Transfer device and spraying equipment

Abstract

The utility model belongs to the technical field of automatic equipment, and relates to a transferring device and spraying equipment. The transferring device provided by the embodiment of the utility model comprises a first transferring mechanism and a first driving assembly. The first transferring mechanism is used for transferring a carrier for bearing a product and comprises a first connector and a first moving assembly, the first connector is connected with an external energy supply device and used for being connected with a first connector of the carrier so as to provide energy for the carrier and achieve fixing or releasing of the product through the carrier, and the first moving assembly is in transmission connection with the first connector; the first connector is close to or far away from the first interface of the carrier; and the first driving assembly is used for driving the first transferring mechanism to move back and forth between the two stations. The spraying equipment provided by the embodiment of the utility model comprises a spray head and the transfer device, wherein the spray head is used for spraying paint to the workpiece on the carrier transferred by the transfer device. According to the embodiment of the invention, energy can be provided for the carrier in the transferring process, so that the carrier can fix a product in the transferring process.

Description

Technical Field

[0001] This application belongs to the field of automation equipment technology, and particularly relates to a conveying device in the manufacturing process of new energy battery cells, and more specifically, to a transfer device and a spraying equipment. Background Technology

[0002] In the field of automated manufacturing, efficient and stable product transport is one of the key aspects of achieving automated production. To ensure product stability during transport, existing technologies typically employ various methods to secure products within the carrier, including but not limited to vacuum adsorption, gripper clamping, electromagnetic adsorption, and positioning pin fixing. However, all of these methods require the carrier to be ventilated or powered.

[0003] Currently, most product transport on the market is carried out by flexible conveyor lines. However, the carriers on these flexible conveyor lines cannot be powered or ventilated, which makes it impossible to secure the products during the transfer process. Utility Model Content

[0004] This application provides a transfer device and a spraying equipment that can provide energy to the carrier during the transfer process, so that the carrier can also fix the product during the transfer process.

[0005] The technical solution adopted in this application embodiment is: to provide a transfer device, including:

[0006] A first transfer mechanism for transferring a carrier carrying a product includes a first connector and a first moving component. The first connector is connected to an external energy supply device and is used to connect to a first interface of the carrier to provide energy to the carrier and realize the fixing or release of the product by the carrier. The first moving component is drivenly connected to the first connector to drive the first connector to move closer to or away from the first interface of the carrier.

[0007] The first drive component is used to drive the first transfer mechanism back and forth between the two workstations.

[0008] Optionally, the first connector is provided with a vacuum channel, which is used to connect the vacuum chamber on the carrier and an external vacuum device, so that the carrier can position the product by vacuum adsorption.

[0009] Optionally, the first connector is provided with a probe, which is used to connect to an external power source to power the carrier, so that the carrier can position the product by electromagnetic adsorption.

[0010] Optionally, the first moving component includes a first lifting drive, a first horizontal drive, and a first carrier plate. The first lifting drive is driven to the first connector to drive the first connector to move vertically closer to or away from the first interface of the carrier. The first horizontal drive is driven to the first lifting drive to drive the first lifting drive and the first connector to move horizontally closer to or away from the first interface of the carrier. The first horizontal drive is mounted on the first carrier plate. The first drive assembly is driven to the first carrier plate to drive the first transfer mechanism to move back and forth between the two workstations via the first carrier plate.

[0011] Optionally, the first transfer mechanism further includes a first floating connection assembly, the first connector is connected to the first floating connection assembly, and the first lifting drive is driven to the first floating connection assembly to drive the first connector to move vertically closer to or away from the first interface of the vehicle.

[0012] Optionally, the first floating connection assembly includes a first floating element and a first connecting element, the first connector is mounted on the first connecting element, and the first connecting element is connected to the first lifting drive element through the first floating element.

[0013] Optionally, the first transfer mechanism further includes a first mounting frame and a first guide member. The first mounting frame is movably mounted on the first carrier plate in a horizontal direction. The first guide member and the first lifting drive member are mounted on the first mounting frame. The first connector is connected to the first guide member. The first horizontal drive member is drivenly connected to the first mounting frame to drive the first connector and the first lifting drive member to move closer to or away from the first interface of the carrier in a horizontal direction.

[0014] Optionally, the first mounting bracket is provided with a first limiting part, and the first connector is provided with a first abutting part. The first abutting part is used to abut against the first limiting part to control the vertical movement distance of the first connector.

[0015] Optionally, the first transfer mechanism further includes a second floating component, and the first horizontal drive component is connected to the first mounting bracket via the second floating component.

[0016] Optionally, the first transfer mechanism further includes a second guide, which is mounted on the first carrier plate and connected to the first mounting bracket.

[0017] Optionally, the first carrier plate is provided with a second limiting part, and the bottom of the first mounting frame is provided with a second abutting part. The second abutting part is used to abut against the second limiting part to control the horizontal movement distance of the first mounting frame.

[0018] Optionally, the transfer device further includes a second transfer mechanism and a second drive assembly. The second transfer mechanism is used to alternately transfer the carrier carrying the product with the first transfer mechanism, and the second drive assembly is used to drive the second transfer mechanism to move back and forth between the two workstations.

[0019] This application also provides a spraying device, including a spray head and the aforementioned transfer device, wherein the spray head is used to spray paint onto a workpiece on a carrier transferred by the transfer device.

[0020] The beneficial effects of the transfer device and spraying equipment provided in this application embodiment are as follows: The transfer device in this application embodiment provides energy to the carrier through a first connector, wherein the energy source includes a power source, a pneumatic source, or a hydraulic source, enabling the carrier to fix the product during the transfer process, preventing the product from shifting during the transfer process, and improving the product yield. This automation function reduces manual intervention, lowers labor intensity, improves the level of automation in production, and can better adapt to the needs of modern automated production lines.

[0021] The spraying equipment of this application embodiment includes the above-mentioned transfer device, and therefore has the beneficial effects brought about by the transfer device, which will not be repeated here. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the transfer device provided in the embodiments of this application;

[0024] Figure 2 This is a partial structural schematic diagram of the transfer device provided in the embodiments of this application;

[0025] Figure 3 This is a three-dimensional structural diagram of the first transfer mechanism used in the embodiments of this application;

[0026] Figure 4 A front view of the transfer device and transfer vehicle provided in the embodiments of this application;

[0027] Figure 5This is a side view of the transfer device and transfer vehicle provided in the embodiments of this application.

[0028] The following are the labeling elements in the figure:

[0029] 1. First transfer mechanism; 11. First connector; 12. First moving component; 121. First lifting drive component; 122. First horizontal drive component; 123. First carrier plate; 1231. Second limiting part; 13. First floating connection assembly; 131. First floating component; 132. First connecting component; 1321. First abutment part; 14. First mounting bracket; 141. First limiting part; 142. Second abutment part; 15. First guide component; 16. Second floating component; 17. Second guide component;

[0030] 2. First driving component;

[0031] 3. Second transfer mechanism;

[0032] 4. Second drive component;

[0033] 5. Vehicle; 51. First interface. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] 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 or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0037] 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 one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] Please see Figures 1 to 5 The transfer device provided in the embodiments of this application will now be described. The transfer device provided in the embodiments of this application includes a first transfer mechanism 1 and a first drive component 2.

[0039] The first transfer mechanism 1 is used to transfer the carrier 5 carrying the product. It includes a first connector 11 and a first moving component 12. The first connector 11 is connected to an external energy supply device. The first connector 11 is used to connect to the first interface 51 of the carrier 5 to provide energy to the carrier 5 and realize the fixation or release of the product by the carrier 5. The first moving component 12 is connected to the first connector 11 in a transmission manner to drive the first connector 11 to move closer to or away from the first interface 51 of the carrier 5.

[0040] The first drive component 2 is used to drive the first transfer mechanism 1 to move back and forth between the two workstations.

[0041] The carrier 5 in this embodiment can fix or release the product using vacuum adsorption, electromagnetic adsorption, or mechanical fixing. Mechanical fixing includes using electric or pneumatic methods to drive positioning pins, latches, or grippers on the carrier 5 to fix or release the product. Alternatively, a hydraulic system can be used to drive mechanical components to complete the fixing and releasing of the product.

[0042] Please see Figure 4 and Figure 5 The carrier 5 is located above the first transfer mechanism 1, and two parallel slide rails are mounted above the first transfer mechanism 1. The carrier 5 slides on the slide rails. The carrier 5 is also equipped with a second interface, which can connect to a second connector on the processing station. The second connector on the processing station can also provide power to the carrier 5, enabling the carrier 5 to fix or release the product. The second connector on the processing station can be used alternately with the first connector 11 of the first transfer mechanism 1, which can be completed through precise timing control. When the second connector on the processing station disengages from the second interface of the carrier, the first connector 11 of the first transfer mechanism 1 can immediately connect to the first interface 51 of the carrier 5, achieving uninterrupted fixation of the product by the carrier 5. This ensures the stability of the product transfer process and avoids the risk of product displacement, making the entire production process more efficient and reliable.

[0043] After the first connector 11 of the first transfer mechanism 1 is connected to the first interface 51 of the carrier 5 on the slide rail, the carrier 5 can be moved when the first transfer mechanism 1 moves.

[0044] The external energy supply device can specifically be a power supply device, a gas supply device, or a hydraulic supply device.

[0045] The first moving component 12 can be implemented in various ways, such as a cylinder, a screw and nut mechanism driven by a motor, etc. When transferring the carrier 5, the carrier 5 needs to be fixed on the first transfer mechanism 1. The first moving component 12 drives the first connector 11 to approach and connect with the first interface 51 of the carrier 5. When the carrier 5 is in place, the carrier 5 needs to be separated from the first transfer mechanism 1. The first moving component 12 then drives the first connector 11 away from the first interface 51 of the carrier 5, thereby realizing the separation of the carrier 5 from the first transfer mechanism 1.

[0046] The first drive assembly 2 can employ various drive methods to achieve the reciprocating motion of the first transfer mechanism 1. For example, it can employ a motor-driven belt drive mechanism, a gear and rack drive mechanism, etc.

[0047] Two or more first transfer mechanisms 1 can be provided to transfer the carrier 5 simultaneously, thereby improving the load capacity of the transfer device.

[0048] The transfer device in this embodiment provides energy to the carrier 5 through the first connector 11, wherein the energy source includes a power source, a pneumatic source, or a hydraulic source, enabling the carrier 5 to fix the product during the transfer process, preventing the product from shifting and improving product yield. This automation function reduces manual intervention, lowers labor intensity, and improves the level of automation in production, better meeting the needs of modern automated production lines.

[0049] In one embodiment, a vacuum channel is provided within the first connector 11. The vacuum channel connects the vacuum cavity on the carrier 5 to an external vacuum device, allowing the carrier 5 to position the product by vacuum adsorption. The vacuum channel can connect to the vacuum cavity within the carrier 5 via the first interface 51 connected to the carrier 5. The carrier 5 can be provided with multiple adsorption holes communicating with the vacuum cavity, allowing the product to be adsorbed and positioned through the multiple adsorption holes.

[0050] When the carrier 5 uses vacuum adsorption to fix or release the product, the first connector 11 in this embodiment can be a conical vacuum connector, and the first interface 51 can be a corresponding vacuum interface. The first connector 11 can be made of high-strength hard steel, which ensures accurate positioning while also having a power transmission function, and can directly drive the carrier 5 to run. A flexible head cover made of silicone or urethane can also be fitted on the first connector 11 to meet the performance requirements of cushioning, shock absorption, and sealing.

[0051] In one embodiment, a probe is provided on the first connector 11. The probe is used to connect to an external power source to power the carrier 5, so that the carrier 5 can position the product by electromagnetic adsorption.

[0052] When the carrier 5 uses electromagnetic adsorption to fix or release the product, the first connector 11 can be electrically connected to the first interface 51 of the carrier 5 through a probe to supply power to the carrier 5.

[0053] The probe can be connected to an external power source via a plug and socket, ensuring reliable and convenient connection.

[0054] When the first connector 11 is connected to the first interface 51 of the carrier 5, the probe is connected to the electromagnetic adsorption device on the carrier 5. At this time, the external power supply supplies power to the electromagnetic adsorption device on the carrier 5 through the probe, causing the electromagnetic adsorption device to generate a magnetic field, thereby realizing the electromagnetic adsorption positioning of the product.

[0055] When the product needs to be released, the external power supply is stopped, or the first connector 11 is moved away from the first interface 51 of the carrier 5, and the magnetic field of the electromagnetic adsorption device on the carrier 5 disappears. At this time, the adsorption force between the product and the carrier 5 is released, and the product can be smoothly removed from the carrier 5.

[0056] Please see Figure 3 The first moving component 12 includes a first lifting drive 121, a first horizontal drive 122, and a first carrier plate 123. The first lifting drive 121 is driven to the first connector 11 to drive the first connector 11 to move towards or away from the first interface 51 of the carrier 5 in a vertical direction. The first horizontal drive 122 is driven to the first lifting drive 121 to drive the first lifting drive 121 and the first connector 11 to move towards or away from the first interface 51 of the carrier 5 in a horizontal direction. The first horizontal drive 122 is mounted on the first carrier plate 123. The first drive component 2 is driven to the first carrier plate 123 to drive the first transfer mechanism 1 to move back and forth between the two workstations through the first carrier plate 123.

[0057] The first lifting drive 121 can be a cylinder, a hydraulic cylinder, or an electric lifting device. When it is necessary to connect the first connector 11 to the first interface 51 of the carrier 5, the first lifting drive 121 drives the first connector 11 to move vertically to approach the first interface 51 of the carrier 5, so that the first connector 11 is tightly connected to the first interface 51 of the carrier 5; when it is necessary to separate, the first lifting drive 121 drives the first connector 11 to move vertically to move away from the first interface 51 of the carrier 5, so that the first connector 11 is disengaged from the first interface 51 of the carrier 5.

[0058] The first horizontal drive component 122 can be a cylinder, a hydraulic cylinder, a screw and nut mechanism driven by a motor, or a gear and rack mechanism, etc. When it is necessary to connect the first connector 11 to the first interface 51 of the carrier 5, the first horizontal drive component 122 drives the first lifting drive component 121 and the first connector 11 to move horizontally closer to the first interface 51 of the carrier 5. Then, the first lifting drive component 121 drives the first connector 11 to move vertically closer to the first interface 51 of the carrier 5, so that the first connector 11 is tightly connected to the first interface 51 of the carrier 5. When it is necessary to separate, the first lifting drive component 121 drives the first connector 11 to move vertically away from the first interface 51 of the carrier 5, so that the first connector 11 is disengaged from the first interface 51 of the carrier 5. The first horizontal drive component 122 then drives the first lifting drive component 121 and the first connector 11 to move horizontally away from the first interface 51 of the carrier 5.

[0059] The first carrier plate 123 not only provides an installation base for the first horizontal drive component 122, but also realizes the reciprocating motion of the first transfer mechanism 1 between the two workstations through the transmission connection with the first drive assembly 2.

[0060] The first transfer mechanism 1 also includes a first floating connection assembly 13, a first connector 11 connected to the first floating connection assembly 13, and a first lifting drive 121 connected to the first floating connection assembly 13 for transmission, so as to drive the first connector 11 to move closer to or further away from the first interface 51 of the carrier 5 in the vertical direction through the first floating connection assembly 13.

[0061] The first floating connection assembly 13 can prevent additional stress, wear, jamming, or malfunctions from occurring when the first lifting drive component 121 operates due to installation deviations. The first floating connection assembly 13 may include a rubber flexible joint and a connecting plate. The first joint 11 is mounted on the connecting plate, and the first lifting drive component 121 is connected to the connecting plate via the rubber flexible joint.

[0062] Preferably, the first floating connection assembly 13 includes a first floating member 131 and a first connecting member 132. The first connector 11 is mounted on the first connecting member 132, and the first connecting member 132 is connected to the first lifting drive member 121 through the first floating member 131.

[0063] The first floating component 131 can be a planar floating joint or a spherical floating joint, which allows for a certain degree of angular and displacement deviation. This avoids additional stress, wear, jamming, or malfunctions caused by installation deviations when the first lifting drive component 121 is in operation, ensuring stable and normal operation of the equipment and improving the service life and performance of the first lifting drive component 121.

[0064] The first transfer mechanism 1 also includes a first mounting frame 14 and a first guide member 15. The first mounting frame 14 is movably mounted on the first carrier plate 123 in the horizontal direction. The first guide member 15 and the first lifting drive member 121 are mounted on the first mounting frame 14. The first connector 132 is connected to the first guide member 15. The first horizontal drive member 122 is connected to the first mounting frame 14 in a transmission manner to drive the first connector 11 and the first lifting drive member 121 to move closer to or further away from the first interface 51 of the carrier 5 in the horizontal direction.

[0065] The first mounting bracket 14 is movably mounted on the first carrier plate 123 in a horizontal direction. The first lifting drive component 121 is mounted on the first mounting bracket 14, and the first horizontal drive component 122 is connected to the first mounting bracket 14 for transmission, so as to drive the first connector 11 and the first lifting drive component 121 to move horizontally closer to or further away from the first interface 51 of the carrier 5 through the first mounting bracket 14. This mounting method allows the first mounting bracket 14 to be adjusted in position in the horizontal direction, thereby driving the first lifting drive component 121, the first guide component 15, the first connector 132, and the first connector 11 mounted thereon to move together.

[0066] The first mounting bracket 14 is used to support the first lifting drive component 121, the first guide component 15, the first connector 132, and the first joint 11, providing them with a stable mounting base. The first mounting bracket 14 can be made of sheet metal to ensure sufficient strength and rigidity to withstand various forces generated during the transfer process.

[0067] The first guide member 15 is connected to the first connector 132 and is used to guide the first connector 11 to move in the vertical direction, so as to ensure that the first connector 11 moves smoothly and accurately in the vertical direction.

[0068] The first guide member 15 can be a linear guide, slider or other guiding device to ensure that the first joint 11 moves accurately in the vertical direction and reduce shaking and errors during the movement.

[0069] The first mounting bracket 14 is provided with a first limiting part 141, and the first connector 132 is provided with a first abutting part 1321. The first abutting part 1321 is used to abut against the first limiting part 141 to control the vertical movement distance of the first connector 132.

[0070] The first limiting part 141 is disposed on the first mounting bracket 14 to limit the vertical movement distance of the first connecting member 132. Two or four such parts may be disposed along the vertical direction. The first limiting part 141 may be a limiting block, a limiting screw, a hydraulic buffer, or other limiting device, and its position may be adjusted according to actual needs. The first abutting part 1321 may be a contact device such as an abutting block or an abutting plate.

[0071] When the first lifting drive 121 drives the first connector 132 to move in the vertical direction, the first abutting part 1321 contacts the first limiting part 141, thereby limiting the moving distance of the first connector 132, preventing the first joint 11 from having excessive contact with the first interface 51 of the carrier 5 or preventing the first joint 11 from interfering with other structures, and ensuring the smoothness and reliability of the connection and separation process.

[0072] The first transfer mechanism 1 also includes a second floating element 16, and the first horizontal drive element 122 is connected to the first mounting frame 14 via the second floating element 16.

[0073] The second floating member 16 can specifically adopt the same structure as the first floating member 131. The second floating member 16 can avoid additional stress, wear, jamming or malfunction when the first horizontal drive member 122 is in operation due to installation deviation, ensuring the smooth and normal operation of the equipment and improving the service life and performance of the first horizontal drive member 122.

[0074] The first transfer mechanism 1 also includes a second guide 17, which is mounted on the first carrier plate 123 and connected to the first mounting bracket 14.

[0075] The second guide member 17 can specifically adopt the same structure as the first guide member 15. The second guide member 17 can ensure the accurate movement trajectory of the first mounting bracket 14 in the horizontal direction and reduce swaying and errors during the movement.

[0076] A second limiting part 1231 is provided on the first carrier plate 123, and a second abutting part 142 is provided at the bottom of the first mounting frame 14. The second abutting part 142 is used to abut against the second limiting part 1231 to control the movement distance of the first mounting frame 14 in the horizontal direction.

[0077] The second limiting part 1231 may adopt the same structure as the first limiting part 141, and the second abutting part 142 may adopt the same structure as the first abutting part 1321.

[0078] When the first horizontal drive member 122 drives the first mounting bracket 14 to move in the horizontal direction, the second abutment part 142 contacts the second limiting part 1231, thereby limiting the movement distance of the first mounting bracket 14 and preventing the first mounting bracket 14 from detaching from the first carrier plate 123.

[0079] Please see Figure 1 , Figure 4 and Figure 5 The transfer device also includes a second transfer mechanism 3 and a second drive assembly 4. The second transfer mechanism 3 is used to alternately transfer the carrier 5 carrying the product with the first transfer mechanism 1. The second drive assembly 4 is used to drive the second transfer mechanism 3 back and forth between the two workstations.

[0080] The second transfer mechanism 3 can adopt the same structure as the first transfer mechanism 1, and the second drive component 4 can adopt the same structure as the first drive component 2. By setting up the first transfer mechanism 1 and the second transfer mechanism 3, alternating transfer is achieved, greatly improving transfer efficiency and equipment utilization. While the first transfer mechanism 1 is performing the transfer operation, the second transfer mechanism 3 can perform preparation or return operations, reducing equipment idle time.

[0081] This application also provides a spraying device, including a spray head and a transfer device as described in any of the above embodiments. The spray head is used to spray paint onto a workpiece on a carrier transferred by the transfer device. The spraying device of this application, since it includes the transfer device as described in any of the above embodiments, has the beneficial effects brought by the transfer device in any of the above embodiments, which will not be elaborated further here.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transfer device characterized by comprising: The utility model relates to a kind of first transfer mechanism, for carrying product's carrier, including first joint, first moving assembly, the first joint is connected with external energy supply device, the first joint is used to connect with the first interface of carrier, to provide energy for the carrier, realize the fixation or release of carrier to product, the first moving assembly is drivingly connected with the first joint, to drive the first joint close or far from the first interface of carrier. First drive assembly is used to drive the first transfer mechanism to and fro between two stations. Vacuum passage is arranged in the first joint, and the vacuum passage is used to connect the vacuum cavity on the carrier with external vacuum device, so that the carrier is positioned by vacuum adsorption to product.

2. The transfer device according to claim 1, characterized in that Probe is arranged on the first joint, and the probe is used to connect external power supply to power the carrier, so that the carrier is positioned by electromagnetic adsorption to product.

3. The transfer device of claim 1, wherein, The first moving assembly includes first lifting drive, first horizontal drive and first carrier plate, the first lifting drive is drivingly connected with the first joint, to drive the first joint close or far from the first interface of carrier along vertical direction, the first horizontal drive is drivingly connected with the first lifting drive, to drive the first lifting drive and first joint close or far from the first interface of carrier along horizontal direction, the first horizontal drive is installed on the first carrier plate, and the first drive assembly is drivingly connected with the first carrier plate, to drive the first transfer mechanism to and fro between two stations by the first carrier plate.

4. The transfer device according to any one of claims 1 to 3, characterized in that The first transfer mechanism further includes first floating connection assembly, the first joint is connected with the first floating connection assembly, and the first lifting drive is drivingly connected with the first floating connection assembly, to drive the first joint close or far from the first interface of carrier along vertical direction by the first floating connection assembly.

5. The transfer device of claim 4, wherein, The first floating connection assembly includes first float and first connecting piece, the first joint is installed on the first connecting piece, and the first connecting piece is drivingly connected with the first lifting drive by first float.

6. The transfer device of claim 5, wherein The first transfer mechanism further includes first mounting bracket and first guide, the first mounting bracket is movably installed on the first carrier plate along horizontal direction, the first guide and first lifting drive are installed on the first mounting bracket, the first connecting piece is connected with the first guide, and the first horizontal drive is drivingly connected with the first mounting bracket, to drive the first joint, first lifting drive close or far from the first interface of carrier along horizontal direction.

7. The transfer device of claim 6, wherein First limiting portion is arranged on the first mounting bracket, and first abutting portion is arranged on the first connecting piece, and the first abutting portion is used to abut with the first limiting portion, to control the moving distance of the first connecting piece in vertical direction.

8. The transfer device of claim 7, wherein, The first transfer mechanism further includes second float, and the first horizontal drive is drivingly connected with the first mounting bracket by the second float.

9. The transfer device of claim 7, wherein, The first transfer mechanism further includes second guide, and the second guide is installed on the first carrier plate, and the second guide is connected with the first mounting bracket.

10. The transfer device of claim 7, wherein, ​ 11. The transfer device of claim 7, wherein, The first carrier plate is provided with a second limiting part, and the bottom of the first mounting frame is provided with a second abutting part used for abutting with the second limiting part to control the moving distance of the first mounting frame in the horizontal direction.

12. The transfer device of claim 1, wherein, The second transfer mechanism is used for transferring the carrier carrying the product with the first transfer mechanism alternately, and the second driving assembly is used for driving the second transfer mechanism to and from the two stations.

13. A spray coating apparatus characterized by, The transfer device comprises a nozzle and the transfer device according to any one of claims 1-12, and the nozzle is used for spraying paint on the workpiece on the carrier transferred by the transfer device.

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