When the second swing arm is subjected to a force in the third direction, it can swing in the cavity along the third direction. The second bearing is rotatably connected to the second swing arm and located outside the second connecting member. The second bearing is used to be adapted to the second receiving position limit.

8. The alignment device according to claim 1, characterized in that, The first alignment component further includes a first alignment member, on which the first alignment member is formed the first receiving position, and the first receiving position is a first groove with an opening facing the second mating member along the first direction; And / or, the first alignment component further includes a second alignment member, on which the second alignment member is formed the second receiving position, and the second receiving position is a second groove with an opening facing the third party.

9. The alignment device according to claim 8, characterized in that, The second alignment assembly further includes a third connector and a third bearing. The third connector is connected to the second body, and the third bearing is rotatably connected to the third connector. The third connector is adapted to limit and abut against the second alignment member in the first direction.

10. A material handling system, characterized in that, Includes the alignment device, machine tool, and transfer device as described in any one of claims 1-9; The first alignment component is connected to the machine tool, and the second alignment component is connected to the transfer device.

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