Conveying apparatus and conveying system

Abstract

The application relates to the technical field of goods conveying, in particular to a conveying device and a conveying system. The conveying device comprises a first conveying mechanism, a second conveying mechanism, a first feeding mechanism and a first discharging mechanism. The first conveying mechanism and the second conveying mechanism can convey workpieces. The second conveying mechanism is located below or above the first conveying mechanism. The first feeding mechanism is used for supplying workpieces to the first processing device. The first conveying mechanism is connected with the first feeding mechanism and can convey workpieces to the first feeding mechanism. The first discharging mechanism is used for receiving workpieces processed by the first processing device. The first discharging mechanism is connected with the second conveying mechanism and can convey the workpieces processed by the first processing device to the second conveying mechanism. In the application, the first conveying mechanism and the second conveying mechanism located at different heights are used to convey workpieces in different process states respectively, so that the mixing of workpieces in different process states during transportation can be avoided.

Description

Technical Field

[0001] This application relates to the field of cargo conveying technology, and in particular to a conveying device and a conveying system. Background Technology

[0002] In the field of modern industrial automation, conveying equipment is a key device for achieving efficient and continuous workpiece transport, playing a vital role in improving production efficiency, reducing labor costs, and ensuring the smoothness of the production process. With the continuous development of the manufacturing industry, the processing of workpieces is becoming increasingly complex, often involving multiple steps and requiring transport over long distances on production lines.

[0003] However, in existing related technologies, traditional conveying equipment has exposed a prominent problem when facing long-distance workpiece conveying tasks, namely, it is easy to cause workpiece mixing. Utility Model Content

[0004] This application provides a conveying device that conveys workpieces in different processes in layers, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a conveying device is provided, comprising:

[0006] The first conveying mechanism is capable of conveying workpieces;

[0007] The second conveying mechanism is capable of conveying workpieces, and the second conveying mechanism is located below or above the first conveying mechanism;

[0008] A first feeding mechanism is used to supply workpieces to a first processing equipment; a first conveying mechanism is connected to the first feeding mechanism and is capable of conveying workpieces to the first feeding mechanism; and,

[0009] The first unloading mechanism is used to receive the workpiece processed by the first processing equipment. The first unloading mechanism is connected to the second conveying mechanism and can convey the workpiece processed by the first processing equipment to the second conveying mechanism.

[0010] Optionally, the first feeding mechanism is connected downstream of the first conveying mechanism, and the conveying equipment further includes a second unloading mechanism. The second unloading mechanism is used to receive the workpiece processed by the second processing equipment. The second unloading mechanism is connected upstream of the first conveying mechanism and can transport the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism.

[0011] The second unloading mechanism transports the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism. The first conveying mechanism then transports the workpiece to its downstream location and then to the first loading mechanism, so that the workpiece can be loaded onto the first processing equipment for further processing at the first loading mechanism. The workpiece processed by the first processing equipment is then transported to the second conveying mechanism via the first unloading mechanism. In other words, this conveying equipment can meet the continuous conveying requirements for multiple processing of workpieces and can effectively improve the processing efficiency of workpieces.

[0012] Optionally, there are multiple first feeding mechanisms, which are sequentially connected downstream of the first conveying mechanism. Similarly, there are multiple first unloading mechanisms, which are sequentially connected upstream of the second conveying mechanism. Based on this redundant design of multiple first feeding and unloading mechanisms, even if some of the first feeding and / or unloading mechanisms fail, the conveying equipment can still meet the continuous conveying requirements for multiple workpiece processing operations, thereby improving the stability of the conveying equipment; and / or...

[0013] There are multiple second unloading mechanisms, which are sequentially connected to the upstream of the first conveying mechanism. Based on the redundant design of multiple second unloading mechanisms, even if some of the second unloading mechanisms fail, the conveying equipment can still transport the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism, thereby improving the stability of the conveying equipment.

[0014] Optionally, the conveying device further includes:

[0015] A third conveying mechanism is capable of conveying workpieces, and the third conveying mechanism is located above or below the second conveying mechanism;

[0016] The second feeding mechanism is used to supply workpieces to the third processing equipment. The downstream end of the second conveying mechanism is connected to the second feeding mechanism, enabling the conveying of workpieces to the second feeding mechanism; and,

[0017] The third unloading mechanism is used to receive the workpiece processed by the third processing equipment. The third unloading mechanism is connected to the upstream of the third conveying mechanism and can transport the workpiece processed by the third processing equipment to the upstream of the third conveying mechanism.

[0018] The first unloading mechanism transports the workpiece processed by the first processing equipment to the upstream of the second conveying mechanism. The second conveying mechanism then transports the workpiece downstream and to the second loading mechanism, so that the workpiece can be loaded onto the third processing equipment for further processing at the second loading mechanism. The workpiece processed by the third processing equipment is then transported to the third conveying mechanism via the third unloading mechanism. In other words, the conveying equipment can meet the continuous conveying requirements for at least three processing operations of the workpiece. As the first, second, and third conveying mechanisms respectively transport workpieces in three different process states, the first and second conveying mechanisms are not at the same height, and the second and third conveying mechanisms are not at the same height, which can prevent the workpieces in the three process states from mixing during transportation.

[0019] Optionally, there are multiple second feeding mechanisms, which are sequentially connected downstream of the second conveying mechanism. Similarly, there are multiple third unloading mechanisms, which are sequentially connected upstream of the third conveying mechanism. This redundant design of multiple second feeding mechanisms and multiple third unloading mechanisms ensures that even if some of the second feeding mechanisms and / or some of the third unloading mechanisms fail, the conveying equipment can still meet the continuous conveying requirements for multiple workpiece processing operations, thereby improving the stability of the conveying equipment.

[0020] Optionally, the conveying device is provided with at least one first buffer line, which is capable of conveying workpieces;

[0021] The first buffer line is connected at both ends to the upstream of the first conveying mechanism and the second unloading mechanism, respectively, so that the workpieces conveyed by the second unloading mechanism to the upstream of the first conveying mechanism can be buffered on the first buffer line, thereby facilitating the adjustment of the workpiece conveying speed and the number of workpieces conveyed on the first, second, and third conveying mechanisms by the conveying equipment; and / or,

[0022] The first buffer line is connected at both ends to the downstream end of the first conveying mechanism and the first feeding mechanism, respectively, so that the workpieces conveyed from the downstream end of the first conveying mechanism to the first feeding mechanism can be buffered on the first buffer line, thus preventing blockage of the first conveying mechanism when the first feeding mechanism malfunctions; and / or,

[0023] The first buffer line is connected at both ends to the upstream end of the second conveying mechanism and the first unloading mechanism, respectively, so that the workpieces conveyed by the first unloading mechanism to the upstream end of the second conveying mechanism can be buffered on the first buffer line, thereby facilitating the adjustment of the workpiece conveying speed and the number of workpieces conveyed on the first, second, and third conveying mechanisms; and / or,

[0024] The first buffer line is connected at both ends to the downstream end of the second conveying mechanism and the second feeding mechanism, respectively, so that the workpieces conveyed from the downstream end of the second conveying mechanism to the second feeding mechanism can be buffered on the first buffer line, thus preventing blockage of the second conveying mechanism when the second feeding mechanism malfunctions; and / or,

[0025] The first buffer line is connected to the upstream of the third conveying mechanism and the third unloading mechanism at both ends, so that the workpieces conveyed by the third unloading mechanism to the upstream of the third conveying mechanism can be buffered on the first buffer line, thereby facilitating the adjustment of the workpiece conveying speed and the number of workpieces conveyed on the first conveying mechanism, the second conveying mechanism and the third conveying mechanism by the conveying equipment.

[0026] Optionally, the first conveying mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0027] The second conveying mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0028] The third conveying mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or

[0029] The first feeding mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0030] The second feeding mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0031] The first unloading mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0032] The second unloading mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0033] The third unloading mechanism has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or

[0034] The first buffer line has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line uses electromagnetic force to achieve non-contact levitation, eliminate mechanical friction, reduce wear, extend equipment life and reduce maintenance costs. In addition, the repeatability accuracy can reach the μm level, which meets the requirements of high-precision transport of workpieces.

[0035] Optionally, the conveying device further includes:

[0036] A fixture for carrying a workpiece, the fixture being transported by a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a first loading mechanism, a second loading mechanism, a first unloading mechanism, a second unloading mechanism, and a third unloading mechanism;

[0037] A return mechanism is provided to transport a fixture. The return mechanism is located below the first, second, and third conveying mechanisms, and its two ends correspond to the upstream end of the first conveying mechanism and the downstream end of the third conveying mechanism, respectively.

[0038] A first lifting platform, capable of conveying a fixture, is located at one end of the return mechanism and downstream of the third conveying mechanism, both corresponding to the first lifting platform; and,

[0039] A first drive assembly is connected to the first lifting platform. The first drive assembly can control the connection between the first lifting platform and one of the ends of the return mechanism and the downstream end of the third conveying mechanism by driving the first lifting platform to rise and fall.

[0040] As a carrier for carrying workpieces and transporting them, the fixture can remove the finished workpiece from the fixture when it is transported downstream of the third conveying mechanism, either manually or with external unloading equipment. At this time, the empty fixture enters the first lifting platform from the downstream of the third conveying mechanism, and is then driven by the first driving component to move the first lifting platform so that it connects with one end of the return mechanism. Finally, the empty fixture on the first lifting platform is transported to one end of the return mechanism and then flows back to the other end of the return mechanism, making it convenient to reuse the empty fixture to carry workpieces at the first conveying mechanism.

[0041] Optionally, there are multiple first lifting platforms and multiple first drive components, and the multiple first drive components are respectively driven connected to multiple first lifting platforms. The conveying device further includes a second drive component, a third drive component, multiple second buffer lines and multiple third buffer lines.

[0042] Multiple second buffer lines can all transport fixtures. The second drive component is driven to connect with multiple second buffer lines. By driving the multiple second buffer lines to move, the second drive component can control one end of the multiple second buffer lines to connect with multiple first lifting platforms respectively, and can control the other end of the multiple second buffer lines to connect alternately with the downstream of the third conveying mechanism.

[0043] Each of the multiple third buffer lines can transport a fixture. The third drive component is driven and connected to the multiple third buffer lines. By driving the multiple third buffer lines to move, the third drive component can control one end of each of the multiple third buffer lines to connect with one of the multiple first lifting platforms respectively, and can control the other end of each of the multiple third buffer lines to alternately connect with one end of the return mechanism.

[0044] First, the second drive component controls one end of multiple second buffer lines to alternately connect with the downstream end of the third conveying mechanism to alternately receive empty buffer fixtures; second, the second drive component controls one end of multiple second buffer lines to connect with multiple first lifting platforms respectively, and the empty fixtures on the multiple second buffer lines are respectively conveyed to the multiple first lifting platforms; the multiple first drive components drive the multiple first lifting platforms to move to connect with multiple third buffer lines respectively, and the empty fixtures on the multiple first lifting platforms are respectively conveyed to the multiple third buffer lines; finally, the third drive component controls the other end of multiple third buffer lines to alternately connect with one end of the return mechanism to convey the empty fixtures on the multiple buffer lines to one end of the return mechanism.

[0045] Optionally, the second feeding mechanism includes:

[0046] A second lifting platform, capable of conveying fixtures, is located at the other end of the return mechanism and upstream of the first conveying mechanism, both corresponding to the second lifting platform; and,

[0047] A fourth drive assembly is connected to the second lifting platform. The fourth drive assembly can drive the second lifting platform to move up and down to control the connection between the second lifting platform and at least one of the other end of the return mechanism, the upstream of the first conveying mechanism, and the second processing equipment.

[0048] When the empty fixture is transported to the other end of the return mechanism, firstly, the fourth drive assembly drives the second lifting platform to connect with the other end of the return mechanism, and the empty fixture at the other end of the return mechanism is transported to the second lifting platform; then the fourth drive assembly drives the second lifting platform to connect with the second processing equipment, and can receive the workpiece processed by the second processing equipment; finally, the fixture carrying the workpiece enters the upstream of the first conveying mechanism under the transport of the second lifting platform, or the fourth drive assembly drives the second lifting platform to connect with the upstream of the first conveying mechanism, and the fixture carrying the workpiece enters the upstream of the first conveying mechanism under the transport of the second lifting platform.

[0049] Optionally, the first loading mechanism includes a third lifting platform and a fifth drive assembly. The third lifting platform is capable of conveying fixtures, and the fifth drive assembly is drivenly connected to the third lifting platform. By driving the third lifting platform to rise and fall, the fifth drive assembly controls the connection between the third lifting platform and at least one of the first conveying mechanism and the first processing equipment, thereby enabling the first loading mechanism to be suitable for loading first processing equipment at different heights; and / or,

[0050] The first unloading mechanism includes a fourth lifting platform and a sixth drive assembly. The fourth lifting platform is capable of conveying fixtures, and the sixth drive assembly is driven to the fourth lifting platform, enabling it to control the connection between the fourth lifting platform and at least one of the second conveying mechanism and the first processing equipment by driving the fourth lifting platform to rise and fall. This allows the first unloading mechanism to be adapted for unloading from the first processing equipment at different heights; and / or,

[0051] The second loading mechanism includes a fifth lifting platform and a seventh drive assembly. The fifth lifting platform is capable of conveying fixtures, and the seventh drive assembly is driven to the fifth lifting platform, enabling it to control the connection between the fifth lifting platform and at least one of the second conveying mechanism and the third processing equipment by driving the fifth lifting platform to rise and fall. This allows the second loading mechanism to be adaptable to loading third processing equipment at different heights; and / or,

[0052] The third unloading mechanism includes a sixth lifting platform and an eighth drive assembly. The sixth lifting platform is capable of conveying fixtures, and the eighth drive assembly is driven to the sixth lifting platform. It can drive the sixth lifting platform to rise and fall, thereby controlling the connection between the sixth lifting platform and at least one of the third conveying mechanism and the third processing equipment, so that the third unloading mechanism can be adapted to unloading from the third processing equipment at different heights.

[0053] According to a second aspect of this application, a conveying system is provided, comprising:

[0054] The conveying equipment described in the first aspect above; and,

[0055] The dispatch center interacts with the conveying equipment and can control the conveying equipment based on the dynamics of workpiece conveying.

[0056] In the conveying equipment of this application embodiment, the workpiece can be conveyed, processed and re-conveyed sequentially and continuously with the cooperation of the first conveying mechanism, the first feeding mechanism, the first unloading mechanism and the second conveying mechanism. Furthermore, by using the first conveying mechanism and the second conveying mechanism located at different heights to convey workpieces in different process states respectively, it is possible to avoid mixing of workpieces in different process states during transportation.

[0057] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0058] 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 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.

[0059] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0060] Figure 1 This is a first-view structural schematic diagram of the conveying device provided in an exemplary embodiment of this disclosure.

[0061] Figure 2 yes Figure 1 A structural schematic diagram of the conveying equipment shown from a second perspective.

[0062] Figure 3 yes Figure 2 A magnified view of a portion at point A shown.

[0063] Figure 4 yes Figure 1 The diagram shows the structure of the first buffer line, the first conveying mechanism, the second unloading mechanism, and the partial return mechanism of the conveying equipment.

[0064] Figure 5 yes Figure 1The diagram shows the structure of the first lifting platform, first drive assembly, second drive assembly, third drive assembly, part of the third conveying mechanism, and part of the return mechanism of the conveying equipment.

[0065] Explanation of reference numerals in the attached figures:

[0066] 1. First conveying mechanism; 2. Second conveying mechanism; 3. Third conveying mechanism;

[0067] 4. First feeding mechanism; 401. Third lifting platform; 402. Fifth drive assembly;

[0068] 5. First unloading mechanism; 501. Fourth lifting platform; 502. Sixth drive assembly;

[0069] 6. Second unloading mechanism; 601. Second lifting platform; 602. Fourth drive assembly;

[0070] 7. Second feeding mechanism; 701. Fifth lifting platform; 702. Seventh drive assembly;

[0071] 8. Third unloading mechanism; 801. Sixth lifting platform; 802. Eighth drive assembly;

[0072] 9. First buffer line; 10. Fixture; 11. Recirculation mechanism; 12. First lifting platform; 13. First drive assembly; 14. Second drive assembly; 15. Third drive assembly; 16. Second buffer line; 17. Third buffer line; 18. Rotary platform. Detailed Implementation

[0073] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0074] According to a first aspect of this application, a conveying device is provided, in conjunction with... Figure 1-2 It is known that the conveying equipment includes a first conveying mechanism 1, a second conveying mechanism 2, a first feeding mechanism 4, and a first unloading mechanism 5. The first conveying mechanism 1 and the second conveying mechanism 2 can convey workpieces. The second conveying mechanism 2 is located below or above the first conveying mechanism 1. The first feeding mechanism 4 is used to supply workpieces to the first processing equipment. The first conveying mechanism 1 is connected to the first feeding mechanism 4 and can convey workpieces to the first feeding mechanism 4. The first unloading mechanism 5 is used to receive workpieces processed by the first processing equipment. The first unloading mechanism 5 is connected to the second conveying mechanism 2 and can convey the workpieces processed by the first processing equipment to the second conveying mechanism 2.

[0075] In some embodiments, the first feeding mechanism 4 is connected downstream of the first conveying mechanism 1, and the conveying device further includes a second unloading mechanism 6. The second unloading mechanism 6 is used to receive the workpiece processed by the second processing equipment. The second unloading mechanism 6 is connected upstream of the first conveying mechanism 1 and can transport the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism 1.

[0076] The second unloading mechanism 6 transports the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism 1. The first conveying mechanism 1 transports the workpiece to its downstream location and then to the first loading mechanism 4, so that the workpiece can be loaded onto the first processing equipment for further processing at the first loading mechanism 4. The workpiece processed by the first processing equipment is then transported to the upstream of the second conveying mechanism 2 via the first unloading mechanism 5. In other words, this conveying equipment can meet the continuous conveying requirements when the workpiece is processed multiple times, and can effectively improve the processing efficiency of the workpiece.

[0077] In some embodiments, there are multiple first feeding mechanisms 4, which are sequentially connected downstream of the first conveying mechanism 1; and there are multiple first unloading mechanisms 5, which are sequentially connected upstream of the second conveying mechanism 2. Based on this redundant design of multiple first feeding mechanisms 4 and multiple first unloading mechanisms 5, even if some of the first feeding mechanisms 4 and / or some of the first unloading mechanisms 5 fail, the conveying equipment can still meet the continuous conveying requirements for multiple workpiece processing operations, thereby improving the stability of the conveying equipment; and / or,

[0078] There are multiple second feeding mechanisms 6, which are sequentially connected to the upstream of the first conveying mechanism 1. Based on the redundant design of multiple second feeding mechanisms 6, even if some of the second feeding mechanisms 6 fail, the conveying equipment can still transport the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism 1, thereby improving the stability of the conveying equipment.

[0079] In some embodiments, the conveying device further includes:

[0080] The third conveying mechanism 3 is capable of conveying workpieces, and is located above or below the second conveying mechanism 2;

[0081] The second feeding mechanism 7 is used to supply workpieces to the third processing equipment. The second conveying mechanism 2 is connected downstream of the second feeding mechanism 7, enabling it to convey workpieces to the second feeding mechanism 7; and...

[0082] The third unloading mechanism 8 is used to receive the workpiece processed by the third processing equipment. The third unloading mechanism 8 is connected to the upstream of the third conveying mechanism 3 and can transport the workpiece processed by the third processing equipment to the upstream of the third conveying mechanism 3.

[0083] The first unloading mechanism 5 transports the workpiece processed by the first processing equipment to the upstream of the second conveying mechanism 2. The second conveying mechanism 2 then transports the workpiece downstream and to the second loading mechanism 7, so that the workpiece can be loaded at the second loading mechanism 7 to the third processing equipment for further processing. The workpiece processed by the third processing equipment is then transported to the third conveying mechanism 3 by the third unloading mechanism 8. That is, by transporting the workpiece in the three process states respectively through the first conveying mechanism 1, the second conveying mechanism 2, and the third conveying mechanism 3, the conveying equipment can meet the continuous conveying requirements of at least three processing operations of the workpiece. Furthermore, the first conveying mechanism 1 and the second conveying mechanism 2 are not at the same height, and the second conveying mechanism 2 and the third conveying mechanism 3 are not at the same height, which can prevent the workpieces in the three process states from mixing during transportation.

[0084] For example, the first conveying mechanism 1 and the third conveying mechanism 3 are located above the upstream and downstream of the second conveying mechanism 2, respectively.

[0085] In some embodiments, there are multiple second feeding mechanisms 7, which are sequentially connected downstream of the second conveying mechanism 2. Similarly, there are multiple third unloading mechanisms 8, which are sequentially connected upstream of the third conveying mechanism 3. Based on this redundant design of multiple second feeding mechanisms 7 and multiple third unloading mechanisms 8, even if some of the second feeding mechanisms 7 and / or some of the third unloading mechanisms 8 fail, the conveying equipment can still meet the continuous conveying requirements for multiple workpiece processing operations, thereby improving the stability of the conveying equipment.

[0086] In some embodiments, the conveying device is provided with at least one first buffer line 9, which is capable of conveying workpieces;

[0087] The first buffer line 9 is connected at both ends to the upstream of the first conveying mechanism 1 and the second unloading mechanism 6, respectively, so that the workpieces conveyed by the second unloading mechanism 6 to the upstream of the first conveying mechanism 1 can be buffered on the first buffer line 9, thereby facilitating the adjustment of the workpiece conveying speed and the number of workpieces conveyed on the first conveying mechanism 1, the second conveying mechanism 2 and the third conveying mechanism 3 by the conveying equipment; and / or,

[0088] The first buffer line 9 is connected at both ends to the downstream end of the first conveying mechanism 1 and the first feeding mechanism 4, respectively, so that the workpieces conveyed from the downstream end of the first conveying mechanism 1 to the first feeding mechanism 4 can be buffered on the first buffer line 9, and when the first feeding mechanism 4 fails, it can prevent blockage of the first conveying mechanism 1; and / or,

[0089] The first buffer line 9 is connected at both ends to the upstream of the second conveying mechanism 2 and the first unloading mechanism 5, respectively, so that the workpieces conveyed by the first unloading mechanism 5 to the upstream of the second conveying mechanism 2 can be buffered on the first buffer line 9, thereby facilitating the adjustment of the workpiece conveying speed and the number of workpieces conveyed on the first conveying mechanism 1, the second conveying mechanism 2 and the third conveying mechanism 3; and / or,

[0090] The first buffer line 9 is connected at both ends to the downstream end of the second conveying mechanism 2 and the second feeding mechanism 7, respectively, so that the workpieces conveyed from the downstream end of the second conveying mechanism 2 to the second feeding mechanism 7 can be buffered on the first buffer line 9, and when the second feeding mechanism 7 malfunctions, it can prevent blockage of the second conveying mechanism 2; and / or,

[0091] The first buffer line 9 is connected at both ends to the upstream of the third conveying mechanism 3 and the third unloading mechanism 8, respectively, so that the workpieces conveyed by the third unloading mechanism 8 to the upstream of the third conveying mechanism 3 can be buffered on the first buffer line 9, thereby facilitating the adjustment of the workpiece conveying speed and the number of workpieces conveyed on the first conveying mechanism 1, the second conveying mechanism 2 and the third conveying mechanism 3 by the conveying equipment.

[0092] In some embodiments, the first conveying mechanism 1 has a magnetically levitated conveyor line, which can convey workpieces. When conveying workpieces, the magnetically levitated conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece conveying; and / or

[0093] The second conveying mechanism 2 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0094] The third conveying mechanism 3 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0095] The first feeding mechanism 4 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or

[0096] The second feeding mechanism 7 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0097] The first unloading mechanism 5 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or

[0098] The second unloading mechanism 6 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or

[0099] The third unloading mechanism 8 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line utilizes electromagnetic force to achieve non-contact levitation, eliminating mechanical friction, reducing wear, extending equipment life, and lowering maintenance costs. Furthermore, the repeatability accuracy can reach the μm level, meeting the requirements for high-precision workpiece transport; and / or,

[0100] The first buffer line 9 has a magnetic levitation conveyor line, which can transport workpieces. When transporting workpieces, the magnetic levitation conveyor line uses electromagnetic force to achieve non-contact levitation, eliminate mechanical friction, reduce wear, extend equipment life, and reduce maintenance costs. In addition, the repeatability accuracy can reach the μm level, which meets the requirements of high-precision transport of workpieces.

[0101] For example, a magnetic levitation conveyor line is an industrial automated conveying device based on magnetic levitation technology. It achieves dynamic adjustment of length, shape, and speed by adjusting the magnetic field strength and current. It adopts a non-contact material transfer method, eliminating the physical wear problem of traditional mechanical chain conveyors. It features high speed, high precision, and low maintenance. Furthermore, the magnetic levitation conveyor line has a compensation function, which can compensate for the positional deviation of the workpiece during transport to ensure the consistency of processing. This allows the repeated positioning accuracy deviation of multiple workpieces during transportation to be within -0.02mm to 0.02mm.

[0102] In some embodiments, combined with Figure 3-5 It can be seen that the conveying equipment also includes:

[0103] The fixture 10 is used to carry the workpiece. The fixture 10 can be transported by a magnetic levitation conveyor line, such as the magnetic levitation conveyor lines on the first conveyor mechanism 1, the second conveyor mechanism 2, the third conveyor mechanism 3, the first loading mechanism 4, the second loading mechanism 7, the first unloading mechanism 5, the second unloading mechanism 6 and the third unloading mechanism 8.

[0104] The return mechanism 11 is capable of conveying the fixture 10. The return mechanism 11 is located below the first conveying mechanism 1, the second conveying mechanism 2 and the third conveying mechanism 3, and the two ends of the return mechanism 11 correspond to the upstream of the first conveying mechanism 1 and the downstream of the third conveying mechanism 3, respectively.

[0105] The first lifting platform 12 is capable of conveying the fixture 10. One end of the return mechanism 11 and the downstream end of the third conveying mechanism 3 are both corresponding to the first lifting platform 12; and,

[0106] The first drive assembly 13 is driven to the first lifting platform 12. The first drive assembly 13 can drive the first lifting platform 12 to rise and fall, so as to control the connection between the first lifting platform 12 and one of the return mechanism 11 and the downstream of the third conveying mechanism 3.

[0107] The fixture 10 serves as a carrier for carrying and transporting workpieces. When the workpieces are transported downstream of the third conveying mechanism 3, the completed workpieces can be removed from the fixture 10 manually or by external unloading equipment. At this time, the empty fixture 10 enters the first lifting platform 12 from the downstream of the third conveying mechanism 3. The first lifting platform 12 is then driven to move by the first driving assembly 13 so that the first lifting platform 12 is connected to one end of the return mechanism 11. Finally, the empty fixture 10 on the first lifting platform 12 is transported to one end of the return mechanism 11 and then returned to the other end of the return mechanism 11 under the transport of the return mechanism 11. This makes it convenient to put the empty fixture 10 back into the first conveying mechanism 1 to carry the workpiece.

[0108] In some embodiments, there are multiple first lifting platforms 12 and multiple first drive components 13, and the multiple first drive components 13 are respectively driven connected to multiple first lifting platforms 12. The conveying device also includes a second drive component 14, a third drive component 15, multiple second buffer lines 16 and multiple third buffer lines 17.

[0109] Multiple second buffer lines 16 can all transport fixtures 10. The second drive assembly 14 is driven to connect with multiple second buffer lines 16. By driving the multiple second buffer lines 16 to move, the second drive assembly 14 can control one end of the multiple second buffer lines 16 to connect with multiple first lifting platforms 12 respectively, and can control the other end of the multiple second buffer lines 16 to connect alternately with one end of the third conveying mechanism 3.

[0110] Multiple third buffer lines 17 can all transport fixtures 10. The third drive assembly 15 is driven to connect with multiple third buffer lines 17. By driving the multiple third buffer lines 17 to move, the third drive assembly 15 can control one end of the multiple third buffer lines 17 to connect with multiple first lifting platforms 12 respectively, and can control the other end of the multiple third buffer lines 17 to alternately connect with one end of the return mechanism 11.

[0111] First, the second drive assembly 14 controls one end of a plurality of second buffer lines 16 to alternately connect with the downstream end of the third conveying mechanism 3, so as to receive and buffer empty fixtures 10 through the plurality of second buffer lines 16; then, the second drive assembly 14 controls one end of the plurality of second buffer lines 16 to connect with a plurality of first lifting platforms 12 respectively, and the empty fixtures 10 on the plurality of second buffer lines 16 are respectively conveyed to the plurality of first lifting platforms 12; the plurality of first drive assemblies 13 drive the plurality of first lifting platforms 12 to move so as to connect with a plurality of third buffer lines 17 respectively, and the empty fixtures 10 on the plurality of first lifting platforms 12 are respectively conveyed to the plurality of third buffer lines 17; finally, the third drive assembly 15 controls the other end of the plurality of third buffer lines 17 to alternately connect with one end of the return mechanism 11, so as to convey the empty fixtures 10 on the plurality of buffer lines to one end of the return mechanism 11.

[0112] In some embodiments, the second feeding mechanism 6 includes:

[0113] The second lifting platform 601 is capable of conveying the fixture 10. The other end of the return mechanism 11 and the upstream end of the first conveying mechanism 1 both correspond to the second lifting platform 601; and,

[0114] The fourth drive assembly 602 is driven to the second lifting platform 601. The fourth drive assembly 602 can drive the second lifting platform 601 to rise and fall, so as to control the connection between the second lifting platform 601 and at least one of the other end of the return mechanism 11, the upstream of the first conveying mechanism 1, and the second processing equipment.

[0115] When the empty fixture 10 is conveyed to the other end of the return mechanism 11, firstly, the fourth drive assembly 602 can drive the second lifting platform 601 to move and connect with the other end of the return mechanism 11, and the empty fixture 10 at the other end of the return mechanism 11 is conveyed onto the second lifting platform 601; then the fourth drive assembly 602 drives the second lifting platform 601 to move and connect with the second processing equipment, and can receive the workpiece processed by the second processing equipment; finally, the fixture 10 carrying the workpiece enters the upstream of the first conveying mechanism 1 under the conveying of the second lifting platform 601, or the fourth drive assembly 602 drives the second lifting platform 601 to move and connect with the upstream of the first conveying mechanism 1, and the fixture 10 carrying the workpiece enters the upstream of the first conveying mechanism 1 under the conveying of the second lifting platform 601.

[0116] For example, a first buffer line 9 is also provided at one end of the return mechanism 11 so that when the fourth drive component 602 drives the second lifting platform 601 to move, one end of the return mechanism 11 is connected to the second lifting platform through the first buffer line 9.

[0117] In some embodiments, the first loading mechanism 4 includes a third lifting platform 401 and a fifth drive assembly 402. The third lifting platform 401 is capable of conveying the fixture 10. The fifth drive assembly 402 is drivenly connected to the third lifting platform 401 and can control the connection between the third lifting platform 401 and at least one of the first conveying mechanism 1 and the first processing equipment by driving the third lifting platform 401 to rise and fall, so that the first loading mechanism 4 can be adapted to loading the first processing equipment at different heights; and / or,

[0118] The first unloading mechanism 5 includes a fourth lifting platform 501 and a sixth drive assembly 502. The fourth lifting platform 501 is capable of conveying the fixture 10. The sixth drive assembly 502 is drivenly connected to the fourth lifting platform 501 and can control the connection between the fourth lifting platform 501 and at least one of the second conveying mechanism 2 and the first processing equipment by driving the fourth lifting platform 501 to rise and fall, so that the first unloading mechanism 5 can be adapted to unloading from the first processing equipment at different heights; and / or,

[0119] The second loading mechanism 7 includes a fifth lifting platform 701 and a seventh drive assembly 702. The fifth lifting platform 701 is capable of conveying the fixture 10. The seventh drive assembly 702 is drivenly connected to the fifth lifting platform 701 and can control the connection between the fifth lifting platform 701 and at least one of the second conveying mechanism 2 and the third processing equipment by driving the fifth lifting platform 701 to rise and fall, so that the second loading mechanism 7 can be adapted to loading the third processing equipment at different heights; and / or,

[0120] The third unloading mechanism 8 includes a sixth lifting platform 801 and an eighth drive assembly 802. The sixth lifting platform 801 can transport the fixture 10. The eighth drive assembly 802 is driven to the sixth lifting platform 801 and can control the connection between the sixth lifting platform 801 and at least one of the third conveying mechanism 3 and the third processing equipment by driving the sixth lifting platform 801 to rise and fall, so that the third unloading mechanism 8 can be adapted to unloading materials from the third processing equipment at different heights.

[0121] In some embodiments, the second buffer line 16, the third buffer line 17, the first lifting platform 12, the return mechanism 11, the second lifting platform 601, the third lifting platform 401, the fourth lifting platform 501, the fifth lifting platform 701, and the sixth lifting platform 801, etc., used for conveying, all have magnetic levitation conveyor lines to convey the fixture 10 via the magnetic levitation conveyor lines.

[0122] The first drive assembly 13, the second drive assembly 14, the third drive assembly 15, the fourth drive assembly 602, the fifth drive assembly 402, the sixth drive assembly 502, the seventh drive assembly 702, and the eighth drive assembly 802, etc., all include a motor and a lead screw. The motor and the lead screw work together to drive the corresponding structure connected to it. They can also be linear motors or cylinders or other drive structures.

[0123] For example, each structure of the conveying equipment used to transport the jig 10 has a magnetic levitation conveyor line, and each magnetic levitation conveyor line on the conveying equipment is composed of one or more identical modular magnetic drive units, and the magnetic drive units support hot-swappable replacement to facilitate the maintenance of the conveying equipment; the stators of the magnetic levitation conveyor lines at the same height are connected to each other so that the mover of the magnetic levitation conveyor line can drive the jig 10 to move on the stator of the magnetic levitation conveyor line at the same height, and when facing magnetic levitation conveyor lines at different heights, the jig 10 can be transferred by loading and unloading mechanisms (such as the first loading mechanism 4 and the first unloading mechanism 5 transferring the jig 10 from the first conveying mechanism 1 to the second conveying mechanism 2), so that the jig 10 can stably flow on each magnetic levitation conveyor line.

[0124] Specifically, the magnetic levitation conveyor lines located at the same height are: the magnetic levitation conveyor line of the first conveyor mechanism 1 and the magnetic levitation conveyor line of the first buffer line 9 at the first conveyor mechanism 1 are at the same height; the magnetic levitation conveyor line of the second conveyor mechanism 2 and the magnetic levitation conveyor line of the first buffer line 9 at the second conveyor mechanism 2 are at the same height; the magnetic levitation conveyor line of the third conveyor mechanism 3 and the magnetic levitation conveyor line of the first buffer line 9 at the third conveyor mechanism 3 are at the same height; in addition, for other structures that can be raised and lowered, after their raising and lowering are connected with the corresponding conveyor mechanism, it can be understood that the two are also located at the same height.

[0125] It should be noted that the use of a magnetic levitation conveyor line to transport the jig 10 is only one embodiment of this application. In other embodiments, the conveyor is used to transport the various structures of the jig 10, and other conveying structures can also be used to transport the jig 10, such as belts, chains, or rollers.

[0126] In some embodiments, the first buffer line 9 is connected to the side of the first conveying mechanism 1. The first conveying mechanism 1 is provided with a rotating platform 18 that docks with the first buffer line 9. The rotating platform 18 is capable of rotating and conveying the fixture 10. It can control the fixture 10 conveyed on the first conveying mechanism 1 to rotate in direction and then be conveyed onto the first buffer line 9, or control the fixture 10 from the direction of the first buffer line 9 to rotate in direction and then be conveyed onto the first conveying mechanism 1; and / or,

[0127] The first buffer line 9 is connected to the side of the second conveying mechanism 2. The second conveying mechanism 2 is provided with a rotating platform 18 that docks with the first buffer line 9. The rotating platform 18 can rotate and convey the fixture 10. It can control the fixture 10 conveyed on the second conveying mechanism 2 to rotate in direction and then be conveyed onto the first buffer line 9, or control the fixture 10 from the direction of the first buffer line 9 to rotate in direction and then be conveyed onto the second conveying mechanism 2; and / or,

[0128] The first buffer line 9 is connected to the side of the third conveying mechanism 3. The third conveying mechanism 3 is provided with a rotating platform 18 that docks with the first buffer line 9. The rotating platform 18 can rotate and convey the fixture 10. It can control the fixture 10 conveyed on the third conveying mechanism 3 to rotate in direction and then be conveyed on the first buffer line 9. Alternatively, it can control the fixture 10 from the direction of the first buffer line 9 to rotate in direction and then be conveyed on the third conveying mechanism 3.

[0129] For example, the first processing equipment, the second processing equipment, and the third processing equipment are external equipment used to process workpieces, and are specifically selected according to the processing technology of the workpieces, which is not limited in this application.

[0130] The working process of the conveying equipment:

[0131] First process: The empty fixture 10 at the second unloading mechanism 6 receives the workpiece processed by the second processing equipment. Then, the fixture 10, which carries the workpiece processed by the second processing equipment, is transported to the upstream of the first conveying mechanism 1 via the first buffer line 9 at the second unloading mechanism 6 and the first unloading mechanism 5. Then, the fixture 10 is transported to the downstream of the first conveying mechanism 1 via the magnetic levitation conveying line of the first conveying mechanism 1. The fixture 10 is then transported to the first loading mechanism 4 via the first buffer line 9 at the first loading mechanism 4, so that the fixture 10 can be loaded onto the first processing equipment at the first loading mechanism 4. After the first processing equipment processes the workpiece on the tray again, it transports the tray to the first unloading mechanism 5. The tray is then transported to the upstream of the second conveying mechanism 2 via the first unloading mechanism 5 and the first buffer line 9 at the first unloading mechanism 5.

[0132] Second process: The second conveying mechanism 2 conveys the fixture 10 to the downstream end, and then conveys it to the second feeding mechanism 7 through the first buffer line 9, so that the fixture 10 can be fed to the third processing equipment at the second feeding mechanism 7. After the third processing equipment processes the workpiece on the tray again, it conveys the tray to the third unloading mechanism 8, and conveys the tray to the upstream end of the third conveying mechanism 3 through the third unloading mechanism 8 and the first buffer line 9 at the third unloading mechanism 8. When the third conveying mechanism 3 conveys the fixture 10 to its downstream end, the processed workpiece on the fixture 10 can be removed manually or by external unloading equipment.

[0133] The third process: The empty fixture 10 enters the first lifting platform 12 from the downstream of the third conveying mechanism 3, and then the first lifting platform 12 is driven to move by the first driving component 13 so that the first lifting platform 12 is connected to one end of the return mechanism 11. The empty fixture 10 on the first lifting platform 12 is conveyed to one end of the return mechanism 11 and then flows back to the other end of the return mechanism 11 under the conveying of the return mechanism 11. The third driving component 15 can drive the second lifting platform 601 to move so as to connect with the other end of the return mechanism 11. The empty fixture 10 at the other end of the return mechanism 11 is conveyed to the second lifting platform 601. The third driving component 15 then drives the second lifting platform 601 to move so as to connect with the second processing equipment to continue to receive the workpieces processed by the second processing equipment.

[0134] According to a second aspect of this application, a conveying system is provided, which includes a conveying device and a scheduling center according to any of the above embodiments. The scheduling center interacts with the conveying device and can control the conveying device according to the dynamics of workpiece conveying.

[0135] For example, the dispatch center may include a magnetic drive controller, a relay PLC and multiple master station PLCs. The magnetic drive controller controls each magnetic levitation conveyor line on the conveying equipment. The multiple master station PLCs control the first unloading mechanism 5, the second unloading mechanism 6, the third unloading mechanism 8, the first loading mechanism 4 and the second loading mechanism 7, respectively. The relay PLC relays the PLC signals of the multiple master station PLCs with the magnetic drive signals of the magnetic drive controller, so as to realize the simultaneous interaction between the multiple master station PLCs and the magnetic drive controller.

[0136] In actual operation, the intelligent dispatch center can adjust the conveying speed and position of the fixture 10 based on the dynamic path planning during the conveying of the fixture 10 and the operating status of each machine (machine demand priority, material attributes, real-time congestion).

[0137] In addition, the intelligent dispatch center uses a dynamic model for analysis when making anti-blockage judgments to avoid global refresh of control commands and performs incremental updates; an emergency cut-off system is installed on the conveying equipment, which can quickly cut off the power supply and shut down the loading and unloading actions of each loading and unloading mechanism at the conveying mechanism in case of an accident, and all units discharge synchronously when an emergency stop is triggered; in addition, shielded twisted pair cables are used to transmit control signals in the conveying system (anti-interference capability > 100V / m).

[0138] In the description of this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the related objects before and after it are in an "or" relationship.

[0139] In the description of this application, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0140] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0141] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0142] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A conveying device, characterized in that, include: The first conveying mechanism is capable of conveying workpieces; The second conveying mechanism is capable of conveying workpieces, and the second conveying mechanism is located below or above the first conveying mechanism; A first feeding mechanism is used to supply workpieces to a first processing equipment; a first conveying mechanism is connected to the first feeding mechanism and is capable of conveying workpieces to the first feeding mechanism; and, The first unloading mechanism is used to receive the workpiece processed by the first processing equipment. The first unloading mechanism is connected to the second conveying mechanism and can convey the workpiece processed by the first processing equipment to the second conveying mechanism.

2. The conveying device according to claim 1, characterized in that, The first feeding mechanism is connected downstream of the first conveying mechanism. The conveying equipment also includes a second unloading mechanism, which is used to receive the workpiece processed by the second processing equipment. The second unloading mechanism is connected upstream of the first conveying mechanism and can transport the workpiece processed by the second processing equipment to the upstream of the first conveying mechanism.

3. The conveying device according to claim 2, characterized in that, There are multiple first feeding mechanisms, which are sequentially connected downstream of the first conveying mechanism; and there are multiple first unloading mechanisms, which are sequentially connected upstream of the second conveying mechanism; and / or, There are multiple second feeding mechanisms, which are sequentially connected upstream of the first conveying mechanism.

4. The conveying device according to claim 2, characterized in that, The conveying equipment also includes: A third conveying mechanism is capable of conveying workpieces, and the third conveying mechanism is located above or below the second conveying mechanism; The second feeding mechanism is used to supply workpieces to the third processing equipment. The downstream end of the second conveying mechanism is connected to the second feeding mechanism, enabling the conveying of workpieces to the second feeding mechanism; and, The third unloading mechanism is used to receive the workpiece processed by the third processing equipment. The third unloading mechanism is connected to the upstream of the third conveying mechanism and can transport the workpiece processed by the third processing equipment to the upstream of the third conveying mechanism.

5. The conveying device according to claim 4, characterized in that, There are multiple second feeding mechanisms, which are sequentially connected downstream of the second conveying mechanism. There are also multiple third unloading mechanisms, which are sequentially connected upstream of the third conveying mechanism.

6. The conveying device according to claim 4, characterized in that, The conveying device is equipped with at least one first buffer line, which is capable of conveying workpieces; The first buffer line is connected at both ends to the upstream of the first conveying mechanism and the second unloading mechanism, respectively; and / or, The first buffer line is connected at both ends to the downstream end of the first conveying mechanism and the first feeding mechanism, respectively; and / or, The first buffer line is connected at both ends to the upstream of the second conveying mechanism and the first unloading mechanism, respectively; and / or, The first buffer line is connected at both ends to the downstream end of the second conveying mechanism and the second feeding mechanism, respectively; and / or, The first buffer line is connected at both ends to the upstream of the third conveying mechanism and the third unloading mechanism, respectively.

7. The conveying device according to claim 6, characterized in that, The first conveying mechanism has a magnetically levitated conveyor line, which enables the conveying of workpieces; and / or, The second conveying mechanism has a magnetically levitated conveyor line, which enables the conveying of workpieces; and / or, The third conveying mechanism has a magnetically levitated conveyor line, which enables the conveying of workpieces; and / or, The first feeding mechanism has a magnetic levitation conveyor line, which can transport workpieces via the magnetic levitation conveyor line; and / or, The second feeding mechanism has a magnetic levitation conveyor line, which can transport workpieces via the magnetic levitation conveyor line; and / or, The first unloading mechanism has a magnetic levitation conveyor line, which can transport workpieces via the magnetic levitation conveyor line; and / or, The second unloading mechanism has a magnetic levitation conveyor line, which can transport workpieces via the magnetic levitation conveyor line; and / or, The third unloading mechanism has a magnetic levitation conveyor line, which can transport workpieces via the magnetic levitation conveyor line; and / or, The first buffer line has a magnetic levitation conveyor line, which can transport workpieces via the magnetic levitation conveyor line.

8. The conveying device according to any one of claims 4-7, characterized in that, The conveying equipment also includes: A fixture for carrying a workpiece, the fixture being transported by a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a first loading mechanism, a second loading mechanism, a first unloading mechanism, a second unloading mechanism, and a third unloading mechanism; A return mechanism is provided to transport a fixture. The return mechanism is located below the first, second, and third conveying mechanisms, and its two ends correspond to the upstream end of the first conveying mechanism and the downstream end of the third conveying mechanism, respectively. A first lifting platform, capable of conveying a fixture, is located at one end of the return mechanism and downstream of the third conveying mechanism, both corresponding to the first lifting platform; and, A first drive assembly is connected to the first lifting platform. The first drive assembly can control the connection between the first lifting platform and one of the ends of the return mechanism and the downstream end of the third conveying mechanism by driving the first lifting platform to rise and fall.

9. The conveying device according to claim 8, characterized in that, There are multiple first lifting platforms and multiple first drive components, and the multiple first drive components are respectively driven and connected to multiple first lifting platforms. The conveying device also includes a second drive component, a third drive component, multiple second buffer lines and multiple third buffer lines. Multiple second buffer lines can all transport fixtures. The second drive component is driven to connect with multiple second buffer lines. By driving the multiple second buffer lines to move, the second drive component can control one end of the multiple second buffer lines to connect with multiple first lifting platforms respectively, and can control the other end of the multiple second buffer lines to connect alternately with the downstream of the third conveying mechanism. Each of the multiple third buffer lines can transport a fixture. The third drive component is driven and connected to the multiple third buffer lines. By driving the multiple third buffer lines to move, the third drive component can control one end of each of the multiple third buffer lines to connect with one end of each of the multiple first lifting platforms, and can control the other end of each of the multiple third buffer lines to alternately connect with one end of the return mechanism.

10. The conveying device according to claim 8, characterized in that, The second feeding mechanism includes: A second lifting platform, capable of conveying fixtures, is located at the other end of the return mechanism and upstream of the first conveying mechanism, both corresponding to the second lifting platform; and, A fourth drive assembly is connected to the second lifting platform. The fourth drive assembly can drive the second lifting platform to move up and down to control the connection between the second lifting platform and at least one of the other end of the return mechanism, the upstream of the first conveying mechanism, and the second processing equipment.

11. The conveying device according to any one of claims 4-7, characterized in that, The first feeding mechanism includes a third lifting platform and a fifth drive assembly. The third lifting platform is capable of conveying a fixture, and the fifth drive assembly is driven to the third lifting platform, enabling it to control the connection between the third lifting platform and at least one of the first conveying mechanism and the first processing equipment by driving the third lifting platform to rise and fall; and / or, The first unloading mechanism includes a fourth lifting platform and a sixth drive assembly. The fourth lifting platform is capable of conveying a fixture, and the sixth drive assembly is driven by the fourth lifting platform, enabling it to control the connection between the fourth lifting platform and at least one of the second conveying mechanism and the first processing equipment by driving the fourth lifting platform to rise and fall; and / or, The second feeding mechanism includes a fifth lifting platform and a seventh drive assembly. The fifth lifting platform is capable of conveying a fixture, and the seventh drive assembly is driven by the fifth lifting platform, enabling it to control the connection between the fifth lifting platform and at least one of the second conveying mechanism and the third processing equipment by driving the fifth lifting platform to rise and fall; and / or, The third unloading mechanism includes a sixth lifting platform and an eighth drive assembly. The sixth lifting platform is capable of conveying fixtures, and the eighth drive assembly is driven to the sixth lifting platform. It can control the connection between the sixth lifting platform and at least one of the third conveying mechanism and the third processing equipment by driving the sixth lifting platform to rise and fall.

12. A conveying system, characterized in that, include: The conveying device according to any one of claims 1-11; and, The dispatch center interacts with the conveying equipment and can control the conveying equipment based on the dynamics of workpiece conveying.

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