Line intelligent sequencing device and workpiece sequencing method

Abstract

The application discloses a production line intelligent sorting device and a workpiece sorting method. The production line intelligent sorting device comprises a production area, an assembly line, a first rough sorting area, a fine sorting area, a first warehouse reversing area, a feeding area, a first transfer machine, a second transfer machine and a third transfer machine. The production area is used for producing workpieces. The assembly line is used for assembling other parts on finished workpieces. The first rough sorting area, the fine sorting area, the first warehouse reversing area, the second warehouse reversing area and the feeding area are used for moving the workpieces in a first direction. The first transfer machine, the second transfer machine and the third transfer machine are used for moving the workpieces in the first direction and a second direction perpendicular to the first direction. In the production line intelligent sorting device and the workpiece sorting method, the coated workpieces can be sequentially subjected to rough sorting and fine sorting, the efficiency is high and safety is ensured, full-process automatic control can be realized, workpieces can be efficiently in and out of the warehouse, large-size workpieces can not frequently occupy the logistics channel, and the workpieces can be sorted.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing production technology, and in particular to an intelligent sorting device for production lines and a workpiece sorting method. Background Technology

[0002] In the production process of machinery such as cranes and excavators, a certain component needs to be painted on the painting line. After painting, it undergoes touch-up painting and is then stored in the warehouse. Production is then scheduled to begin on the assembly line according to the assembly line's production plan. Because the plans for the painting line and the assembly line are not perfectly aligned, a certain amount of inventory needs to be maintained between the two lines to ensure sufficient turnover. This component is a key structural part of the assembly line; other assembly components are assembled onto its frame, ultimately forming the finished vehicle.

[0003] Currently, this component is stored on the ground and its entry and exit are handled by overhead cranes. The entire storage process involves multiple manual operations using overhead cranes for entry, exit, and relocation, which is inefficient, unsafe, and wastes a lot of workers' time. Furthermore, the frequent transfers occupy logistics channels and affect the transfer of other logistics. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an intelligent sorting device and workpiece sorting method for production lines, which can orderly sort incoming workpieces, thereby achieving efficient workpiece warehousing and outbound without frequently occupying logistics channels.

[0005] To achieve the above objectives, the present invention provides an intelligent production line sorting device, comprising a production area, an assembly line, a first rough sorting area, a fine sorting area, a first unloading area, a loading area, a first transfer machine, a second transfer machine, and a third transfer machine. The production area is used to produce workpieces, and the assembly line is used to assemble other components onto the completed workpieces. The first rough sorting area, the fine sorting area, the first unloading area, the second unloading area, and the loading area are used to move the workpieces along a first direction. The first transfer machine, the second transfer machine, and the third transfer machine are used to move the workpieces along the first direction and a second direction perpendicular to the first direction, so that the first transfer machine can transfer the workpieces between the first transfer machine, the production area, the first rough sorting area, the fine sorting area, and the first unloading area; the second transfer machine can transfer the workpieces between the second transfer machine, the assembly line, and the loading area; and the third transfer machine can transfer the workpieces between the third transfer machine, the first rough sorting area, the fine sorting area, and the first unloading area.

[0006] Optionally, the intelligent sorting device for the production line further includes a control module, which is used to perform coarse sorting of the completed workpieces according to the assembly line's online schedule and arrange the workpieces in the first coarse sorting area according to the coarse sorting results, and to perform fine sorting of the workpieces in the first coarse sorting area according to the assembly line's online schedule and arrange the workpieces in the fine sorting area according to the fine sorting results.

[0007] Optionally, during the rough arrangement, the control module is used to place the newly completed workpiece behind the closest workpiece in the first rough arrangement area according to the assembly line's onboarding plan; during the fine arrangement, the control module is used to transfer the workpiece from the first rough arrangement area to the fine arrangement area in an order that completely corresponds to the assembly line's onboarding plan.

[0008] Optionally, the control module is further configured to generate outbound information and send material preparation information for the corresponding workpiece when the workpiece is ready to be transferred from the first coarse sorting area to the fine sorting area.

[0009] Optionally, the intelligent sorting device for the production line also includes a material feeding inlet. When a workpiece arrives at the material feeding inlet, the control module sends pulling information for the corresponding material of the workpiece to deliver the corresponding material to the assembly line.

[0010] Optionally, the intelligent sorting device for the production line further includes a workpiece loading point on the assembly line, which is located at the position where workpieces are loaded onto the assembly line. The control module also pre-stores a maximum workpiece inventory value and a minimum workpiece inventory value. The control module is used to determine whether the number of workpieces in inventory is greater than the maximum workpiece inventory value after the workpiece is completed. If so, the excessive inventory information is fed back to the production area, and production control measures are taken for the production area. The control module is also used to determine whether the number of workpieces in inventory is less than the minimum workpiece inventory value when the workpiece is removed from the assembly line at the workpiece loading point. If so, the insufficient inventory information is fed back to the assembly line, and assembly control measures are taken for the assembly line.

[0011] Optionally, the intelligent sorting device for the production line further includes a paint touch-up area, the production area being a coating line, the paint touch-up area, the second rewinding area, and the loading area being arranged side by side, and the paint touch-up area, the second rewinding area, and the loading area being located in the area between the first transfer machine and the second transfer machine; the first coarse sorting area, the fine sorting area, and the first rewinding area being arranged side by side, and the first coarse sorting area, the fine sorting area, and the first rewinding area being located in the area between the first transfer machine and the third transfer machine;

[0012] The first transfer machine is used to transport completed workpieces from the painting line to the touch-up painting area, and to transport workpieces from the second transfer area to the first transfer area, as well as from the finishing area to the loading area, and from the first roughing area to the first transfer area; the second transfer machine is used to transport workpieces from the touch-up painting area to the second transfer area, and to transport workpieces from the loading area to the assembly line; the third transfer machine is used to transport workpieces from the first transfer area to the first roughing area, and also from the first transfer area to the finishing area. The first transfer machine and the third transfer machine are movably disposed at both ends of the first roughing area, the finishing area, and the first transfer area, respectively, to respectively Aligning with the first coarse sorting area, the fine sorting area, and the first transfer area, the first transfer machine and the second transfer machine are movably disposed at both ends of the second transfer area and the loading area, respectively, to align with the second transfer area and the loading area. The first coarse sorting area and the fine sorting area are both used to transfer workpieces from one end near the third transfer machine to one end near the first transfer machine. The first transfer area is used to transfer workpieces from one end near the first transfer machine to one end near the third transfer machine. The second transfer area is used to transfer workpieces from one end near the second transfer machine to one end near the first transfer machine. The loading area is used to transfer workpieces from one end near the first transfer machine to one end near the second transfer machine.

[0013] Optionally, the intelligent sorting device for the production line further includes a carrying fixture for carrying workpieces. The carrying fixture can be moved along the first direction and placed in the paint touch-up area, the first rough sorting area, the fine sorting area, the first unloading area, the second unloading area, and the loading area. The carrying fixture can also be moved along the first direction and placed on the first transfer machine, the second transfer machine, and the third transfer machine, and can move along the second direction with the first transfer machine, the second transfer machine, and the third transfer machine.

[0014] Optionally, the intelligent sorting device for the production line further includes an empty tooling area arranged side by side with the loading area. The empty tooling area is used to place empty carrying tooling and to move the empty carrying tooling from one end near the second transfer machine to one end near the first transfer machine. The second transfer machine is also used to transport the empty carrying tooling after the workpiece is unloaded to the empty tooling area. The first transfer machine is also used to transfer the empty carrying tooling from the empty tooling area to the first transfer machine.

[0015] Optionally, the intelligent sorting device for the production line further includes a mixing zone arranged side by side with the fine sorting zone. The mixing zone is used to carry empty or full carrying fixtures and to transfer empty or full carrying fixtures from one end near the third transfer machine to one end near the first transfer machine.

[0016] Optionally, the touch-up painting area, the first roughing area, the fineing area, the first rewinding area, the second rewinding area, the loading area, the empty tooling area, the mixed loading area, and the third rewinding area are all tunnel-type structures. Each tunnel includes a first conveyor roller bed, a first chain, and a first drive unit. The first drive unit drives the first chain to move cyclically along the length of the first conveyor roller bed, thereby rotating the first roller of the first conveyor roller bed. The supporting tooling is a skid, and the first conveyor roller bed supports the skid, which in turn supports the workpiece. The first roller drives the skid to move on the first conveyor roller bed. The first transfer machine, the second transfer machine, and the third transfer machine each include a second conveying roller bed, a second chain, a second drive component, a drive wheel, and a third drive component. The second drive component drives the second chain to move cyclically along the length direction of the second conveying roller bed, thereby causing the second roller of the second conveying roller bed to rotate. The second conveying roller bed is used to carry the skid, and the skid is used to carry the workpiece. The second roller is used to drive the skid to move along the first direction on the second conveying roller bed. The third drive component drives the drive wheel to rotate, so as to drive the first transfer machine, the second transfer machine, and the third transfer machine to move along the second direction on the track.

[0017] Optionally, the intelligent sorting device for the production line further includes a rapid outbound area arranged side by side with the loading area. The rapid outbound area is used to transfer workpieces from one end near the first transfer machine to one end near the second transfer machine. The first transfer machine is also used to transfer workpieces from the first rough sorting area to the first transfer machine and to transfer workpieces on the first transfer machine to the rapid outbound area. The second transfer machine is also used to transfer workpieces from the rapid outbound area to the assembly line.

[0018] The present invention also provides a workpiece sorting method, which uses the above-mentioned intelligent sorting device for production lines to sort workpieces, the workpiece sorting method comprising:

[0019] When a workpiece needs to be removed from the coating line, the first transfer machine is controlled to transfer the empty carrying fixture from the empty fixture area or the mixed loading area to the first transfer machine along the first direction.

[0020] Control the first transfer machine to travel to the offline connection station of the coating line, and place the workpiece off the coating line and onto the empty carrier fixture on the first transfer machine;

[0021] The first transfer machine is controlled to travel along the second direction to one end of the paint touch-up area, and the workpiece is transferred to the paint touch-up area for paint touch-up. After the paint touch-up is completed, a work report is generated, and an warehousing task is generated based on the work report.

[0022] According to the warehousing task, the workpieces are stored in the first coarse sorting area or the mixed loading area through the second transfer machine, the second repositioning area, the first transfer machine, the first repositioning area and the third transfer machine, and the inventory information is updated after the workpieces are stored;

[0023] When a workpiece needs to be moved from the first roughing area or the mixed loading area to the fine loading area, outbound information is generated. The first transfer machine, the first reversing area and the third transfer machine are used to transport the workpiece to the material pulling entrance. The material preparation information corresponding to the workpiece is sent according to the production plan of the assembly line and the inventory information of the first roughing area and the mixed loading area.

[0024] When the workpiece arrives at the material feeding inlet, the assembly line feeds the corresponding material to the workpiece and transports it to the assembly line. At the same time, the workpiece is loaded onto the assembly line through the fine sorting area, the first transfer machine, the loading area, and the second transfer machine.

[0025] Optionally, the intelligent sorting device for the production line further includes a third transfer area arranged parallel to the fine sorting area. The third transfer area is used to transfer workpieces from one end closer to the first transfer machine to the other end closer to the third transfer machine. In the step of controlling the first transfer machine to transfer empty carrying fixtures from the empty tooling area or the mixed loading area to the first transfer machine along the first direction, when there are empty carrying fixtures in the empty tooling area, the first transfer machine transfers empty carrying fixtures from the empty tooling area; when there are no empty carrying fixtures in the empty tooling area, the first transfer machine transfers empty carrying fixtures from the mixed loading area. When there is an empty carrying fixture at the end of the mixing area closest to the first transfer machine, the empty carrying fixture is directly transferred from the mixing area. When there is no empty carrying fixture at the end of the mixing area closest to the first transfer machine, the full carrying fixture located on the side of the mixing area where the empty carrying fixture is close to the first transfer machine is transported through the third transfer area to the end of the current mixing area away from the first transfer machine, until the empty carrying fixture is located at the end of the mixing area closest to the first transfer machine. At this time, the first transfer machine transfers the empty carrying fixture from the mixing area.

[0026] The intelligent sorting device and workpiece sorting method of this application can perform coarse sorting and fine sorting of coated workpieces in sequence. It is highly efficient and safe, and can realize full-process automatic control. Therefore, it can realize efficient workpiece entry and exit, eliminate the frequent occupation of logistics channels by large-sized workpieces, and meet the workpiece sorting requirements. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of an intelligent production line sorting device according to an embodiment of the present invention.

[0029] Figure 2 for Figure 1 The diagram shows the structure of the tunnel of the intelligent sorting device for the production line.

[0030] Figure 3 for Figure 1 The diagram shows the structure of the transfer machine of the intelligent sorting device for the production line. Detailed Implementation

[0031] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] The terms “first,” “second,” “third,” etc., are used merely to distinguish numerical values ​​or elements with similar properties, rather than to indicate or imply relative importance or a specific order.

[0034] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0035] This invention provides an intelligent sorting device for production lines. Please refer to [link / reference]. Figure 1 One embodiment of the intelligent production line sorting device includes a coating line 11, a touch-up painting area 13, an assembly line 15, a first roughing area 17, a fineing area 19, a first unloading area 21, a second unloading area 23, a loading area 25, a first transfer machine 27, a second transfer machine 29, and a third transfer machine 31. The coating line 11 is used to coat workpieces 100. The touch-up painting area 13 is used to touch up the paint on workpieces 100 completed on the coating line 11. The assembly line 15 is used to assemble other components onto workpieces 100 that have been touched up in the touch-up painting area 13 to form a product. The touch-up painting area 13, the first roughing area 17, the fineing area 19, the first unloading area 21, the second unloading area 23, and the loading area 25 are used to move workpieces 100 along a first direction. The first transfer machine 27, the second transfer machine 29, and the third transfer machine 31 are used to move the workpiece 100 along a first direction and a second direction perpendicular to the first direction, so that the first transfer machine 27 can transfer the workpiece between the first transfer machine 27, the painting line 11, the touch-up painting area 13, the first roughing area 17, the fineing area 19, the first unloading area 21, and the second unloading area 23; the second transfer machine 29 can transfer the workpiece between the second transfer machine 29, the touch-up painting area 13, the assembly line 15, the second unloading area 23, and the loading area 25; and the third transfer machine 31 can transfer the workpiece between the third transfer machine 31, the first roughing area 17, the fineing area 19, and the first unloading area 21. In this embodiment, the workpiece needs to be painted on the painting line 11 and then touched up in the touch-up paint area 13 before it can be sent to the assembly line 15. It can be understood that the workpiece can also be sent to the assembly line after production. In this case, the painting line 11 can be replaced by other types of production areas, and the touch-up paint area 13 can also be omitted when no touch-up paint is needed.

[0036] Specifically, workpiece 100 can be the frame of a crane. The frame typically needs to be painted on the painting line, then touched up in the touch-up area before being sent to the assembly line for assembly. During assembly, components such as the suspension mechanism are usually assembled onto the frame to form the chassis. The suspension mechanism and other components are the materials corresponding to workpiece 100. It can be understood that workpiece 100 can also be other components such as the crane's turntable.

[0037] The intelligent sorting device for production lines in this embodiment can perform coarse sorting and fine sorting of coated workpieces in sequence. It is highly efficient and safe, and can realize full-process automatic control. Therefore, it can achieve efficient entry and exit of workpieces, eliminate the frequent occupation of logistics channels by large-sized workpieces, and meet the sorting requirements of the workpieces themselves.

[0038] In this embodiment, the coating area 11 is provided with an offline transfer station 111. The workpiece 100 is taken off the coating area 11 at the offline transfer station 111 and transferred to the first transfer machine 27.

[0039] In this embodiment, the paint touch-up area 13, the second transfer area 23, and the loading area 25 are arranged side by side, and the paint touch-up area 13, the second transfer area 23, and the loading area 25 are located in the area between the first transfer machine 27 and the second transfer machine 29; the first coarse sorting area 17, the fine sorting area 19, and the first transfer area 21 are arranged side by side, and the first coarse sorting area 17, the fine sorting area 19, and the first transfer area 21 are located in the area between the first transfer machine 27 and the third transfer machine 31. The first transfer machine 27 is used to transport the finished workpiece 100 from the painting line 11 to the touch-up painting area 13, and to transport the workpiece 100 from the second transfer area 23 to the first transfer area 21, and also to transport the workpiece 100 from the fine arrangement area 19 to the loading area 25, and also to transport the workpiece 100 from the first rough arrangement area 17 to the first transfer area 21; the second transfer machine 29 is used to transport the workpiece 100 from the touch-up painting area 13 to the second transfer area 23, and also to transport the workpiece 100 from the loading area 25 to the assembly line 15; the third transfer machine 31 is used to transport the workpiece 100 from the first transfer area 21 to the first rough arrangement area 17, and also to transport the workpiece 100 from the first transfer area 21 to the fine arrangement area 19. The first transfer machine 27 and the third transfer machine 31 are movably disposed at both ends of the first coarse sorting area 17, the fine sorting area 19, and the first rewinding area 21, respectively, so as to be aligned with the first coarse sorting area 17, the fine sorting area 19, and the first rewinding area 21, respectively. The first transfer machine 27 and the second transfer machine 29 are movably disposed at both ends of the second rewinding area 23 and the loading area 25, respectively, so as to be aligned with the second rewinding area 23 and the loading area 25, respectively. The first coarse sorting zone 17 and the fine sorting zone 19 are both used to transfer workpiece 100 from the end near the third transfer machine 31 to the end near the first transfer machine 27. The first transfer zone 21 is used to transfer workpiece 100 from the end near the first transfer machine 27 to the end near the third transfer machine 31. The second transfer zone 23 is used to transfer workpiece 100 from the end near the second transfer machine 29 to the end near the first transfer machine 27. The loading zone 25 is used to transfer workpiece 100 from the end near the first transfer machine 27 to the end near the second transfer machine 29. Specifically, in this embodiment, the first transfer zone 21 and the second transfer zone 23 are aligned, and the fine sorting zone 19 and the first coarse sorting zone 17 are aligned.

[0040] In this embodiment, the intelligent sorting device for the production line also includes a support fixture 33, which is used to support the workpiece 100. The support fixture 33 can be moved along the first direction and placed in the paint touch-up area 13, the first rough sorting area 17, the fine sorting area 19, the first unloading area 21, the second unloading area 23 and the loading area 25. The support fixture 33 can also be moved along the first direction and placed in the first transfer machine 27, the second transfer machine 29 and the third transfer machine 31, and can move along the second direction with the first transfer machine 27, the second transfer machine 29 and the third transfer machine 31. Specifically, when it is necessary to move the position of workpiece 100, workpiece 100 can be placed on the carrying fixture 33. When the carrying fixture 33 is placed on the first transfer machine 27, the second transfer machine 29, and the third transfer machine 31, the movement of the first transfer machine 27, the second transfer machine 29, and the third transfer machine 31 will move the carrying fixture 33. When the carrying fixture 33 is placed in the touch-up painting area 13, the first roughing area 17, the fine painting area 19, the first unloading area 21, the second unloading area 23, and the loading area 25, the carrying fixture 33 can move in each area. Specifically, in this embodiment, from the time workpiece 100 comes off the painting line 11 until workpiece 100 is loaded onto the assembly line, workpiece 100 is carried by the carrying fixture 33. Specifically, in this text, the workpiece mentioned between the time workpiece 100 comes off the painting line 11 and the time it is loaded onto the assembly line 15 usually refers to the workpiece placed on the carrying fixture 33.

[0041] In this embodiment, the intelligent sorting device for the production line also includes an empty tooling area 35 arranged parallel to the loading area 25. The empty tooling area 35 is used to place empty carrying tooling 33 and to transfer the empty carrying tooling 33 from one end near the second transfer machine 29 to one end near the first transfer machine 27. The second transfer machine 29 is also used to transport the empty carrying tooling 33 after the workpiece 100 has been unloaded to the empty tooling area 35, and the first transfer machine 27 is also used to transfer the empty carrying tooling 33 from the empty tooling area 35 to the first transfer machine 27. After the workpiece 100 on the carrying fixture 33 on the loading area 25 is transported to the assembly line 15 by the second transfer machine 29, the empty fixture 33 remains on the second transfer machine 29 and is transferred and stored in the empty fixture area 35 by the second transfer machine 29. When the workpiece 100 comes off the painting line 11, the first transfer machine 27 takes out the empty carrying fixture 33 from the empty fixture area 35 and places the workpiece 100 coming off the painting line 11 on the empty carrying fixture 33, forming a full carrying fixture 33.

[0042] In this embodiment, the intelligent sorting device for the production line also includes a rapid outbound area 37 arranged parallel to the loading area 25. The rapid outbound area 37 is used to transfer the workpiece 100 from one end near the first transfer machine 27 to one end near the second transfer machine 29. The first transfer machine 27 is also used to transfer the workpieces from the first coarse sorting area 17 to the first transfer machine 27, and to transfer the workpieces on the first transfer machine 27 to the rapid outbound area 37. The second transfer machine 29 is also used to transfer the workpiece 100 from the rapid outbound area 37 to the assembly line 15. When the production plan of the assembly line 15 requires the workpiece to be loaded onto the assembly line 15 in the shortest possible time, the workpiece can be directly transferred from the first coarse sorting area 17 or the mixed loading area 39 to the first transfer machine 27, and then transferred to the rapid outbound area 37. After that, the workpiece can be directly transported to the loading point 45 of the assembly line 15 by the second transfer machine 29, thereby omitting the sorting step in the fine sorting area 19 and shortening the loading time. Specifically, the rapid outbound area 37 and the first coarse sorting area 17 can be aligned.

[0043] In this embodiment, the intelligent sorting device for the production line also includes a mixing zone 39 arranged side by side with the fine sorting zone 19. The mixing zone 39 is used to carry empty carrying fixtures 33 and / or full carrying fixtures 33 (full carrying fixtures 33 are carrying fixtures containing workpieces 100). The mixing zone 39 is used to transfer empty or full carrying fixtures 33 from one end near the third transfer machine 31 to one end near the first transfer machine 27. Specifically, when the empty fixture zone 35 cannot hold more empty carrying fixtures 33, or the first coarse sorting zone 17 cannot hold more full carrying fixtures 33, empty or full carrying fixtures 33 can be placed in the mixing zone 39. Therefore, the mixing zone 39 may only contain empty carrying fixtures 33, or only full carrying fixtures 33, or both empty and full carrying fixtures 33. Specifically, the touch-up painting zone 13 and the mixing zone 39 can be aligned.

[0044] In this embodiment, the intelligent sorting device for the production line also includes a third transfer area 41 arranged parallel to the fine sorting area 19. The third transfer area 41 is used to transfer workpieces 100 from one end near the first transfer machine 27 to one end near the third transfer machine 31. The third transfer machine 31 is also used to transfer empty or full carrying fixtures 33 from the first transfer area 41 to the mixing area 39. The first transfer machine 27 is also used to transfer empty carrying fixtures 33 from the second transfer area 23 to the first transfer machine 27. The first transfer machine 27 is also used to transfer empty carrying fixtures 33 to the first transfer area 21. The first transfer machine 27 is also used to transport empty carrying fixtures 33 from the mixing area 39 to the off-line position of the coating line 11 to pick up workpieces 100, and is also used to transport workpieces 100 from the mixing area 39 to the third transfer area 41. Specifically, the third transfer area 41 and the empty fixture area 35 are aligned.

[0045] In this embodiment, the first coarse sorting area 17, the fine sorting area 19, the first transfer area 21, the mixed loading area 39, and the third transfer area 41 constitute a sorting library. This sorting library can be a two-layer sorting library. One layer consists of the first coarse sorting area 17, the fine sorting area 19, the first transfer area 21, one mixed loading area 39, and the third transfer area 41. The other layer consists of the three first coarse sorting areas 17 and one mixed loading area 39. The first transfer machine 27 and the third transfer machine 31 are liftable transfer machines (i.e., the first transfer machine 27 and the third transfer machine 31 can move the workpiece 100 along a third direction perpendicular to the first and second directions). The first transfer machine 27 and the third transfer machine 31 are also used to move empty or full carrying fixtures 33 between the first and second layers of the two-layer sorting library. The two-layer sorting library enables efficient storage of the workpiece 100 and reduces storage space. It is understandable that when the storage area is not limited, the sorting warehouse can also be a single-layer structure. Correspondingly, when the sorting warehouse is a single-layer structure, the first transfer machine 27 and the third transfer machine 31 may not have lifting functions. In this embodiment, there are two mixing zones 39 and four first coarse sorting zones 17. It is understood that the number of mixing zones 39 and first coarse sorting zones 17 can be adjusted as needed.

[0046] In this embodiment, there can be two first transfer machines 27. One first transfer machine 27 moves within the area corresponding to the mixing area 39 and the third transfer area 41 on the first layer, the mixing area 39 on the second layer, the empty tooling area 35, and the touch-up painting area 13. The other first transfer machine 27 moves within the area corresponding to the first transfer area 21, the first coarse sorting area 17 and the precision area 19 on the first layer, the three first coarse sorting areas 17 on the second layer, the second transfer area 23, the quick outbound area 37, and the loading area 25. By setting up two first transfer machines 27, materials can be transported more efficiently. It can be understood that when the workload of the first transfer machine 27 is small, only one first transfer machine 27 can be set up. When the workload of the first transfer machine 27 is large, two, three, or even more first transfer machines 27 can be set up depending on the workload. It is understandable that when there is only one first transfer machine 27 or the sorting warehouse is a single layer, the third reversing area 41 can be omitted. The third reversing area 41 is set up because one of the first transfer machines 27 cannot reach the mixed loading area 39. Therefore, the third reversing area 41 is needed to realize the reversing of empty or full carrying fixtures 33 in the mixed loading area 39.

[0047] In this embodiment, the intelligent sorting device for the production line also includes a control module. The control module is used to perform coarse sorting of the workpieces 100 coming off the painting line 11 according to the assembly line 15's online plan and to arrange the workpieces 100 in the first coarse sorting area 17 or the mixed assembly area 39 according to the coarse sorting results. It is also used to perform fine sorting of the workpieces 100 in the first coarse sorting area 17 and the mixed assembly area 39 according to the assembly line 15's online plan and to arrange the workpieces 100 in the fine sorting area 19 according to the fine sorting results.

[0048] Specifically, when assembly line 15 assembles in the order of car number 1, car number 2, car number 3, etc., during the rough sorting process, the control module places the workpiece 100 newly produced from the paint touch-up area 13 behind the closest workpiece 100 in the first rough sorting area 17 or the mixed assembly area 39, based on the car number. For example, Figure 1 The leftmost workpiece in the first coarse row area 17 at the bottom of the second layer corresponds to car number 7, and the most recently produced workpiece from the touch-up paint area 13 corresponds to car number 8 or car number 6. Therefore, this most recently produced workpiece is transported to the left side of the car number 7 corresponding to the workpiece (of course, if at this time...). Figure 1 If the first coarse sorting area 17 at the bottom of the second layer is full, the latest workpiece can be transported to another first coarse sorting area 17 or mixed sorting area 39. Figure 1 In the second layer, the leftmost workpiece in the first coarse sorting zone 17 at the bottom corresponds to car number 7. The most recently produced workpiece from the touch-up painting zone 13 corresponds to car number 9. Since workpiece 100, corresponding to car number 8, has not yet been produced, this most recently produced workpiece 100 is also transported to the left of the workpiece corresponding to car number 7 (at this point, the workpiece 100 closest to workpiece 100 corresponding to car number 9 is the workpiece 100 corresponding to car number 7). After workpiece 100 corresponding to car number 8 comes off the line, it can be placed to the left of workpiece 100 corresponding to car number 9. This completes the coarse sorting of the workpieces.

[0049] Specifically, during fine arrangement, the control module is used to transfer workpieces 100 from the first coarse arrangement area 17 or the mixed assembly area 39 to the fine arrangement area 19 in a sequence that completely corresponds to the assembly line 15's loading plan. For example, when assembly line 15 assembles in the order of car 1, car 2, car 3, etc., the workpieces corresponding to car 1, car 2, car 3, etc., are placed in the fine arrangement area 19 from left to right.

[0050] Specifically, the control module is also used to send material preparation information for the corresponding materials of a workpiece when it is ready to be transferred from the first coarse packing area 17 or the mixed packing area 39 to the fine packing area 19. At this time, material preparation can begin so that the materials can be transported to the assembly line 15 at any time. In this way, subsequent assembly parts can be assembled in advance and in real time, realizing efficient production organization of subsequent parts of the production sequence locking machine.

[0051] In this embodiment, the intelligent sorting device for the production line also includes a material pulling inlet 43, which is located at one end of the fine sorting area 19 near the third transfer machine 31, i.e., the material pulling inlet 43 is located at the entrance 19 of the fine sorting area. When a workpiece arrives at the material pulling inlet 43, the control module sends pulling information to deliver the material corresponding to the workpiece. At this time, the material to be assembled with the workpiece can be transported to the assembly line 15 by manual or automatic delivery. For example, when the workpiece corresponding to car number 9 arrives at the material pulling inlet 43, the control module sends pulling information to deliver the material needed to assemble car number 9. At this time, the material to be assembled with the workpiece is transported to the assembly line 15. Usually, when the workpiece corresponding to car number 9 arrives at the assembly line 15, the corresponding assembly materials have already been transported to the assembly line 15. In this way, on the one hand, the materials are transported to the assembly line 15 in advance to avoid waiting for a certain material when assembling on the assembly line 15; on the other hand, it also avoids temporarily unused materials being transported to the assembly line 15 and occupying space. Therefore, it can realize timely and sequential delivery of assembly line delivery according to the fixed order. It is understood that the material feeding inlet 43 can also be located in other positions, such as between the fine sorting area 19 and the loading area 25. The setting of the material feeding inlet 43 can be determined according to the time required to transport the workpiece and the corresponding material. For example, when the time required to transport the workpiece and the corresponding material is short, the material feeding inlet 43 can be set closer to the assembly line 15; when the time required to transport the workpiece and the corresponding material is long, the material feeding inlet 43 can be set further away from the assembly line 15. However, the material feeding inlet 43 cannot be set at the entrance of the fine sorting area 19 further away from the assembly line 15.

[0052] In this embodiment, the intelligent sorting device for the production line also includes a workpiece loading point 45 on the assembly line, which is located at the position where workpieces are loaded onto the assembly line 15. The control module also pre-stores a maximum workpiece inventory value A and a minimum workpiece inventory value B. The control module is used to determine whether the number of workpieces in inventory is greater than the maximum workpiece inventory value A after the workpiece is removed from the paint touch-up area 13. If so, the information that the inventory is too high is fed back to the painting line 11, and production control measures are taken (e.g., the painting line 11 stops operating). If not, the workpiece can be put into storage according to normal rules. The control module is also used to determine whether the number of workpieces in inventory is less than the minimum workpiece inventory value B when the workpiece is removed from the assembly line at the workpiece loading point 45. If so, it means that the inventory is too low and cannot effectively connect the painting line 11 and the assembly line 15, which will cause invalid material calling information to be generated at the material pull inlet 43 and affect the subsequent delivery efficiency. At this time, the information that the inventory is too low can be fed back to the assembly line 15, and the assembly line 15 can be controlled, such as stopping the operation of the assembly line 15 or other measures to ensure the smooth operation of the entire system. If not, the assembly line 15 operates normally. The inventory quantity of workpieces refers to the total number of workpieces in the first coarse sorting zone 17, the mixed sorting zone 39, and the fine sorting zone 19. Among them, the maximum workpiece inventory value A is greater than the minimum workpiece inventory value B.

[0053] In this embodiment, the supporting fixture 33 is equipped with an information card to store information about the workpiece it carries, such as the car number corresponding to the workpiece currently carried by the supporting fixture 33. Specifically, the information card can be an RFID card. Specifically, when a workpiece is taken off the painting line 11 from the off-line docking station 111, the workpiece information on the painting hanger can be written into the information card on the supporting fixture 33 by an RFID reader. In this way, the control module and other components can identify the corresponding workpiece, track the workpiece information in real time, and realize full-process traceability of the workpiece.

[0054] In this embodiment, the control module includes an RCS (Remote Control System), an MES (Manufacturing Execution System), and a WMS (Warehouse Management System). The MES system generates transfer information when a workpiece is removed from the coating line 11 at the off-line transfer station 111 and sends the transfer information to the RCS system. The MES system also transmits the work report information to the WMS system after receiving it from the RCS system. Furthermore, the MES system sends pull information for distributing the corresponding material to the workpiece when it reaches the material feeding inlet 43, and sends workpiece outbound information to the RCS system.The RCS system is used to dispatch the first transfer machine 27 to one end of the empty tooling area 35 upon receiving transfer information, and to transfer the empty load-bearing tool 33 on the empty tooling area 35 to the first transfer machine 27; or to dispatch the first transfer machine 27 to one end of the mixed loading area 39, and to transfer the empty load-bearing tool 33 on the mixed loading area 39 to the first transfer machine 27; the RCS system is also used to generate arrival information and send it to the MES system when a workpiece coming off the painting line 11 is transferred to the first transfer machine 27, and to report the work to the MES system after the workpiece has completed the touch-up painting operation in the touch-up painting area 13; the RCS system is also used to dispatch the second transfer machine 29 to one end of the touch-up painting area 13 after the workpiece has completed the touch-up painting operation in the touch-up painting area 13, and to transfer the empty load-bearing tool 33 on the second transfer machine 29 to the first transfer machine 27. After the workpiece-carrying fixture 33 is transferred to the second transfer machine 29, the second transfer machine 29 is scheduled to move to one end of the second transfer area 23 near the second transfer machine 29. In the second transfer area 23, the workpiece is transferred to one end of the second transfer area 23 near the first transfer machine 27. Then, the first transfer machine 27 is scheduled to move to one end of the second transfer area 23. The RCS system is also used to schedule the first transfer machine 27 to move to one end of the first transfer area 21 after the first transfer machine 27 has transferred the workpiece from the second transfer area 23 to the first transfer machine 27. The RCS system is also used to schedule the third transfer machine 31 to move to one end of the first transfer area 21 after the workpiece in the first transfer area 21 has been transported from one end near the first transfer machine 27 to one end near the third transfer machine 31. After the third transfer machine 31 transfers the workpiece from the first decanting area 21 to the third transfer machine 31, it schedules the third transfer machine 31 to travel to one end of the first coarse sorting area 17 or the mixed loading area 39. The RCS system is also used to schedule the first transfer machine 27 to travel to one end of the first coarse sorting area 17 or the mixed loading area 39 after the workpiece is moved from near the third transfer machine 31 to near the first transfer machine 27 in the first coarse sorting area 17 or the mixed loading area 39, and to schedule the first transfer machine 27 to travel to one end of the first decanting area 21 after the workpiece is transferred from the first coarse sorting area 17 or the mixed loading area 39 to the first transfer machine 27. The RCS system is also used to generate coarse sorting and warehousing information when a workpiece is placed on the first coarse sorting area 17 or the mixed loading area 39. The RCS system is also used to schedule the first transfer machine 27 to travel to one end of the first coarse sorting area 17 or the mixed sorting area 39, and after the first transfer machine 27 transfers the workpiece from the first coarse sorting area 17 or the mixed sorting area 39 to the first transfer machine 27, it schedules the first transfer machine 27 to travel to one end of the first relocation area 21; the RCS system is also used to schedule the third transfer machine 31 to travel to the first relocation area 21 after transporting the workpiece from one end near the first transfer machine 27 to one end near the third transfer machine 31 in the first relocation area 21, and is also used to schedule the third transfer machine 31 to travel to one end of the fine sorting area 19 after the third transfer machine 31 transfers the workpiece to the third transfer machine 31; the RCS system is also used to schedule the third transfer machine 31 to transfer the workpiece to the fine sorting area 19 after receiving the workpiece outbound information.The WMS system generates an inbound task upon receiving work order information and sends it to the RCS system. The WMS system also updates inventory information upon receiving back-coarse sorting inbound information. Furthermore, the WMS system receives loading information from the RCS system after a workpiece is loaded onto assembly line 15 and updates inventory data accordingly. Here, the MES system, RCS system, and WMS system are deeply integrated to achieve unified control and decision-making between the production line and the sorting warehouse, significantly reducing production cycle time. Moreover, the RCS system can balance storage efficiency, scheduling efficiency, and transfer machine efficiency to achieve optimal workpiece transfer paths.

[0055] In this embodiment, please refer to Figure 2 The paint touch-up area 13, the first coarse sorting area 17, the fine sorting area 19, the first unloading area 21, the second unloading area 23, the loading area 25, the empty tooling area 35, the rapid unloading area 37, the mixed loading area 39, and the third unloading area 41 can all be of a tunnel-type structure. The tunnel includes a first conveyor roller bed 131, a first chain (not shown), and a first drive unit (not shown). The first drive unit drives the first chain to move cyclically along the length of the first conveyor roller bed 131, thereby causing the first roller of the first conveyor roller bed 131 to rotate. The supporting tooling 33 can be a skid. The first conveyor roller bed 131 supports the skid, and the skid supports the workpiece 100. As the first roller rotates, it can move the skid on the first conveyor roller bed 131. The direction of movement of the skid is determined by the direction of rotation of the first roller. It is understood that the tunnel can also be used to move the supporting tooling 33 placed on it via belt conveyor or other methods.

[0056] In this embodiment, please refer to Figure 3 The first transfer machine 27, the second transfer machine 29, and the third transfer machine 31 each include a second conveyor roller bed 271, a second chain, a second drive component, a drive wheel, and a third drive component. The second drive component drives the second chain to move cyclically along the length of the second conveyor roller bed 271, thereby rotating the second roller of the second conveyor roller bed 271. The second conveyor roller bed 271 carries a skid, which carries the workpiece 100. As the second roller rotates, the skid can move along the first direction on the second conveyor roller bed 271, and the direction of movement of the skid is determined by the rotation direction of the second roller. The third drive component drives the drive wheel to rotate, thereby moving the first transfer machine 27, the second transfer machine 29, and the third transfer machine 31 along the second direction on the track 47. Specifically, the drive wheel may include a driving wheel and a driven wheel. It is understood that the carrying fixture 33 placed on the second conveyor roller bed 271 can also be moved along the first direction by other means such as belt conveying.

[0057] Specifically, when workpiece 100 needs to be transferred from the tunnel to the first transfer machine 27, the second transfer machine 29, or the third transfer machine 31, the skid can be moved towards the transfer machine via the first conveyor roller bed 131, and at least part of the skid can be placed on the second conveyor roller bed 271. The skid can then be moved further via the second conveyor roller bed 271 until it is fully supported. It is understood that the method by which insight 100 is transferred from the first transfer machine 27, the second transfer machine 29, or the third transfer machine 31 to the tunnel is similar to the above, and will not be repeated here.

[0058] The present invention also provides a workpiece sorting method, which uses the above-mentioned intelligent sorting device for production lines to sort workpieces. The workpiece sorting method includes:

[0059] S11, when a workpiece 100 needs to be removed from the coating line 11, the first transfer machine 27 is controlled to transfer an empty carrying fixture 33 from the empty fixture area 35 or the mixed loading area 39 along the first direction to the first transfer machine 27. Specifically, when there is an empty carrying fixture 33 in the empty fixture area 35, the first transfer machine 27 transfers the empty carrying fixture 33 from the empty fixture area 35; when there is no empty carrying fixture 33 in the empty fixture area 35, the first transfer machine 27 transfers the empty carrying fixture 33 from the mixed loading area 39; and when the end of the mixed loading area 39 closest to the first transfer machine 27 (i.e., the end of the mixed loading area 39 closest to the first transfer machine 27) Figure 1 When there is an empty carrying fixture 33 at the far right end of the mixed loading area 39, the empty carrying fixture 33 is directly transferred from the mixed loading area 39. When there is no empty carrying fixture 33 at the end of the mixed loading area 39 closest to the first transfer machine 27, the full carrying fixture 33 (i.e. carrying workpiece 33 and workpiece 100 on it) located on the side of the mixed loading area 39 where the empty carrying fixture 33 is close to the first transfer machine 27 is transported through the third transfer area 41 to the end of the current mixed loading area 39 away from the first transfer machine 27, until the empty carrying fixture 33 is located at the end of the mixed loading area 39 closest to the first transfer machine 27. At this time, the first transfer machine 27 can transfer the empty carrying fixture 33 from the mixed loading area 39.

[0060] S13, control the first transfer machine 27 to travel to the off-line receiving station 111 of the painting line 11, and remove the workpiece 100 from the painting line 11 and place it on the empty carrier fixture 33 on the first transfer machine 27. Specifically, the workpiece 100 can be transported to the off-line receiving station 111 via an aerial accumulation chain. Specifically, when the workpiece is placed on the carrier fixture 33 after being removed from the line, the workpiece information can be stored on the information card of the corresponding carrier fixture 33.

[0061] S15, control the first transfer machine 27 to travel along the second direction to one end of the paint touch-up area 13, and transfer the workpiece to the paint touch-up area 13 for paint touch-up. After the paint touch-up is completed, generate work report information, and generate warehousing task based on the work report information.

[0062] S17, according to the warehousing task, the workpiece is stored in the first coarse sorting area 17 or the mixed sorting area 39 through the second transfer machine 29, the second transfer area 23, the first transfer machine 27, the first transfer area 21 and the third transfer machine 31, and the inventory information is updated after the workpiece is stored.

[0063] Step S17 specifically includes:

[0064] S171, according to the warehousing task, transport the workpiece to one end near the second transfer machine 29, and transfer the workpiece onto the second transfer machine 29.

[0065] S172, control the second transfer machine 29 to travel to one end of the second transfer area 23, and transfer the workpiece onto the second transfer area 23.

[0066] S173, transport the workpiece to one end of the second transfer area 23 near the first transfer machine 27, and control the first transfer machine 27 to travel to one end of the second transfer area 23 and transfer the workpiece to the first transfer machine 27.

[0067] S174, control the first transfer machine 27 to travel to one end of the first reversing area 21 and transfer the workpiece to the first reversing area 21. The first reversing area 21 transports the workpiece to one end close to the third transfer machine 31.

[0068] S175, control the third transfer machine 31 to travel to one end of the first unloading area 21 and transfer the workpiece to the third transfer machine 31. Then control the third transfer machine 31 to travel to one end of the first roughing area 17 or the mixed loading area 39. The third transfer machine 31 transfers the workpiece to the first roughing area 17 or the mixed loading area 39 and stores the workpiece in the first roughing area 17 or the mixed loading area 39. After storing the workpiece, update the inventory information. Specifically, when there is space in the first roughing area 17, the workpiece can be stored directly in the first roughing area 17. When there is no space in the first roughing area 17, the workpiece is stored in the mixed loading area 39. When storing the workpiece in the first roughing area 17 or the mixed loading area 39, the storage position of the workpiece is determined according to the assembly line 15's loading plan: specifically, according to the assembly line 15's loading plan sequence, the workpiece 100 is placed behind the closest workpiece 100 already stored in the first roughing area 17 or the mixed loading area 39.

[0069] S19 When a workpiece needs to be moved from the first coarse sorting area 17 or the mixed sorting area 39 to the fine sorting area 19, outbound information is generated. The first transfer machine 27, the first relocation area 21 and the third transfer machine 31 are used to transport the workpiece to the material feeding inlet 43. According to the production plan of the assembly line 15 and the inventory information of the first coarse sorting area 17 and the mixed sorting area 39, the material preparation information of the corresponding material of the workpiece is sent, that is, the workpiece is fitted together.

[0070] Specifically, step S19 includes:

[0071] S191, after receiving the workpiece outbound information, control the first transfer machine 27 to travel to one end of the first coarse sorting area 17 or the mixed loading area 39, and transfer the workpiece onto the first transfer machine 27.

[0072] S193, control the first transfer machine 27 to travel to one end of the first transfer area 21 and transfer the workpiece to the first transfer area 21. The first transfer area 21 transports the workpiece to one end close to the third transfer machine 31, that is, to the material feeding inlet 43.

[0073] S21, when the workpiece arrives at the material feeding inlet 43, the assembly line 15 feeds the corresponding material of the workpiece and transports the corresponding material to the assembly line 15. At the same time, the workpiece is loaded onto the assembly line 15 through the fine sorting area 19, the first transfer machine 27, the loading area 25 and the second transfer machine 29. Specifically, loading the workpiece onto the assembly line 15 includes: controlling the third transfer machine 31 to travel to one end of the first unloading area 21 and transferring the workpiece to the third transfer machine 31; controlling the third transfer machine 31 to travel to one end of the fine sorting area 19; the third transfer machine 31 transferring the workpiece to the fine sorting area 19; the fine sorting area 19 transporting the workpiece to one end close to the first transfer machine 27; controlling the first transfer machine 27 to travel to one end of the fine sorting area 19 and transferring the workpiece to the first transfer machine 27; the first transfer machine 27 transferring the workpiece to the loading area 25; controlling the second transfer machine 29 to travel to one end of the loading area 25 and transferring the workpiece to the second transfer machine 29; the second transfer machine 29 traveling to the loading point 45 of the assembly line 15 and transferring the workpiece to the loading point 45, thus completing the loading; after the loading is completed, the second transfer machine 29 transports the empty carrying fixture 33 to one end of the empty fixture area 35.

[0074] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A production line intelligent sorting device, characterized in that, The assembly line includes a production area, an assembly line (15), a first roughing area (17), a fineing area (19), a first unloading area (21), a second unloading area (23), a loading area (25), a first transfer machine (27), a second transfer machine (29), and a third transfer machine (31). The production area is used to produce workpieces (100). The assembly line (15) is used to assemble other parts on the finished workpieces (100). The first roughing area (17), the fineing area (19), the first unloading area (21), the second unloading area (23), and the loading area (25) are used to move the workpieces (100) along a first direction. The first transfer machine (27), the second transfer machine (29), and the third transfer machine (31) are used to move the workpieces (100) along a first direction. The third transfer machine (31) is used to move the workpiece (100) along the first direction and a second direction perpendicular to the first direction, so that the first transfer machine (27) can transfer the workpiece between the first transfer machine (27), the production area, the first roughing area (17), the fineing area (19), and the first unloading area (21), the second transfer machine (29) can transfer the workpiece between the second transfer machine (29), the assembly line (15), and the loading area (25), and the third transfer machine (31) can transfer the workpiece between the third transfer machine (31), the first roughing area (17), the fineing area (19), and the first unloading area (21); The intelligent sorting device for the production line also includes a paint touch-up area (13). The production area is a coating line (11). The paint touch-up area (13), the second transfer area (23), and the loading area (25) are arranged side by side. The paint touch-up area (13), the second transfer area (23), and the loading area (25) are located in the area between the first transfer machine (27) and the second transfer machine (29). The first coarse sorting area (17), the fine sorting area (19), and the first transfer area (21) are arranged side by side. The first coarse sorting area (17), the fine sorting area (19), and the first transfer area (21) are located in the area between the first transfer machine (27) and the third transfer machine (31). The first transfer machine (27) is used to transport the finished workpieces (100) of the painting line (11) to the touch-up painting area (13), and to transport the workpieces (100) from the second transfer area (23) to the first transfer area (21), and also to transport the workpieces (100) from the fine sorting area (19) to the loading area (25), and also to transport the workpieces (100) from the first rough sorting area (17) to the first transfer area (21); the second transfer machine (29) is used to transport the workpieces (100) in the touch-up painting area (13) to the first transfer area (21). The workpiece (100) is sent to the second loading area (23) and used to transport the workpiece (100) from the loading area (25) to the assembly line (15); the third transfer machine (31) is used to transport the workpiece (100) from the first loading area (21) to the first rough loading area (17), and also to transport the workpiece (100) from the first loading area (21) to the fine loading area (19). The first transfer machine (27) and the third transfer machine (31) are respectively movably located in the first rough loading area (17), the fine loading area (19), and the third loading area (15). The first and second transfer machines (27 and 29) are movably located at both ends of the second transfer area (23) and the loading area (25), respectively, to be aligned with the first coarse sorting area (17), the fine sorting area (19), and the first transfer area (21). The first coarse sorting area (17) and the second transfer machine (29) are respectively alignable with the second transfer area (23) and the loading area (25). The first coarse sorting area (17) and the fine sorting area (19) are both used to transfer the workpiece (100) from one end near the third transfer machine (31) to the other end near the third transfer machine (31). At one end of the first transfer machine (27), the first transfer area (21) is used to transfer the workpiece (100) from one end near the first transfer machine (27) to one end near the third transfer machine (31), the second transfer area (23) is used to transfer the workpiece (100) from one end near the second transfer machine (29) to one end near the first transfer machine (27), and the loading area (25) is used to transfer the workpiece (100) from one end near the first transfer machine (27) to one end near the second transfer machine (29).

2. The intelligent production line sorting device as described in claim 1, characterized in that, The intelligent sorting device for the production line also includes a control module. The control module is used to perform coarse sorting of the completed workpieces (100) according to the online plan of the assembly line (15) and arrange the workpieces (100) in the first coarse sorting area (17) according to the coarse sorting result. It is also used to perform fine sorting of the workpieces (100) in the first coarse sorting area (17) according to the online plan of the assembly line (15) and arrange the workpieces (100) in the fine sorting area (19) according to the fine sorting result.

3. The intelligent production line sorting device as described in claim 2, characterized in that, During the roughing process, the control module is used to place the newly completed workpiece (100) behind the closest workpiece (100) in the first roughing area (17) according to the online schedule of the assembly line (15); during the fineing process, the control module is used to transfer the workpiece (100) from the first roughing area (17) to the fineing area (19) in an order that completely corresponds to the online schedule of the assembly line (15).

4. The intelligent production line sorting device as described in claim 2, characterized in that, The control module is also used to generate outbound information and send material preparation information for the corresponding materials of the workpiece when the workpiece is ready to be transferred from the first coarse sorting area (17) to the fine sorting area (19).

5. The intelligent production line sorting device as described in claim 4, characterized in that, The intelligent sorting device for the production line also includes a material feeding inlet (43). When a workpiece arrives at the material feeding inlet (43), the control module sends a pulling information for the material corresponding to the workpiece to deliver the material to the assembly line (15).

6. The intelligent production line sorting device as described in claim 2, characterized in that, The intelligent sorting device for the production line also includes a workpiece loading point (45) on the assembly line, which is located at the position where the workpiece is loaded onto the assembly line (15). The control module also stores a maximum workpiece inventory value (A) and a minimum workpiece inventory value (B). The control module is used to determine whether the number of workpieces in inventory is greater than the maximum workpiece inventory value (A) after the workpiece is completed. If so, the excessive inventory information is fed back to the production area, and production control measures are taken for the production area. The control module is also used to determine whether the number of workpieces in inventory is less than the minimum workpiece inventory value (B) when the workpiece is removed from the assembly line at the workpiece loading point (45). If so, the excessive inventory information is fed back to the assembly line (15), and assembly control measures are taken for the assembly line (15).

7. The intelligent production line sorting device as described in claim 1, characterized in that, The intelligent sorting device for the production line also includes a support fixture (33), which is used to support the workpiece (100). The support fixture (33) can be moved along the first direction and placed in the paint touch-up area (13), the first rough sorting area (17), the fine sorting area (19), the first unloading area (21), the second unloading area (23), and the loading area (25). The support fixture (33) can also be moved along the first direction and placed in the first transfer machine (27), the second transfer machine (29), and the third transfer machine (31), and can move along the second direction with the first transfer machine (27), the second transfer machine (29), and the third transfer machine (31).

8. The intelligent production line sorting device as described in claim 7, characterized in that, The intelligent sorting device for the production line also includes an empty tooling area (35) arranged side by side with the loading area (25). The empty tooling area (35) is used to place the empty carrying tooling (33) and to move the empty carrying tooling (33) from one end near the second transfer machine (29) to one end near the first transfer machine (27). The second transfer machine (29) is also used to transport the empty carrying tooling (33) after the workpiece (100) has been unloaded to the empty tooling area (35). The first transfer machine (27) is also used to transfer the empty carrying tooling (33) from the empty tooling area (35) to the first transfer machine (27).

9. The intelligent production line sorting device as described in claim 8, characterized in that, The intelligent sorting device for the production line also includes a mixing zone (39) arranged side by side with the fine sorting zone (19). The mixing zone (39) is used to carry empty carrying fixtures (33) and / or full carrying fixtures (33). The mixing zone (39) is used to transfer empty or full carrying fixtures (33) from one end near the third transfer machine (31) to one end near the first transfer machine (27).

10. The intelligent production line sorting device as described in claim 9, characterized in that, The touch-up painting area (13), the first coarse loading area (17), the fine loading area (19), the first unloading area (21), the second unloading area (23), the loading area (25), the empty tooling area (35), and the mixed loading area (39) are all tunnel-type structures. The tunnel includes a first conveyor roller bed (131), a first chain, and a first drive unit. The first drive unit is used to drive the first chain to move cyclically along the length direction of the first conveyor roller bed (131), thereby driving the first roller of the first conveyor roller bed (131) to rotate. The bearing tooling (33) is a skid. The first conveyor roller bed (131) is used to carry the skid. The skid is used to carry the workpiece (100). The first roller is used to drive the skid to move on the first conveyor roller bed (131). The first transfer machine (27) The second transfer machine (29) and the third transfer machine (31) each include a second conveying roller bed (271), a second chain, a second drive member, a drive wheel and a third drive member. The second drive member is used to drive the second chain to move cyclically along the length direction of the second conveying roller bed (271), thereby driving the second roller of the second conveying roller bed (271) to rotate. The second conveying roller bed (271) is used to carry the skid. The skid is used to carry the workpiece (100). The second roller is used to drive the skid to move along the first direction on the second conveying roller bed (271). The third drive member is used to drive the drive wheel to rotate, so as to drive the first transfer machine (27), the second transfer machine (29) and the third transfer machine (31) to move along the second direction on the track (47).

11. The intelligent production line sorting device as described in claim 1, characterized in that, The intelligent sorting device for the production line also includes a rapid outbound area (37) arranged side by side with the loading area (25). The rapid outbound area (37) is used to transfer the workpiece (100) from one end near the first transfer machine (27) to one end near the second transfer machine (29). The first transfer machine (27) is also used to transfer the workpiece from the first rough sorting area (17) to the first transfer machine (27) and to transfer the workpiece on the first transfer machine (27) to the rapid outbound area (37). The second transfer machine (29) is also used to transfer the workpiece (100) from the rapid outbound area (37) to the assembly line (15).

12. A workpiece sorting method, comprising using the intelligent sorting device for production lines as described in claim 9 to sort the workpieces, the workpiece sorting method comprising: When a workpiece (100) needs to be removed from the coating line (11), the first transfer machine (27) is controlled to transfer the empty carrying fixture (33) from the empty fixture area (35) or the mixed area (39) to the first transfer machine (27) along the first direction. Control the first transfer machine (27) to travel to the off-line connection station (111) of the coating line (11), and take the workpiece (100) off the coating line (11) and place it on the empty carrying fixture (33) on the first transfer machine (27); Control the first transfer machine (27) to travel along the second direction to one end of the paint touch-up area (13), and transfer the workpiece to the paint touch-up area (13) to touch up the workpiece. After the paint touch-up is completed, a work report is generated, and an inbound task is generated based on the work report. According to the warehousing task, the workpieces are stored in the first coarse sorting area (17) or the mixed loading area (39) through the second transfer machine (29), the second transfer area (23), the first transfer machine (27), the first transfer area (21) and the third transfer machine (31), and the inventory information is updated after the workpieces are stored. When a workpiece needs to be moved from the first coarse sorting area (17) or the mixed sorting area (39) to the fine sorting area (19), outbound information is generated. The workpiece is transported to the material feeding inlet (43) using the first transfer machine (27), the first relocation area (21) and the third transfer machine (31). The material preparation information of the corresponding material for the workpiece is sent according to the production plan of the assembly line (15) and the inventory information of the first coarse sorting area (17) and the mixed sorting area (39). When the workpiece arrives at the material feeding inlet (43), the assembly line (15) feeds the corresponding material of the workpiece and transports the corresponding material of the workpiece to the assembly line (15). At the same time, the workpiece is loaded onto the assembly line (15) through the fine sorting area (19), the first transfer machine (27), the loading area (25) and the second transfer machine (29).

13. The workpiece sorting method as described in claim 12, characterized in that, The intelligent sorting device for the production line also includes a third transfer area (41) arranged side by side with the fine sorting area (19). The third transfer area (41) is used to transfer the workpiece (100) from one end near the first transfer machine (27) to the other end near the third transfer machine (31). In the step of controlling the first transfer machine (27) to transfer the empty carrying fixture (33) from the empty tooling area (35) or the mixed loading area (39) along the first direction to the first transfer machine (27), when there is an empty carrying fixture (33) in the empty tooling area (35), the first transfer machine (27) transfers the empty carrying fixture (33) from the empty tooling area (35). When there is no empty carrying fixture (33) in the empty tooling area (35), the first transfer machine (27) transfers the empty carrying fixture (33) from the mixed loading area (39). When there is an empty carrying fixture (33) at the end of the loading area (39) closest to the first transfer machine (27), the empty carrying fixture (33) is directly transferred from the loading area (39). When there is no empty carrying fixture (33) at the end of the loading area (39) closest to the first transfer machine (27), the full carrying fixture (33) located on the side of the loading area (39) with the empty carrying fixture (33) close to the first transfer machine (27) is transported through the third transfer area (41) to the end of the current loading area (39) away from the first transfer machine (27) until the empty carrying fixture (33) is located at the end of the loading area (39) closest to the first transfer machine (27). At this time, the first transfer machine (27) transfers the empty carrying fixture (33) from the loading area (39).

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