Multi-beat island type disassembly and assembly door layout method and device

Abstract

The invention relates to a multi-beat island type door dismounting and mounting layout method and device, and belongs to the technical field of intelligent manufacturing, and the method comprises the steps: obtaining the consumed time of each node on a vehicle door split charging line as basic data, obtaining the time beat of a single door dismounting station according to the basic data, obtaining the time beat of a single door mounting station according to the basic data, according to the preset required takt, station required working hours are obtained, and according to the single door dismounting station time takt, the single door mounting station time takt and the station required working hours, the door dismounting station layout is adjusted; according to the invention, the layout of the assembly and disassembly door station is adjusted by presetting the required rhythm, so that the vehicle door sub-assembly line can adapt to more rhythms and can adapt to more application scenes.

Description

Technical Field

[0001] This invention belongs to the field of intelligent manufacturing technology, specifically relating to a multi-beat island-style disassembly and assembly door layout method and device. Background Technology

[0002] Because car doors can obstruct the assembly of internal components such as cockpit modules and seats, traditional car assembly workshops disassemble the doors and reassemble them on a separate production line before reassembling them back into the vehicle. This dedicated production line is called the door assembly line. Traditional door assembly lines use a linear assembly line layout: multiple workstations are connected by a unidirectional conveyor belt, with the door sequentially undergoing disassembly, inspection, and assembly. This layout suffers from fixed cycle times and poor flexibility. When a workstation malfunctions or requires process adjustments, the entire production line must be shut down for maintenance, resulting in efficiency losses.

[0003] Existing technologies employ a fixed island layout: disassembly and assembly equipment is centrally located on an independent work island, and the doors are transferred manually or by intelligent trolleys. However, since the capacity of the independent work island is fixed, it results in a limited range of production cycle options in flexible scheduling. Summary of the Invention

[0004] To address this issue, the present invention provides a multi-cycle island-style disassembly and assembly door layout method and apparatus, which solves the problem in the prior art where the fixed island layout results in a limited range of selectable production cycles in flexible scheduling due to the fixed production capacity of the independent work islands.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a multi-stage island-style disassembly and assembly door layout method, comprising: The time consumed at each node on the door assembly line is used as the basic data. The time cycle of a single door dismantling station is obtained based on the aforementioned basic data; The time cycle of a single door installation station is obtained based on the aforementioned basic data; The required working hours for each workstation are obtained based on the preset cycle time. The layout of door dismantling and assembly workstations is adjusted based on the time cycle of a single door dismantling workstation, the time cycle of a single door assembly workstation, and the required working hours of the workstations; the layout of door dismantling and assembly workstations includes single door dismantling and single door assembly workstations, single door dismantling and double door assembly workstations, and double door dismantling and double door assembly workstations.

[0006] Furthermore, the intelligent vehicle for the vehicle body and the intelligent vehicle for the vehicle door share a transportation route; the intelligent vehicle for the vehicle body is a dedicated intelligent vehicle for delivering vehicle bodies; the intelligent vehicle for the vehicle door is a dedicated intelligent vehicle for delivering vehicle doors; the process of obtaining the time cycle of a single door removal station based on the basic data includes: Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the first formula, which is: T 拆 = T 11 + T 12 +T 13 +T 14 ; or, Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the second formula, which is: T 拆 = (T 11 + T 12 +T 13 +T 14 )×(1+λ) 拆 )×c 拆 ; Among them, T 拆 For a single door dismantling station, the time cycle is T. 11 The time it takes for the intelligent vehicle to drive from the waiting position to the door removal station; T 12 For the time required to dismantle the door; T 13 The time it takes for the intelligent vehicle to leave the operating station; T 14 For the time it takes to place the smart car from the door to the car door; λ 拆 To calculate the real-time equipment failure rate at the door dismantling station, c 拆 The difficulty level of the door disassembly process.

[0007] Furthermore, obtaining the time cycle of a single door installation station based on the aforementioned basic data includes: Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through a third formula, which is: T 装 = T 21 + T 22 +T 23 +T 24 ; or, Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through the fourth formula, which is: T 装 = (T) 21 + T 22 +T 23 +T 24 )×(1+λ) 装 )×c 装 ; Among them, T 装T represents the cycle time for a single door installation station. 21 The time it takes for the intelligent vehicle to drive from the waiting position to the door assembly position; T 22 For door installation operation time; T 23 The time it takes for the intelligent vehicle to drive out of the door assembly station; T 24 The time for the intelligent vehicle to wait to leave the door installation station; λ 装 To calculate the real-time equipment failure rate at the door installation station, c 装 The difficulty level of the assembly process.

[0008] Furthermore, the intelligent vehicle for the vehicle body and the intelligent vehicle for the doors share the same transportation route. The adjustment of the door disassembly and assembly station layout based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours for each station includes: If T 拆 <T 需求 And T 装 <T 需求 And T 等待 <T 需求 Then, a single-door disassembly and single-door installation workstation layout will be used; If T 拆 <T 需求 And T 需求 <T 装 <2×T 需求 And T 等待 <T 需求 Then, a single-door disassembly and double-door installation workstation layout will be used; If T 需求 <T 拆 <2×T 需求 And T 需求 <T 装 <2×T 需求 And T 等待 <T 需求 Then, a double-door dismantling and double-door installation workstation layout will be used; Among them, T 拆 For the time cycle of a single door dismantling station, T 装 For the time cycle of a single door installation station, T 需求 For the required working hours at the workstation, T 等待 The travel and waiting time of the intelligent door car from the door installation station to the door removal station.

[0009] Furthermore, the method also includes: If T 等待 <T 需求 Set up a smart car waiting area at the car door; If T 需求 <T 等待 <2×T 需求 Then, two intelligent car waiting positions with two doors are set up; The number of waiting positions for the intelligent door trolley is the number of intelligent door trolleys waiting between the door disassembly station and the door assembly station.

[0010] Furthermore, the step of obtaining the required working hours for the workstation based on the preset required cycle time includes: Based on the preset required cycle time, the required working hours for each workstation are obtained through the ninth formula, which is: T 需求 = T 预设 × η; Among them, T 需求 For the required working hours at the workstation, T 预设 The preset required cycle time is η, which is the workstation time utilization rate, and η is set based on experience.

[0011] Furthermore, the intelligent vehicle for the vehicle body and the intelligent vehicle for the vehicle door do not share a transportation route; the intelligent vehicle for the vehicle body is a dedicated intelligent vehicle for delivering the vehicle body; the intelligent vehicle for the vehicle door is a dedicated intelligent vehicle for delivering the vehicle door; the process of obtaining the time cycle of a single door removal station based on the basic data includes: Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the fifth formula, which is: T` 拆 = T` 11 + T` 12 +T` 13 ; or, Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the sixth formula, which is: T` 拆 =(T` 11 + T` 12 +T` 13 )×(1+λ) 拆 )×c 拆 ; Among them, T` 拆 For a single door dismantling station, the time cycle is T`. 11 The time it takes for the intelligent vehicle to drive from the waiting position to the door removal station; T` 12 For the time required to dismantle the door; T` 13 The time it takes for the intelligent vehicle to leave the operating station; λ 拆 To calculate the real-time equipment failure rate at the door dismantling station, c 拆 The difficulty level of the door disassembly process.

[0012] Furthermore, the intelligent vehicle for the vehicle body and the intelligent vehicle for the vehicle door do not share the same transportation route; the process of obtaining the time cycle of a single door installation station based on the aforementioned basic data includes: Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through the seventh formula, which is: T` 装 = T` 21 + T` 22 +T` 23 ; or, Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through the eighth formula, which is: T` 装 =(T` 21 + T` 22 +T` 23 )×(1+λ) 装 )×c 装 ; Where T` 装 The time cycle for a single door installation station; T` 21 The time it takes for the intelligent vehicle to drive from the waiting position to the door assembly position; T` 22 For door installation operation time; T` 23 The time it takes for the intelligent vehicle to drive out of the door assembly station; λ 装 To calculate the real-time equipment failure rate at the door installation station, c 装 The difficulty level of the assembly process.

[0013] Furthermore, the intelligent vehicle for the vehicle body and the intelligent vehicle for the doors do not share the same transportation route; the adjustment of the layout of the door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours of the stations includes: If T` 拆 <T 需求 , and T` 装 <T 需求 Then, a single-door disassembly and single-door installation workstation layout will be used; If T` 拆 <T 需求 And T 需求 <T` 装 <2×T 需求 Then, a single-door disassembly and double-door installation workstation layout will be used; If T 需求 <T` 拆 <2×T 需求 And T 需求 <T` 装 <2×T 需求 Then, a double-door dismantling and double-door installation workstation layout will be used; Among them, T` 拆 For the time cycle of a single door dismantling station, T` 装 For the time cycle of a single door installation station, T需求 Work hours required for each workstation.

[0014] Secondly, the present invention provides a multi-stage island-type disassembly and assembly door layout device, comprising: The acquisition module is used to acquire the time consumption of each node on the door assembly line as basic data. The workstation cycle time module is used to obtain the time cycle time of a single door disassembly workstation based on the basic data; to obtain the time cycle time of a single door assembly workstation based on the basic data; and to obtain the required working hours of the workstation based on the preset required cycle time. The workstation layout module is used to adjust the layout of the door disassembly and assembly workstations based on the time cycle of a single door disassembly workstation, the time cycle of a single door assembly workstation, and the required working hours of the workstations; the door disassembly and assembly workstation layouts include single door disassembly and single door assembly workstation layouts, single door disassembly and double door assembly workstation layouts, and double door disassembly and double door assembly workstation layouts.

[0015] The present invention, by adopting the above technical solution, has at least the following beneficial effects: A multi-cycle island-style door assembly / disassembly layout method and apparatus is provided. The method acquires the time consumption of each node on the door assembly line as basic data, obtains the time cycle of a single door disassembly station based on the basic data, obtains the time cycle of a single door assembly station based on the basic data, obtains the required working hours for each station based on preset required cycle times, and adjusts the door assembly / disassembly station layout based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours for each station. In this invention, adjusting the door assembly / disassembly station layout by preset required cycle times allows the door assembly line to adapt to more cycle times and can be adapted to more application scenarios.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating a multi-beat island-style disassembly and assembly door layout method according to an exemplary embodiment of the present invention; Figure 2 This is a schematic diagram of the arrangement of single-door disassembly and single-door assembly workstations according to an exemplary embodiment of the present invention; Figure 3 This is a schematic diagram of the arrangement of a single-door disassembly and double-door assembly station according to an exemplary embodiment of the present invention; Figure 4This is a schematic diagram of the structure of a double-door disassembly and double-door assembly workstation arrangement shown in an exemplary embodiment of the present invention; Figure 5 This is a schematic diagram of the arrangement of single-door disassembly and single-door assembly workstations, as shown in another exemplary embodiment of the present invention. Figure 6 This is a schematic block diagram illustrating a multi-beat island-type disassembly and assembly door layout device according to an exemplary embodiment of the present invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] This invention provides a multi-cycle island-style disassembly and assembly door layout method and device. In this invention, the disassembly and assembly door station layout is adjusted by preset required cycle times, so that the door assembly line can adapt to more cycle times and can adapt to more application scenarios. The intelligent vehicle can be an IGV or an AGV; that is, an Intelligent Guided Vehicle (IGV) or an Automated Guided Vehicle (AGV).

[0022] The methods and apparatus of the present invention will be described below through specific embodiments.

[0023] Please see Figure 1 , Figure 1 This is a flowchart illustrating a multi-beat island-style disassembly and assembly door layout method according to an exemplary embodiment of the present invention. See also... Figure 1 The method includes: Step S11: Obtain the time consumed at each node on the door assembly line as basic data; Step S12: Obtain the time cycle of a single door dismantling station based on the basic data; Step S13: Obtain the time cycle of a single door installation station based on the basic data; Step S14: Obtain the required working hours for each workstation based on the preset required cycle time; Step S15: Adjust the layout of door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours for each station.

[0024] It should be noted that the technical solution provided in this embodiment is applicable to scenarios including but not limited to: the layout of the disassembly and assembly station of the car door assembly line.

[0025] It is understood that the method provided in this embodiment obtains the time consumption of each node on the door assembly line as basic data, obtains the time cycle of a single door disassembly station based on the basic data, obtains the time cycle of a single door assembly station based on the basic data, obtains the required working hours of the station based on the preset required cycle, and adjusts the layout of the door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours of the station. In this invention, the layout of the door disassembly and assembly stations is adjusted by setting the preset required cycle, so that the door assembly line can adapt to more cycles and can adapt to more application scenarios.

[0026] In practice, step S11, "obtaining the time consumed at each node on the door assembly line as basic data", includes: the time consumed at each node on the door assembly line is the time consumed when the intelligent vehicle is operating normally without congestion.

[0027] It should be noted that the time consumed by each node can be obtained by combining historical data analysis or by multiple simulation experiments. For example, firstly, the time consumed by each node is captured from historical data, and then the time consumed by each node is cleaned to remove outliers (such as invalid data where the node did not end normally, or excessively long / short time consumed due to faults / misoperations), deduplication (data that is recorded repeatedly), and filling in missing data (such as filling in the missing start / end time by associating with the business ID). Finally, the average time consumed by each node is taken as the node time consumed by the corresponding node.

[0028] Please see Figure 2 , Figure 3 , Figure 4 , Figure 2 This is a schematic diagram of the arrangement of single-door disassembly and single-door assembly workstations according to an exemplary embodiment of the present invention; Figure 3 This is a schematic diagram of the arrangement of a single-door disassembly and double-door assembly station according to an exemplary embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the structure of a double-door, double-door installation workstation arrangement according to an exemplary embodiment of the present invention; see also Figure 2 , Figure 3 , Figure 4 The intelligent vehicle for the car body and the intelligent vehicle for the doors share the same transportation route. In practice, step S12, "obtaining the time cycle of a single door removal station based on the basic data," includes: obtaining the time cycle of a single door removal station based on the time consumed by the nodes involved in door removal in the basic data using the first formula, which is: T 拆 = T 11 + T 12 +T 13 +T 14Alternatively, based on the time consumed by each node involved in door dismantling in the basic data, the time cycle of a single door dismantling station can be obtained using the second formula, which is: T 拆 = (T 11 + T 12 +T 13 +T 14 )×(1+λ) 拆 )×c 拆 Among them, T 拆 For a single door dismantling station, the time cycle is T. 11 The time it takes for the intelligent vehicle to drive from the waiting position to the door removal station; T 12 For the time required to dismantle the door; T 13 The time it takes for the intelligent vehicle to leave the operating station; T 14 For the time it takes to place the smart car from the door to the car door; λ 拆 To calculate the real-time equipment failure rate at the door dismantling station, c 拆 The difficulty level of the door disassembly process.

[0029] It should be noted that when the number of related devices at the door dismantling station is less than the preset number, and the same door is dismantled at the door dismantling station for a preset period of time, the time cycle of a single door dismantling station is obtained using the first formula; otherwise, the time cycle of a single door dismantling station is obtained using the second formula; the preset period and preset number are set according to specific business needs.

[0030] It should be noted that the real-time equipment failure rate has a significant impact on the cycle time of a single door dismantling station. To obtain the cycle time of a single door dismantling station more accurately, a real-time equipment failure rate is introduced. The status information of all relevant equipment at the door dismantling station is collected in real time, and the real-time equipment failure rate is calculated based on this status information. The calculation formula is: λ 拆 =S 异常 / S 总 ×100%; S 异常 S represents the number of devices at the door removal station whose status information is abnormal. 总 This refers to the total number of all relevant equipment at the door dismantling station; the classification of relevant equipment at the door dismantling station is determined manually.

[0031] It should be noted that, due to the significant differences in the difficulty and time required for disassembling and assembling each type of door, a door disassembly process difficulty coefficient is introduced to obtain the time cycle of a single door disassembly station more accurately. The door disassembly process difficulty coefficient is set in the range of 1-3, and each type of door has a preset door disassembly process difficulty coefficient. When calculating the time cycle of a single door disassembly station, the corresponding door disassembly process difficulty coefficient is obtained.

[0032] It should be noted that, see Figure 2 , Figure 3 and Figure 4A represents the transportation route for the intelligent vehicle body, B represents the transportation route for the intelligent vehicle door, and C represents the waiting space for the intelligent vehicle door.

[0033] It should be noted that the intelligent vehicle body cart and the intelligent vehicle door cart share the same transportation route. The intelligent vehicle body cart is a dedicated intelligent vehicle for delivering vehicle bodies; the intelligent vehicle door cart is a dedicated intelligent vehicle for delivering vehicle doors. The nodes involved in the door removal station are: the time for the intelligent vehicle body cart to drive from the waiting position to the door removal station; the door removal operation time; the time for the intelligent vehicle body cart to drive out of the operation station; the time for the intelligent vehicle door cart to drive from the waiting position to the station; and the time for placing the door onto the intelligent vehicle door cart. The intelligent vehicle body cart and the intelligent vehicle door cart move synchronously during the process of entering the station. Therefore, the time for the intelligent vehicle door cart to drive from the waiting position to the station is ignored when calculating the time cycle of a single door removal station.

[0034] See Figure 2 , Figure 3 , Figure 4 The intelligent vehicle for the car body and the intelligent vehicle for the doors share the same transportation route. In practice, step S13, "obtaining the time cycle of a single door installation station based on the basic data," includes: obtaining the time cycle of a single door installation station based on the time consumption of the nodes involved in door installation in the basic data using the third formula, which is: T 装 = T 21 + T 22 +T 23 +T 24 Alternatively, based on the time consumption of each node involved in door installation in the basic data, the time cycle of a single door installation station can be obtained through the fourth formula, which is: T 装 = (T) 21 + T 22 +T 23 +T 24 )×(1+λ) 装 )×c 装 Among them, T 装 T represents the cycle time for a single door installation station. 21 The time it takes for the intelligent vehicle to drive from the waiting position to the door assembly position; T 22 For door installation operation time; T 23 The time it takes for the intelligent vehicle to drive out of the door assembly station; T 24 The time for the intelligent vehicle to wait to leave the door installation station; λ 装 To calculate the real-time equipment failure rate at the door installation station, c 装 The difficulty level of the assembly process.

[0035] It should be noted that when the number of related devices at the door installation station is less than the preset number, and the same door will be installed at the door installation station for a preset period of time, the time cycle of a single door installation station will be obtained using the third formula; otherwise, the time cycle of a single door installation station will be obtained using the fourth formula; the preset period and preset number are set according to specific business needs.

[0036] It should be noted that the real-time equipment failure rate has a significant impact on the cycle time of a single door assembly station. To obtain the cycle time of a single door assembly station more accurately, a real-time equipment failure rate is introduced. The status information of all relevant equipment at the door assembly station is collected in real time, and the real-time equipment failure rate is calculated based on this status information. The calculation formula is: λ 装 =S 异常 / S 总 ×100%; S 异常 S represents the number of devices at the door installation station whose status information is abnormal. 总 This refers to the total number of all relevant equipment at the door installation station; which equipment at the door installation station is considered relevant is determined manually.

[0037] It should be noted that, due to the significant differences in the difficulty and time required for assembling each type of door, an assembly process difficulty coefficient is introduced to more accurately determine the time cycle of a single door assembly station. The assembly process difficulty coefficient is set in the range of 1-5, and each type of door has a preset assembly process difficulty coefficient. When calculating the time cycle of a single door assembly station, the corresponding assembly process difficulty coefficient is obtained.

[0038] It should be noted that the nodes involved in the door installation station include: the time for the intelligent vehicle to enter the station from the waiting position; the door installation operation time; the time for the intelligent vehicle to leave the operation station; the time for the intelligent vehicle to enter the station from the waiting position; the time for the intelligent vehicle to wait to leave the door installation station; the intelligent vehicle and the intelligent vehicle move synchronously during the process of entering the station, so the time for the intelligent vehicle to enter the station from the waiting position is ignored when calculating the time cycle of a single door installation station.

[0039] In practice, step S14, "obtaining the required working hours for the workstation based on the preset required cycle time," includes: obtaining the required working hours for the workstation using the ninth formula based on the preset required cycle time. The ninth formula is: T 需求 = T 预设 × η; where, T 需求 For the required working hours at the workstation, T 预设 The preset required cycle time is η, which is the workstation time utilization rate, and η is set based on experience.

[0040] It should be noted that the workstation hour utilization rate is set based on experience. For example, referring to historical performance, the actual utilization rate of the workstation over the past 3-6 months can be statistically analyzed and the average value can be calculated. The workstation hour utilization rate is the average value + 5%, which is both realistic and allows for improvement. Alternatively, the utilization rate can be selected from the typical range of η, 0.85–0.95, as the workstation hour utilization rate.

[0041] It should be noted that the preset required takt time is set based on specific business needs. The preset takt time setting must be anchored to business needs and mainly based on accurate calculation of production capacity factors. For example, confirm the target annual output / daily output (such as an annual production capacity of 200,000 vehicles and 250 working days per year, then the daily production capacity is 800 vehicles), and use the daily production capacity of 800 vehicles as the preset required takt time.

[0042] See Figure 2 , Figure 3 , Figure 4 The intelligent vehicle for the car body and the intelligent vehicle for the doors share the same transportation route. In practice, step S15, "adjusting the layout of the door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours of the station," includes: If T 拆 <T 需求 And T 装 <T 需求 And T 等待 <T 需求 Then use a single-door removal and single-door installation workstation layout; if T 拆 <T 需求 And T 需求 <T 装 <2×T 需求 And T 等待 <T 需求 Then use a single-door, double-door workstation layout; if T 需求 <T 拆 <2×T 需求 And T 需求 <T 装 <2×T 需求 And T 等待 <T 需求 Then, a double-door disassembly and double-door installation workstation layout will be used; among which, T 拆 For the time cycle of a single door dismantling station, T 装 For the time cycle of a single door installation station, T 需求 For the required working hours at the workstation, T 等待 The travel and waiting time of the intelligent door car from the door installation station to the door removal station.

[0043] It is understood that the technical solution provided in this embodiment adjusts the layout of the door assembly and disassembly station by setting preset cycle times, so that the door assembly line can adapt to more cycle times and more application scenarios.

[0044] See Figure 2 , Figure 3 , Figure 4 The intelligent vehicle on the vehicle body and the intelligent vehicle at the vehicle door share the same transportation route. In practice, the method also includes: if T 等待 <T 需求 Set up a smart car waiting area at the car door; if T 需求 <T 等待 <2×T 需求 Then, two intelligent door car waiting positions are set; the number of intelligent door car waiting positions is the number of intelligent door cars waiting between the door disassembly station and the door assembly station.

[0045] It should be noted that in order to control the number of empty door intelligent cars and improve production efficiency, it is not recommended to set too many waiting positions; a maximum of two is recommended.

[0046] Please see Figure 5 , Figure 5 This is a schematic diagram illustrating the arrangement of single-door disassembly and single-door assembly workstations according to another exemplary embodiment of the present invention; see also Figure 5 The intelligent vehicle for the vehicle body and the intelligent vehicle for the doors do not share the same transportation route. In practice, step S12, "obtaining the time cycle of a single door removal station based on the basic data," includes: obtaining the time cycle of a single door removal station based on the time consumption of the nodes involved in door removal in the basic data using the fifth formula, which is: T` 拆 = T` 11 + T` 12 +T` 13 Alternatively, based on the time consumed by each node involved in door dismantling in the basic data, the time cycle of a single door dismantling station can be obtained through the sixth formula, which is: T` 拆 =(T` 11 + T` 12 +T` 13 )×(1+λ) 拆 )×c 拆 Among them, T` 拆 For a single door dismantling station, the time cycle is T`. 11 The time it takes for the intelligent vehicle to drive from the waiting position to the door removal station; T` 12 For the time required to dismantle the door; T` 13 The time it takes for the intelligent vehicle to leave the operating station; λ 拆 To calculate the real-time equipment failure rate at the door dismantling station, c 拆 The difficulty level of the door disassembly process.

[0047] It should be noted that when the intelligent vehicle body and the intelligent vehicle door do not share the same transportation route, if the number of related devices at the door removal station is lower than the preset number, and the same door is removed at the door removal station within a preset time period, then the time cycle of a single door removal station is obtained using the fifth formula; otherwise, the time cycle of a single door removal station is obtained using the sixth formula; the preset time period and preset number are set according to specific business needs.

[0048] It should be noted that the real-time equipment failure rate has a significant impact on the time cycle of a single door dismantling station. To obtain the time cycle of a single door dismantling station more accurately, a real-time equipment failure rate is introduced. The status information of all relevant equipment at the door dismantling station is collected in real time, and the real-time equipment failure rate is calculated based on the status information. The calculation formula is: λdismantling = S_abnormal / S_total × 100%; S_abnormal is the number of equipment at the door dismantling station with abnormal status information; S_total is the total number of all relevant equipment at the door dismantling station; which equipment at the door dismantling station is considered relevant is manually set.

[0049] It should be noted that, due to the significant differences in the difficulty and time required for disassembling and assembling each type of door, a door disassembly process difficulty coefficient is introduced to obtain the time cycle of a single door disassembly station more accurately. The door disassembly process difficulty coefficient is set in the range of 1-3, and each type of door has a preset door disassembly process difficulty coefficient. When calculating the time cycle of a single door disassembly station, the corresponding door disassembly process difficulty coefficient is obtained.

[0050] It should be noted that the intelligent vehicle body cart and the intelligent vehicle door cart do not share the same transportation route. The intelligent vehicle body cart enters the station continuously, while the intelligent vehicle door cart provides the doors on the outside of the island. The intelligent vehicle body cart is a dedicated intelligent vehicle for delivering the vehicle body; the intelligent vehicle door cart is a dedicated intelligent vehicle for delivering the vehicle door. The nodes involved in the door removal station are: the time for the intelligent vehicle body cart to enter the door removal station from the waiting position; the door removal operation time; the time for the intelligent vehicle body cart to leave the operation station; the time for the intelligent vehicle door cart to enter the station from the waiting position; and the time for placing the door onto the intelligent vehicle door cart. The intelligent vehicle body cart and the intelligent vehicle door cart move synchronously during the entry into the station, so the time for the intelligent vehicle door cart to enter the station from the waiting position is ignored when calculating the time cycle of a single door removal station. The intelligent vehicle door cart is transported separately, and the time for placing the door onto the intelligent vehicle door cart is synchronized with the time for the intelligent vehicle body cart to enter the door removal station from the waiting position, so the time for placing the door onto the intelligent vehicle door cart is also ignored.

[0051] See Figure 5 The intelligent vehicle for the car body and the intelligent vehicle for the doors do not share the same transportation route. In practice, step S13, "obtaining the time cycle of a single door installation station based on the basic data," includes: obtaining the time cycle of a single door installation station based on the time consumption of the nodes involved in door installation in the basic data using the seventh formula, which is: T` 装 = T` 21+ T` 22 +T` 23 Alternatively, based on the time consumption of the nodes involved in door installation in the basic data, the time cycle of a single door installation station can be obtained through the eighth formula, which is: T` 装 =(T` 21 + T` 22 +T` 23 )×(1+λ) 装 )×c 装 Among them, T` 装 The time cycle for a single door installation station; T` 21 The time it takes for the intelligent vehicle to drive from the waiting position to the door assembly position; T` 22 For door installation operation time; T` 23 The time it takes for the intelligent vehicle to drive out of the door assembly station; λ 装 To calculate the real-time equipment failure rate at the door installation station, c 装 The difficulty level of the assembly process.

[0052] It should be noted that the intelligent vehicle body and the intelligent vehicle door do not share the same transportation route. When the number of related devices at the door installation station is less than the preset number, and the same door body is installed at the door installation station for a preset period of time, the time cycle of a single door installation station is obtained using the seventh formula; otherwise, the time cycle of a single door installation station is obtained using the eighth formula. The preset period and preset number are set according to specific business needs.

[0053] It should be noted that the real-time equipment failure rate has a significant impact on the cycle time of a single door assembly station. To obtain the cycle time of a single door assembly station more accurately, a real-time equipment failure rate is introduced. The status information of all relevant equipment at the door assembly station is collected in real time, and the real-time equipment failure rate is calculated based on this status information. The calculation formula is: λ 装 =S 异常 / S 总 ×100%; S 异常 S represents the number of devices at the door installation station whose status information is abnormal. 总 This refers to the total number of all relevant equipment at the door installation station; which equipment at the door installation station is considered relevant is determined manually.

[0054] It should be noted that, due to the significant differences in the difficulty and time required for assembling each type of door, an assembly process difficulty coefficient is introduced to more accurately determine the time cycle of a single door assembly station. The assembly process difficulty coefficient is set in the range of 1-5, and each type of door has a preset assembly process difficulty coefficient. When calculating the time cycle of a single door assembly station, the corresponding assembly process difficulty coefficient is obtained.

[0055] It should be noted that the nodes involved in the door installation station include: the time for the intelligent vehicle body cart to enter the station from the waiting position; the door installation operation time; the time for the intelligent vehicle body cart to leave the operation station; the time for the intelligent vehicle door cart to enter the station from the waiting position; the time for the intelligent vehicle door cart to wait to leave the door installation station; the intelligent vehicle body cart and the intelligent vehicle door cart move synchronously during the entry process, therefore the time for the intelligent vehicle door cart to enter the station from the waiting position is ignored when calculating the time cycle of a single door installation station; the intelligent vehicle body cart and the intelligent vehicle door cart move synchronously during the entry process, therefore the time for the intelligent vehicle door cart to enter the station from the waiting position is ignored when calculating the time cycle of a single door removal station; the intelligent vehicle door cart is transported separately, and the time for the intelligent vehicle door cart to wait to leave the door installation station is synchronized with the time for the intelligent vehicle body cart to enter the door removal station from the waiting position, therefore the time for the intelligent vehicle door cart to wait to leave the door installation station is also ignored.

[0056] See Figure 5 The intelligent vehicle for the car body and the intelligent vehicle for the doors do not share the same transportation route. In practice, step S15, "adjusting the layout of the door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours of the station," includes: If T` 拆 <T 需求 , and T` 装 <T 需求 Then use a single-door disassembly and single-door installation workstation layout; if T` 拆 <T 需求 And T 需求 <T` 装 <2×T 需求 Then use a single-door, double-door workstation layout; if T 需求 <T` 拆 <2×T 需求 And T 需求 <T` 装 <2×T 需求 Then, a double-door disassembly and double-door installation workstation layout will be used; among which, T` 拆 For the time cycle of a single door dismantling station, T` 装 For the time cycle of a single door installation station, T 需求 Work hours required for each workstation.

[0057] Understandably, the technical solution provided in this implementation adjusts the layout of the door assembly and disassembly stations by pre-setting the required cycle time, enabling the door assembly line to adapt to more cycle times and more application scenarios.

[0058] Please see Figure 6 , Figure 6 This is a schematic block diagram illustrating a multi-beat island-type disassembly and assembly door layout device according to an exemplary embodiment of the present invention. See also: Figure 6 The multi-beat island-style disassembly and assembly door layout device 100 includes: The acquisition module 101 is used to acquire the time consumption of each node on the door assembly line as basic data. The workstation cycle time module 102 is used to obtain the time cycle time of a single door disassembly workstation based on the basic data; to obtain the time cycle time of a single door assembly workstation based on the basic data; and to obtain the required working hours of the workstation based on the preset required cycle time. The workstation layout module 103 is used to adjust the layout of the door disassembly and assembly workstations based on the time cycle of a single door disassembly workstation, the time cycle of a single door assembly workstation, and the required working hours of the workstations. The door disassembly and assembly workstation layouts include single door disassembly and single door assembly workstation layouts, single door disassembly and double door assembly workstation layouts, and double door disassembly and double door assembly workstation layouts.

[0059] It should be noted that the device provided in this embodiment is applicable to scenarios including but not limited to: door assembly and disassembly station layout of a car door sub-assembly line.

[0060] Specifically, the acquisition module 101 includes a sensor array and a data acquisition card, the workstation cycle module 102 is embedded in the PLC controller, and the workstation layout module 103 outputs the layout scheme through simulation software.

[0061] It is understood that the device provided in this embodiment obtains the time consumption of each node on the door assembly line as basic data, obtains the time cycle of a single door disassembly station based on the basic data, obtains the time cycle of a single door assembly station based on the basic data, obtains the required working hours of the station based on the preset required cycle, and adjusts the layout of the door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours of the station. In this invention, the layout of the door disassembly and assembly stations is adjusted by setting the preset required cycle, so that the door assembly line can adapt to more cycles and can adapt to more application scenarios.

[0062] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided by this invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] It should also be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for display, data used for analysis, etc.) involved in this invention are all information and data authorized by the user or fully authorized by all parties.

[0065] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for arranging multi-beat island-style disassembly and assembly doors, characterized in that, The method includes: The time consumed at each node on the door assembly line is used as the basic data. The time cycle of a single door dismantling station is obtained based on the aforementioned basic data; The time cycle of a single door installation station is obtained based on the aforementioned basic data; The required working hours for each workstation are obtained based on the preset cycle time. The layout of door dismantling and assembly workstations is adjusted based on the time cycle of a single door dismantling workstation, the time cycle of a single door assembly workstation, and the required working hours for each workstation. The layout of door dismantling and assembly workstations includes single door dismantling and single door assembly workstations, single door dismantling and double door assembly workstations, and double door dismantling and double door assembly workstations.

2. The method according to claim 1, characterized in that, The intelligent vehicle body cart and the intelligent vehicle door cart share a transportation route. The intelligent vehicle body cart is a dedicated intelligent vehicle for delivering vehicle bodies; the intelligent vehicle door cart is a dedicated intelligent vehicle for delivering vehicle doors. The process of obtaining the time cycle for a single door removal station based on the aforementioned basic data includes: Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the first formula, which is: T 拆 = T 11 + T 12 +T 13 +T 14 ; or, Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the second formula, which is: T 拆 =(T 11 + T 12 +T 13 +T 14 )×(1+λ 拆 )×c 拆 ; Among them, T 拆 For a single door dismantling station, the time cycle is T. 11 The time it takes for the intelligent vehicle to drive from the waiting position to the door removal station; T 12 For the time required to dismantle the door; T 13 The time it takes for the intelligent vehicle to leave the operating station; T 14 For the time it takes to place the smart car from the door to the car door; λ 拆 To calculate the real-time equipment failure rate at the door dismantling station, c 拆 The difficulty level of the door disassembly process.

3. The method according to claim 2, characterized in that, The process of obtaining the time cycle of a single door installation station based on the aforementioned basic data includes: Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through a third formula, which is: T 装 = T 21 + T 22 +T 23 +T 24 ; or, Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through the fourth formula, which is: T 装 = (T 21 + T 22 +T 23 +T 24 )×(1+λ 装 )×c 装 ; Among them, T 装 T represents the cycle time for a single door installation station. 21 The time it takes for the intelligent vehicle to drive from the waiting position to the door assembly position; T 22 For door installation operation time; T 23 The time it takes for the intelligent vehicle to drive out of the door assembly station; T 24 The time for the intelligent vehicle to wait to leave the door installation station; λ 装 To calculate the real-time equipment failure rate at the door installation station, c 装 The difficulty level of the assembly process.

4. The method according to claim 3, characterized in that, The intelligent vehicle for the car body and the intelligent vehicle for the doors share a transportation route. The adjustment of the door disassembly and assembly station layout based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours for each station includes: If T 拆 <T 需求 And T 装 <T 需求 And T 等待 <T 需求 Then, a single-door disassembly and single-door installation workstation layout will be used; If T 拆 <T 需求 And T 需求 <T 装 <2×T 需求 And T 等待 <T 需求 Then, a single-door, double-door workstation layout will be used; If T 需求 <T 拆 <2×T 需求 And T 需求 <T 装 <2×T 需求 And T 等待 <T 需求 Then, a double-door dismantling and double-door installation workstation layout will be used; Among them, T 拆 For the time cycle of a single door dismantling station, T 装 For the time cycle of a single door installation station, T 需求 For the required working hours at the workstation, T 等待 The travel and waiting time of the intelligent door car from the door installation station to the door removal station.

5. The method according to claim 3, characterized in that, The method further includes: If T 等待 <T 需求 Set up a smart car waiting area at the car door; If T 需求 <T 等待 <2×T 需求 Then, two intelligent car waiting positions with two doors are set up; The number of waiting positions for the intelligent door trolley is the number of intelligent door trolleys waiting between the door disassembly station and the door assembly station, where T 需求 For the required working hours at the workstation, T 等待 The travel and waiting time of the intelligent door car from the door installation station to the door removal station.

6. The method according to claim 1, characterized in that, The process of obtaining the required working hours for a workstation based on a preset cycle time includes: Based on the preset required cycle time, the required working hours for each workstation are obtained through the ninth formula, which is: T 需求 = T 预设 × the; Among them, T 需求 For the required working hours at the workstation, T 预设 The preset required cycle time is η, which is the workstation time utilization rate, and η is set based on experience.

7. The method according to claim 4, characterized in that, The intelligent vehicle body cart and the intelligent vehicle door cart do not share a transportation route; the intelligent vehicle body cart is a dedicated intelligent vehicle for delivering vehicle bodies; the intelligent vehicle door cart is a dedicated intelligent vehicle for delivering vehicle doors; the process of obtaining the time cycle of a single door removal station based on the aforementioned basic data includes: Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the fifth formula, which is: T` 拆 = T` 11 + T` 12 +T` 13 ; or, Based on the time consumption of each node involved in door dismantling in the aforementioned basic data, the time cycle of a single door dismantling station is obtained through the sixth formula, which is: T` 拆 =(T` 11 + T` 12 +T` 13 )×(1+λ 拆 )×c 拆 ; Where T` 拆 For a single door dismantling station, the time cycle is T`. 11 The time it takes for the intelligent vehicle to drive from the waiting position to the door removal station; T` 12 For the time required to dismantle the door; T` 13 The time it takes for the intelligent vehicle to leave the operating station; λ 拆 To calculate the real-time equipment failure rate at the door dismantling station, c 拆 The difficulty level of the door disassembly process.

8. The method according to claim 7, characterized in that, The intelligent vehicle for the car body and the intelligent vehicle for the car door do not share the same transportation route; the time cycle of obtaining a single door installation station based on the aforementioned basic data includes: Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through the seventh formula, which is: T` 装 = T` 21 + T` 22 +T` 23 ; or, Based on the time consumption of each node involved in door installation in the aforementioned basic data, the time cycle of a single door installation station is obtained through the eighth formula, which is: T` 装 =(T` 21 + T` 22 +T` 23 )×(1+λ 装 )×c 装 ; Among them, T` 装 The time cycle for a single door installation station; T` 21 The time it takes for the intelligent vehicle to drive from the waiting position to the door assembly position; T` 22 For door installation operation time; T` 23 The time it takes for the intelligent vehicle to drive out of the door assembly station; λ 装 To calculate the real-time equipment failure rate at the door installation station, c 装 The difficulty level of the assembly process.

9. The method according to claim 8, characterized in that, The intelligent vehicle for the car body and the intelligent vehicle for the doors do not share a transportation route; the adjustment of the layout of the door disassembly and assembly stations based on the time cycle of a single door disassembly station, the time cycle of a single door assembly station, and the required working hours of the stations includes: If T` 拆 <T 需求 , and T` 装 <T 需求 Then, a single-door disassembly and single-door installation workstation layout will be used; If T` 拆 <T 需求 And T 需求 <T` 装 <2×T 需求 Then, a single-door, double-door workstation layout will be used; If T 需求 <T` 拆 <2×T 需求 And T 需求 <T` 装 <2×T 需求 Then, a double-door dismantling and double-door installation workstation layout will be used; Among them, T` 拆 For the time cycle of a single door dismantling station, T` 装 For the time cycle of a single door installation station, T 需求 Work hours required for each workstation.

10. A multi-beat island-type disassembly and assembly door layout device, characterized in that, The device includes: The acquisition module is used to acquire the time consumption of each node on the door assembly line as basic data. The workstation cycle time module is used to obtain the time cycle time of a single door disassembly workstation based on the basic data; to obtain the time cycle time of a single door assembly workstation based on the basic data; and to obtain the required working hours of the workstation based on the preset required cycle time. The workstation layout module is used to adjust the layout of the door disassembly and assembly workstations based on the time cycle of a single door disassembly workstation, the time cycle of a single door assembly workstation, and the required working hours of the workstations; the door disassembly and assembly workstation layouts include single door disassembly and single door assembly workstation layouts, single door disassembly and double door assembly workstation layouts, and double door disassembly and double door assembly workstation layouts.

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