AGV mobile device for electric vehicle production and working method thereof

Abstract

This invention belongs to the field of vehicle maintenance technology, specifically relating to the maintenance of load-bearing support devices, and particularly to an AGV mobile device for electric vehicle production and its operating method. In the first working state, the support member of the AGV mobile device for electric vehicle production radially outwards to open the sealing ring; in the second working state, the support member releases its support on the sealing ring, and the sealing ring radially retracts inwards. By combining the sealing structure of the sealing ring and the lifting cylinder with the radial opening mechanism of the support member, rapid disassembly and assembly of the sealing ring is achieved. During maintenance, simply switching the working state is sufficient to unlock and support the sealing ring, eliminating the step-by-step disassembly steps required for traditional threaded fastening, effectively shortening maintenance time. Simultaneously, the radial support design of the support member for the sealing ring avoids the plastic deformation problem easily caused by traditional interference fits, maintaining the deformation capacity of the sealing ring during repeated disassembly and assembly, significantly improving the service life of the sealing ring.

Description

Technical Field

[0001] This invention belongs to the field of vehicle maintenance technology, specifically relating to the maintenance of load-bearing support devices, and more particularly to an AGV mobile device for electric vehicle production and its working method. Background Technology

[0002] In the production process of electric vehicles, AGV mobile devices often need to carry and transport the wheel hubs of electric vehicles. Since the side of the wheel hub of an electric vehicle has a protrusion, in order to prevent the wheel hub from shaking when using AGV mobile devices for transportation, the wheel hub needs to be inserted into the middle of the supporting ring disc.

[0003] In related technologies, to facilitate the gripping of the wheel hub during subsequent assembly, the support mechanism of the AGV mobile device can drive the wheel hub to rotate and lift, so that the robot arm can grip it. The rotation and lifting adopts a screw lifting method, which has certain requirements for lifting accuracy. If lubricating oil, external dust or other impurities on the wheel hub enter the screw area, it will cause wear on the screw and affect the lifting accuracy. Therefore, a sealing ring needs to be installed on the upper part of the threaded connection of the rotation and lifting mechanism to seal it and ensure the screw accuracy. However, traditional sealing rings are mostly fixed in the gap between the rotating cylinder and the lifting cylinder by threads or interference fit. When disassembling, special tools are needed to loosen the fasteners step by step, which is complicated and time-consuming. At the same time, the sealing ring is prone to plastic deformation due to long-term friction. Forced disassembly can easily lead to damage, requiring frequent replacement of new parts.

[0004] In addition, the existing method of fixing the sealing rings lacks a quick replacement mechanism. Maintenance personnel need to disassemble and reassemble multiple parts to complete the replacement, which leads to extended time and seriously affects production efficiency.

[0005] To address the aforementioned issues, there is an urgent need for a method that enables quick installation and removal of the sealing ring to reduce the maintenance difficulty of the AGV support mechanism.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0007] This disclosure provides at least one AGV mobile device for electric vehicle production and its operating method.

[0008] In a first aspect, embodiments of this disclosure provide an AGV mobile device for electric vehicle production, comprising:

[0009] AGV body;

[0010] A support mechanism is mounted on the chassis of the AGV body and is used to support the wheel hub of the electric vehicle.

[0011] The supporting mechanism includes:

[0012] A rotating cylinder, which is rotatably mounted on the chassis;

[0013] A drive assembly, which is mounted on the chassis and is used to drive the rotating cylinder to rotate;

[0014] A lifting cylinder extends downward from the middle of the circular disc, which is sleeved outside the rotating cylinder and spirally connected to the rotating cylinder.

[0015] A sealing ring is disposed between the rotating cylinder and the lifting cylinder, and is sleeved on the upper end of the rotating cylinder;

[0016] A support member is provided on the rotating cylinder;

[0017] The support component has two working states;

[0018] In the first working state, the support member expands the sealing ring radially outward to abut the sealing ring against the inner wall of the lifting cylinder;

[0019] In the second working state, the support member releases its support for the sealing ring, and the sealing ring retracts radially inward to facilitate disassembly of the sealing ring.

[0020] In one optional embodiment, the inner wall of the sealing ring is provided with an annular groove in the radial direction;

[0021] The upper end of the rotating cylinder extends outward to form a retaining ring fitted into the annular groove of the sealing ring;

[0022] The outer wall of the retaining ring is provided with a receiving groove in the radial direction;

[0023] The support member is disposed within the receiving groove;

[0024] In the first working state, the support extends from the receiving groove and abuts against the side wall of the annular groove to push the sealing ring radially outward, thereby abutting the sealing ring against the inner wall of the lifting cylinder;

[0025] In the second working state, the support member is received into the receiving groove, the support for the sealing ring is released, and the sealing ring retracts radially inward to facilitate the removal of the sealing ring.

[0026] In one alternative embodiment, the support member includes:

[0027] A rotating shaft, one end of which is rotatably disposed at the bottom of the receiving groove, and the other end passing through the top of the receiving groove and extending out from the top surface of the retaining ring;

[0028] A retaining rod, which is fixedly connected to the rotating shaft;

[0029] A driving component is disposed on the top surface of the retaining ring and is used to drive the rotating shaft to rotate, thereby causing the abutment rod to extend out of or be received into the receiving groove.

[0030] In one alternative implementation, the drive element includes:

[0031] A drive ring is embedded in the top surface of the retaining ring and is concentrically arranged with the rotating cylinder;

[0032] A connecting shaft is disposed on the drive ring;

[0033] A sleeve, which is fitted onto the connecting shaft;

[0034] The sleeve extends a drive block toward the side wall of the rotating shaft;

[0035] The sidewall of the rotating shaft extends radially outward to form a plug that mates with the slot of the drive block;

[0036] An external force drives the drive ring to rotate, which in turn causes the drive block to drive the rotating shaft to rotate.

[0037] In one optional implementation, the drive further includes:

[0038] Turn the handle;

[0039] The rotating handle is located on the top surface of the retaining ring and is connected to the drive ring.

[0040] In one alternative embodiment, the drive element further includes an extrusion plate:

[0041] The extrusion plate is disposed above the drive ring, and one end of the extrusion plate is elastically connected to the drive ring through an extrusion spring, while the other end is fixedly connected to the top surface of the retaining ring through a connecting post.

[0042] One end of the compression spring is fixedly connected to the compression plate, and the other end abuts against the drive ring.

[0043] In one alternative embodiment, a gap is provided between the sidewall of the annular groove and the outer wall of the retaining ring to facilitate quick disassembly of the sealing ring in the second working state.

[0044] In one alternative embodiment, the support mechanism further includes:

[0045] Quick-release accessories;

[0046] The quick-release auxiliary component is located at the top of the rotating cylinder;

[0047] In the first working state, the quick-release auxiliary component separates from the sealing ring;

[0048] In the second working state, the quick-release auxiliary component abuts against the top of the sealing ring and squeezes the side of the sealing ring to deform the sealing ring radially inward to form a recess, so as to facilitate the removal of the sealing ring.

[0049] In one optional embodiment, the quick-release accessory includes:

[0050] A connecting rod, one end of which is inserted into a circular tube on the top surface of the rotating cylinder and elastically connected to the top surface of the rotating cylinder by a return spring, and the other end is provided with a conical head;

[0051] The outer wall of the sealing ring extends axially upward to form a sealing flange;

[0052] When the return spring is in its initial state, the lower end face of the conical head is lower than the top face of the sealing flange.

[0053] Secondly, this disclosure also provides a method of operation for an AGV mobile device used in electric vehicle production as described above, comprising:

[0054] The driving component drives the rotating cylinder to rotate, causing the supporting annular disk to descend to its lowest point;

[0055] Release the support of the support component on the sealing ring;

[0056] After removing and maintaining the sealing ring, install it on the rotating cylinder;

[0057] External force is used to push the sealing ring radially outward by the support member, so that the sealing ring abuts against the inner wall of the lifting cylinder, thus completing the maintenance.

[0058] The beneficial effects of this invention are that the AGV mobile device for electric vehicle production and its working method combine the sealing structure of the sealing ring and the lifting cylinder with the radial expansion mechanism of the support component, achieving a quick disassembly and assembly function for the sealing ring. During maintenance, the sealing ring can be unlocked and supported simply by switching the working state of the support component, eliminating the step-by-step disassembly steps required for traditional threaded fastening and effectively shortening maintenance time. Simultaneously, the radial support design of the support component for the sealing ring avoids the plastic deformation problem easily caused by traditional interference fits, maintaining the deformation capacity of the sealing ring during repeated disassembly and assembly, significantly improving the service life of the sealing ring.

[0059] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0060] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0061] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0062] Figure 1 A schematic diagram of the structure of an AGV mobile device for electric vehicle production provided in an embodiment of this disclosure;

[0063] Figure 2 A cross-sectional view of a portion of the structure of an AGV mobile device for electric vehicle production provided in an embodiment of this disclosure;

[0064] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0065] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0066] Figure 5 This is a partial structural schematic diagram of the supporting annular disk provided in an embodiment of the present disclosure;

[0067] Figure 6 This is a schematic diagram showing the state in which the support member opens the sealing ring in the first state according to an embodiment of the present disclosure;

[0068] Figure 7 This is a schematic diagram showing the state when the support member releases its support for the sealing ring in the second state, as provided in the embodiments of this disclosure.

[0069] Figure 8 This is a schematic diagram showing how the driving seal ring forms a radial indentation when the quick-release auxiliary component provided in the disclosed embodiment is pressed down.

[0070] In the diagram: 100, AGV body; 200, support mechanism; 210, rotating cylinder; 211, retaining ring; 2111, receiving groove; 220, drive assembly; 230, support ring disc; 240, lifting cylinder; 250, sealing ring; 251, annular groove; 260, support component; 261, rotating shaft; 262, supporting rod; 263, drive component; 2631, drive ring; 2632, connecting shaft; 2633, sleeve; 2633a, drive block; 2633b, insert block; 264, rotating handle; 265, extrusion plate; 270, quick-release auxiliary component; 271, connecting rod; 272, conical head; 300 - recess. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0072] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0073] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0074] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0075] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0076] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0077] Research has revealed that the AGV support mechanism in related technologies uses threads or interference fits to place the sealing ring in the gap between the rotating cylinder and the lifting cylinder. Disassembly requires the use of special tools to loosen the fasteners step by step, which makes disassembly time-consuming and laborious, and also easily damages the sealing ring.

[0078] Based on the above research, the present disclosure provides a sealing structure that allows for quick release and support of the sealing ring, eliminating the need for step-by-step disassembly required by traditional threaded fastening, effectively shortening maintenance time, avoiding the plastic deformation problem easily caused by traditional interference fits, maintaining the deformation capacity of the sealing ring during repeated disassembly and assembly, and significantly improving the service life of the sealing ring.

[0079] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0080] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0081] Please see Figure 1 and Figure 2 This disclosure provides an AGV mobile device for electric vehicle production, including: an AGV body 100; a support mechanism 200, which is disposed on the chassis of the AGV body 100 and used to support the wheel hub of the electric vehicle; wherein, the support mechanism 200 includes: a rotating cylinder 210, which is rotatably disposed on the chassis; a drive assembly 220, which is disposed on the chassis and used to drive the rotating cylinder 210 to rotate; a support annular disc 230, the central portion of which extends downward to form a lifting cylinder 240 sleeved on the rotating cylinder 210 and spirally connected to the rotating cylinder 210; and a sealing ring. 250 is disposed between the gap between the rotating cylinder 210 and the lifting cylinder 240, and sleeved on the upper end of the rotating cylinder 210; support member 260 is disposed on the rotating cylinder 210; the support member 260 has two working states; in the first working state, the support member 260 expands the sealing ring 250 radially outward to abut the sealing ring 250 against the inner wall of the lifting cylinder 240; in the second working state, the support member 260 releases the support of the sealing ring 250, and the sealing ring 250 contracts radially inward to facilitate the disassembly of the sealing ring 250.

[0082] By combining the sealing structure of the sealing ring 250 and the lifting cylinder 240 with the radial expansion mechanism of the support member 260, the sealing ring 250 can be quickly disassembled and assembled. During maintenance, simply switching the working state of the support member 260 is sufficient to unlock and support the sealing ring 250, eliminating the step-by-step disassembly required by traditional threaded fastening and effectively shortening maintenance time. Simultaneously, the radial support design of the support member 260 for the sealing ring 250 avoids the plastic deformation problem easily caused by traditional interference fits, maintaining the deformation capacity of the sealing ring 250 during repeated disassembly and assembly, significantly extending the service life of the sealing ring 250.

[0083] Please see Figure 2 and Figure 3 The inner wall of the sealing ring 250 is provided with an annular groove 251 in the radial direction; the upper end of the rotating cylinder 210 extends outward to form a retaining ring 211 for fitting the annular groove 251 of the sealing ring 250; the outer wall of the retaining ring 211 is provided with a receiving groove 2111 in the radial direction; the support member 260 is disposed in the receiving groove 2111; in the first working state, the support member 260 extends out from the receiving groove 2111 and abuts against the side wall of the annular groove 251 to push the sealing ring 250 outward in the radial direction, thereby abutting the sealing ring 250 against the inner wall of the lifting cylinder 240; in the second working state, the support member 260 is received into the receiving groove 2111, releasing the support of the sealing ring 250, and the sealing ring 250 retracts inward in the radial direction to facilitate the disassembly of the sealing ring 250.

[0084] Specifically, by the cooperation between the annular groove 251 provided on the inner wall of the sealing ring 250 and the receiving groove 2111 of the retaining ring 211 of the rotating cylinder 210, it is ensured that the sealing ring 250 is evenly stressed and tightly fitted to the inner wall of the lifting cylinder 240 when it is opened. Figure 6 As shown, avoid displacement or leakage; during disassembly, the support 260 should be fully retracted, as indicated. Figure 7 As shown, the space between the annular groove 251 and the retaining ring 211 allows the sealing ring 250 to contract without obstruction, thus facilitating the removal of the sealing ring 250.

[0085] Please see Figure 3 The support member 260 includes: a rotating shaft 261, one end of which is rotatably disposed at the bottom of the receiving groove 2111, and the other end of which passes through the top of the receiving groove 2111 and extends out from the top surface of the retaining ring 211; a supporting rod 262, which is fixedly connected to the rotating shaft 261; and a driving member 263, which is disposed on the top surface of the retaining ring 211 and is used to drive the rotating shaft 261 to rotate, thereby causing the supporting rod 262 to extend out from or be received into the receiving groove 2111.

[0086] The support component 260 adopts a linkage design of rotating shaft 261, abutment rod 262 and driving component 263. The extension and retraction of abutment rod 262 can be realized by simple operation of driving component 263, thereby accurately controlling the radial displacement of sealing ring 250. The structure is compact and reliable, reducing the complexity of operation.

[0087] Please see Figure 3 and Figure 4 The driving component 263 includes: a driving ring 2631, which is embedded in the top surface of the retaining ring 211 and is concentrically arranged with the rotating cylinder 210; a connecting shaft 2632, which is disposed on the driving ring 2631; and a sleeve 2633, which is sleeved on the connecting shaft 2632. A driving block 2633a extends from the sleeve 2633 toward the side wall of the rotating shaft 261; a plug 2633b extends radially outward from the side wall of the rotating shaft 261 and engages with the slot of the driving block 2633a. An external force drives the driving ring 2631 to rotate, thereby causing the driving block 2633a to drive the rotating shaft 261 to rotate.

[0088] The drive ring 2631 synchronously drives multiple drive blocks 2633a to drive the corresponding rotating shaft 261 to rotate, thereby synchronously driving multiple abutment rods 262 to rotate, supporting or releasing the sealing ring 250.

[0089] Please see Figure 3 and Figure 4The driving component 263 further includes a rotating handle 264; the rotating handle 264 is disposed on the top surface of the retaining ring 211 and connected to the driving ring 2631. Adding the rotating handle 264 as the operating end of the driving component 263 provides a more intuitive and convenient interaction method, improving the equipment's environmental adaptability.

[0090] Please continue reading. Figure 3 and Figure 4 The driving component 263 further includes a compression plate 265, which is disposed above the driving ring 2631. One end of the compression plate 265 is elastically connected to the driving ring 2631 through a compression spring, and the other end is fixedly connected to the top surface of the retaining ring 211 through a connecting post. One end of the compression spring is fixedly connected to the compression plate 265, and the other end abuts against the driving ring 2631.

[0091] By using a compression spring to limit the drive ring 2631, the drive block 2633a and the insert block 2633b are always tightly fitted, avoiding loosening of the connection due to vibration or impact, thereby ensuring the stability of the fit between the holding rod 262 and the sealing ring 250.

[0092] Please continue reading. Figure 3 A gap is provided between the sidewall of the annular groove 251 and the outer wall of the retaining ring 211 to facilitate quick disassembly of the sealing ring 250 in the second working state. The gap design between the annular groove 251 and the outer wall of the retaining ring 211 provides radial contraction space for the sealing ring in the second working state. Combined with the radial release function of the support member 260, this enables quick disassembly of the sealing ring.

[0093] Please see Figure 1 and Figure 5 Quick-release auxiliary component 270; the quick-release auxiliary component 270 is disposed on the top of the rotating cylinder 210; in the first working state, the quick-release auxiliary component 270 is separated from the sealing ring 250; in the second working state, the quick-release auxiliary component 270 abuts against the top of the sealing ring 250 and squeezes the side of the sealing ring 250, so that the sealing ring 250 deforms radially inward to form a recess 300, such as... Figure 8 As shown, this is to facilitate the removal of the sealing ring 250.

[0094] Specifically, the quick-release auxiliary component 270 includes: a connecting rod 271, one end of which is inserted into the circular tube on the top surface of the rotating cylinder 210 and elastically connected to the top surface of the rotating cylinder 210 via a return spring; the other end is provided with a conical head 272; the outer wall of the sealing ring 250 extends axially upward to form a sealing flange; when the return spring is in its initial state, the lower end surface of the conical head 272 is lower than the top surface of the sealing flange. In the initial state, it avoids the sealing flange to prevent interference; during disassembly, the conical head 272 is pressed down by spring compression, forming a controllable concave deformation 300, assisting in the disassembly of the sealing ring 250.

[0095] At least one embodiment also provides a method of operation applied to the AGV mobile device for electric vehicle production as described above, comprising:

[0096] In step S110, the driving component 263 drives the rotating cylinder 210 to rotate, causing the supporting annular disk 230 to descend to its lowest point;

[0097] Step S120: Release the support of the support member 260 on the sealing ring 250;

[0098] Step S130: After disassembling and maintaining the sealing ring 250, install it on the rotating cylinder 210;

[0099] In step S140, the support member 260 is used to radially expand the sealing ring 250 outward by external force, so that the sealing ring 250 abuts against the inner wall of the lifting cylinder 240, thus completing the maintenance.

[0100] In summary, the present invention provides an AGV mobile device for electric vehicle production, comprising: an AGV body 100; a supporting mechanism 200, which is disposed on the chassis of the AGV body 100 and is used to support the wheel hub of the electric vehicle; wherein, the supporting mechanism 200 includes: a rotating cylinder 210, which is rotatably disposed on the chassis; a driving assembly 220, which is disposed on the chassis and is used to drive the rotating cylinder 210 to rotate; a supporting annular disc 230, the central portion of which extends downward to form a lifting cylinder 240 sleeved on the rotating cylinder 210 and helically connected to the rotating cylinder 210; and a sealing ring. A sealing ring 250 is disposed between the rotating cylinder 210 and the lifting cylinder 240, and sleeved on the upper end of the rotating cylinder 210; a support member 260 is disposed on the rotating cylinder 210; the support member 260 has two working states; in the first working state, the support member 260 expands the sealing ring 250 radially outward to hold the sealing ring 250 against the inner wall of the lifting cylinder 240; in the second working state, the support member 260 releases the support of the sealing ring 250, and the sealing ring 250 contracts radially inward to facilitate the disassembly of the sealing ring 250. By combining the sealing structure of the sealing ring 250 and the lifting cylinder 240 with the radial expansion mechanism of the support member 260, the quick disassembly and assembly function of the sealing ring 250 is realized. During maintenance, only the working state of the support member 260 needs to be switched to complete the unlocking and support of the sealing ring 250, eliminating the step-by-step disassembly steps required by traditional threaded fastening, effectively shortening the maintenance time. Meanwhile, the radial support design of the support member 260 for the sealing ring 250 avoids the plastic deformation problem that is easily caused by traditional interference fits. It can maintain the deformation capability of the sealing ring 250 during repeated disassembly and assembly, and significantly improves the service life of the sealing ring 250.

[0101] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0102] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0103] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0104] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0105] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An AGV mobile device for electric vehicle production, characterized by, The utility model relates to an AGV mobile device for electric vehicle production, which comprises an AGV body (100), a supporting mechanism (200) arranged on the chassis of the AGV body (100) and used for supporting the wheel hub of the electric vehicle, wherein the supporting mechanism (200) comprises a rotating cylinder (210) rotatably arranged on the chassis, a driving assembly (220) arranged on the chassis and used for driving the rotating cylinder (210) to rotate, a supporting circular ring disc (230) with a middle part extending downward to form a lifting cylinder (240) sleeved on the rotating cylinder (210) and screw-connected with the rotating cylinder (210), a sealing ring (250) arranged between the gap between the rotating cylinder (210) and the lifting cylinder (240) and sleeved on the upper end of the rotating cylinder (210), and a supporting piece (260) arranged on the rotating cylinder (210). The inner wall of the sealing ring (250) is provided with an annular groove (251) in the radial direction. The upper end of the rotating cylinder (210) extends outward to form a snap ring (211) for sleeving the annular groove (251) of the sealing ring (250). The outer wall of the snap ring (211) is provided with an accommodating groove (2111) in the radial direction inward. The supporting piece (260) is arranged in the accommodating groove (2111). The supporting piece (260) has two working states. In the first working state, the supporting piece (260) extends out of the accommodating groove (2111) and abuts against the side wall of the annular groove (251) to outwardly expand the sealing ring (250) in the radial direction, so that the sealing ring (250) abuts against the inner wall of the lifting cylinder (240). In the second working state, the supporting piece (260) is accommodated into the accommodating groove (2111) to release the support of the sealing ring (250), and the sealing ring (250) is contracted inwardly in the radial direction to facilitate the disassembly of the sealing ring (250). The supporting piece (260) comprises a rotating shaft (261) rotatably arranged at one end of the bottom of the accommodating groove (2111) and extending out of the top surface of the snap ring (211) at the other end, an abutting rod (262) fixedly connected with the rotating shaft (261), and a driving piece (263) arranged on the top surface of the snap ring (211) and used for driving the rotating shaft (261) to rotate, so that the abutting rod (262) is extended out of or accommodated into the accommodating groove (2111). The driving piece (263) comprises a driving ring (2631) embedded on the top surface of the snap ring (211) and concentrically arranged with the rotating cylinder (210), a connecting shaft (2632) arranged on the driving ring (2631), and a sleeve (2633) sleeved on the connecting shaft (2632). The sleeve (2633) extends out of a driving block (2633a) toward the side wall of the rotating shaft (261). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The side wall of the rotating shaft (261) extends radially outwardly to a plug (2633b) matched with the slot of the driving block (2633a); The driving ring (2631) is driven to rotate by external force, so that the driving block (2633a) drives the rotating shaft (261) to rotate.

3. The AGV mobile device for electric vehicle production of claim 2, wherein the driving member (263) further comprises: a rotating handle (264); The rotating handle (264) is arranged on the top surface of the clamping ring (211) and is connected with the driving ring (2631).

4. The AGV mobile device for electric vehicle production of claim 2, wherein the driving member (263) further comprises a pressing plate (265); The pressing plate (265) is arranged above the driving ring (2631), one end of the pressing plate (265) is elastically connected with the driving ring (2631) through a pressing spring, and the other end is fixedly connected with the top surface of the clamping ring (211) through a connecting column; One end of the pressing spring is fixedly connected with the pressing plate (265), and the other end is abutted against the driving ring (2631).

5. The AGV mobile device for electric vehicle production of claim 1, wherein a space is arranged between the side wall of the annular groove (251) and the outer wall of the clamping ring (211) to facilitate quick disassembly of the sealing ring (250) in the second working state. including: The driving member (263) drives the rotating cylinder (210) to rotate, so that the supporting annular disc (230) is lowered to the lowest position; The support member (260) releases the support of the sealing ring (250); 6. A method of operating an AGV mobile device for producing an electric vehicle as claimed in claim 1, characterized by, After the sealing ring (250) is disassembled and maintained, it is installed on the rotating cylinder (210); The support member (260) is driven by external force to expand the sealing ring (250) radially outwardly, abut the sealing ring (250) against the inner wall of the lifting cylinder (240), and complete the maintenance. ​ ​ ​

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