Supply chain estimation and control system and method for transmission equipment production

Abstract

A supply chain estimation and control system and method for transmission equipment production are applied to the dynamic control of production with the transmission equipment assembly production line as the main line and the typical parts production line as the supply chain link. The typical parts production line selects a large casting production line, and the transmission equipment assembly production line and the large casting production line are dynamically managed through an order-interactive production scheduling management system and a casting production scheduling management terminal. In particular, according to the process and cycle characteristics of the casting production procedure, the production is regulated by introducing the cost estimation value generated based on the distribution of unfinished parts in the process jump node interval. In the case of order changes, production response can be made quickly and a consensus on continued production can be reached, thereby greatly improving production efficiency. The supply chain estimation and control system and method for transmission equipment production of the present invention can be implemented through a mature intelligent manufacturing software platform to improve the intelligence level of the entire line in the production of large transmission equipment such as large reducers.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing platforms, and in particular to a supply chain prediction and control system and method for transmission equipment production. Background Art

[0002] In modern manufacturing, intelligent manufacturing platforms (such as program-controlled platforms based on MES, PLM and other software) are generally used to organize and manage production data and control production lines and terminal equipment. Large transmission equipment production lines are typical discrete assembly production lines. The production process involves many professional fields and most of them are mixed-line production with different cycle lengths. The transmission mechanism and reduction mechanism of large transmission equipment are assembled into assemblies on the production line from countless parts. Most of the parts come from the supply chain. In the production management platform of order-based production, the production and supply of standard parts or small non-standard parts can be flexibly adjusted through dynamic order management programs. However, large shells, frames and other parts that need to be organized and produced by casting and other processes are directly related to the order product model or customer customization requirements. Compared with ordinary parts, the development and manufacturing cycle of such parts is long and the cost is high. Once they have been invested in development or manufacturing, the cost of changing orders is immeasurable. Since most large casting parts production lines and general assembly lines in the supply chain belong to different departments or even different corporate entities, how to quickly respond to production and reach a consensus on continued production in the event of order changes is an important factor affecting production efficiency. At present, there is no supply chain prediction and control system and related processing methods developed to address this situation in the intelligent manufacturing platform of large-scale transmission equipment production lines. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a supply chain forecasting and control system and method for transmission equipment production, which dynamically manages the transmission equipment assembly production line and the large casting production line through an order-interactive production scheduling management system and a casting production scheduling management terminal. In particular, it can quickly respond to production and reach a consensus on continued production in the event of order changes, greatly improving the intelligence level and production efficiency of the entire line.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A supply chain estimation and control system for transmission equipment production, comprising a transmission equipment assembly production line, a parts production line and an assembly production scheduling management system, wherein the parts production line comprises at least one large casting production line, and the production scheduling management system comprises a casting production scheduling management terminal for realizing information exchange between the large casting production line and the transmission equipment assembly production line, and the casting production scheduling management terminal organizes the production of large casting parts according to the transmission equipment orders pre-entered by the assembly production scheduling management system;

[0006] The assembly production scheduling management system includes a dynamic order management program, the assembly production scheduling management system updates the transmission equipment order information through the dynamic order management program, and the casting production scheduling management terminal updates the large casting parts order information according to the updated transmission equipment order information;

[0007] The casting production scheduling management terminal includes or is connected to a spare parts database, and the casting production scheduling management terminal predefines a plurality of process jump nodes of the large casting production line, wherein the process jump nodes include at least a modeling stage node and a casting stage node;

[0008] Wherein, the assembly production scheduling management system and the casting production scheduling management terminal are configured as follows:

[0009] When the assembly production scheduling management system updates the transmission equipment order information through the dynamic order management program, the casting production scheduling management terminal determines whether to change the large casting parts order according to the pre-stored casting parts information. When the large casting parts order does not need to be changed, the production program continues to be executed; when the large casting parts order needs to be changed, first query the spare parts database to determine whether there are alternative casting parts and whether the number of alternative casting parts meets the new order requirements. When the number of alternative casting parts meets the new order requirements, the production program is stopped; when there are no alternative parts or the number of alternative parts does not meet the new order requirements, the following judgments and responses are made:

[0010] First, the quantity distribution of the process where the unfinished parts in the original casting parts order are located between multiple process jump nodes is determined, and the scrapping cost and / or semi-finished product warehousing cost of the unfinished parts are generated according to the quantity distribution of the process where the unfinished parts are located between multiple process jump nodes. When the total cost does not reach a preset threshold, the production program is first stopped, the unfinished parts are scrapped and / or the semi-finished products are put into the warehouse, and then the production program of the large casting production line is executed according to the new order. The semi-finished products of the unfinished parts are sand molds, casting blanks or semi-processed blanks; when the total cost reaches a preset threshold, the production program is first terminated. While terminating the production program, the casting production scheduling management terminal simultaneously sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system, and the production program is continued or the unfinished parts are scrapped and / or the semi-finished product warehousing program is executed after at least one of the casting production scheduling management terminal and the assembly production scheduling management system issues a release instruction.

[0011] Furthermore, the transmission equipment assembly production line is a transmission equipment final assembly production line or a transmission equipment assembly production line, and the large casting production line is a housing casting production line or a frame casting production line of the transmission equipment.

[0012] Furthermore, the transmission device includes a reducer.

[0013] Preferably, the assembly production scheduling management system and the casting production scheduling management terminal are different software platforms communicating via a network or are different management interfaces based on the same software platform.

[0014] Optionally, the software platform is a program control platform based on MES or PLM software.

[0015] Preferably, the process jump node also includes at least one casting machining stage node.

[0016] The present invention also provides a method for producing transmission equipment based on the above supply chain estimation and control system. The method comprises the following steps:

[0017] S1, the assembly scheduling management system updates the transmission equipment order information through a dynamic order management program;

[0018] S2, the casting production scheduling management terminal determines whether to change the large casting parts order according to the pre-stored casting parts information, and when the large casting parts order does not need to be changed, continues to execute the production program; when the large casting parts order needs to be changed, executes step S3;

[0019] S3, the casting production scheduling management terminal first determines whether there are alternative casting parts and whether the number of alternative casting parts meets the new order requirements by querying the spare parts database. When the number of alternative casting parts meets the new order requirements, the production program is stopped; when there are no alternative parts or the number of alternative parts does not meet the new order requirements, step S4 is executed;

[0020] S4, the casting production scheduling management terminal first determines the quantity distribution of the process where the unfinished parts in the original casting parts order are located between multiple process jump nodes, and generates the scrapping cost and / or semi-finished product warehousing cost of the unfinished parts according to the quantity distribution of the process where the unfinished parts are located between multiple process jump nodes. When the total cost does not reach the preset threshold, the production program is stopped first, the unfinished parts are scrapped and / or the semi-finished products are put into the warehouse, and then the production program of the large casting production line is executed according to the new order. The semi-finished product of the unfinished parts is a sand mold, a casting blank or a semi-processed blank; when the total cost reaches the preset threshold, step S5 is executed;

[0021] S5, the casting production scheduling management terminal first suspends the production program. While suspending the production program, the casting production scheduling management terminal simultaneously sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system, and executes the production continuation procedure or the scrapping of unfinished parts and / or the warehousing procedure of semi-finished products after at least one of the casting production scheduling management terminal and the assembly production scheduling management system issues a release instruction.

[0022] Preferably, in step S4, when estimating the total cost based on the quantity distribution of the process in which the unfinished parts are located between multiple process jump nodes, when there are multiple processing processes in the interval between two predefined process jump nodes, the unit cost price in the interval is estimated as a constant value.

[0023] Preferably, in step S5, after the casting production scheduling management terminal sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system at the same time, the casting production scheduling management terminal and the assembly production scheduling management system simultaneously issue release instructions and then execute the production continuation procedure or the unfinished parts scrapping and / or semi-finished product warehousing procedure.

[0024] The beneficial effects of the present invention are:

[0025] The present invention provides a supply chain prediction and control system and method for transmission equipment production for a typical discrete assembly production line for transmission equipment production. The transmission equipment assembly production line and the large casting production line are dynamically managed through an order-interactive production scheduling management system and a casting production scheduling management terminal. In particular, according to the process and cycle characteristics of the casting production program, production is controlled by introducing cost estimation values ​​generated based on the distribution of unfinished parts in process jump node intervals. In the event of an order change, production response can be made quickly and a consensus on continued production can be reached, thereby greatly improving production efficiency. The supply chain prediction and control system and method for transmission equipment production of the present invention can be implemented through a mature intelligent manufacturing software platform, so as to improve the intelligence level of the entire line in the production of large transmission equipment such as large reducers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the interaction principle between each production line and the management platform of the supply chain prediction and control system for transmission equipment production of the present invention.

[0027] Figure 2 The present invention is a schematic diagram of the cost estimation and control means introduced into the process jump node of the casting production line based on the present invention.

[0028] Figure 3 This is another schematic diagram of the present invention for introducing a cost estimation and control means based on a process jump node of a casting production line. DETAILED DESCRIPTION

[0029] Exemplary embodiments of the present disclosure will be described below in more detail with reference to the accompanying drawings.

[0030] Example 1

[0031] The supply chain forecasting and control system for transmission equipment production includes a transmission equipment assembly production line, a parts production line, and an assembly scheduling management system.

[0032] The transmission equipment in this embodiment may be a large-scale speed reducer, and the assembly production line may be a transmission equipment final assembly production line or a transmission equipment assembly production line, and each parts production line is regarded as a link in the supply chain of the assembly production line.

[0033] like Figure 1 As shown, in this embodiment, the parts production line includes at least one large casting production line, where the large casting production line is a housing casting production line or a frame casting production line for a transmission device.

[0034] The production scheduling management system includes a casting scheduling management terminal for realizing information exchange between the large casting production line and the transmission equipment assembly production line. The casting scheduling management terminal organizes the production of large casting parts according to the transmission equipment orders pre-entered by the assembly scheduling management system.

[0035] The intelligent manufacturing software platform for mixed-line production is generally constructed according to the enterprise's production organization model. According to the agreement reached by the production departments, the assembly production scheduling management system and the casting production scheduling management terminal can be different software platforms communicating through the network, or they can be different management interfaces based on the same software platform. Specifically, it can be a program-controlled platform based on mature MES or PLM software.

[0036] In this embodiment, the assembly production scheduling management system includes a dynamic order management program, the assembly production scheduling management system updates the transmission equipment order information through the dynamic order management program, and the casting production scheduling management terminal updates the large casting parts order information according to the updated transmission equipment order information. A further improvement of this embodiment is that the casting production scheduling management terminal includes or is connected to a spare parts database, and the casting production scheduling management terminal predefines a plurality of process jump nodes of the large casting production line, and the process jump nodes include at least a molding stage node and a casting stage node. Figure 2 The figure shows a predefined method of defining a modeling stage node and a casting stage node in a casting production program.

[0037] The assembly production scheduling management system and the casting production scheduling management terminal are configured as follows: when the assembly production scheduling management system updates the transmission equipment order information through the dynamic order management program, the casting production scheduling management terminal determines whether to change the large casting part order based on the pre-stored casting part information (model, code, specification and / or multi-dimensional shape data), and when the large casting part order does not need to be changed, the production program continues to be executed. When the large casting part order needs to be changed, first determine whether there are alternative casting parts and whether the number of alternative casting parts meets the new order requirements by querying the spare parts database, and stop the production program when the number of alternative casting parts meets the new order requirements. When there are no alternative parts or the number of alternative parts does not meet the new order requirements, the following judgment and response are made: first, the quantity distribution of the unfinished parts in the original casting parts order between multiple process jump nodes is judged, and the scrapping cost and / or semi-finished product warehousing cost of the unfinished parts are generated according to the quantity distribution of the unfinished parts in the process between multiple process jump nodes. When the total cost does not reach the preset threshold, the production program is stopped first, the unfinished parts are scrapped and / or the semi-finished products are put into storage, and then the production program of the large casting production line is executed according to the new order, from Figure 2 It can be seen from the casting production procedure shown that the semi-finished product of the unfinished parts may be a sand mold, a casting blank or a semi-processed blank. When the total cost reaches a preset threshold, the production procedure is first suspended. At the same time, the casting production scheduling management terminal simultaneously sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system. After at least one of the casting production scheduling management terminal and the assembly production scheduling management system issues a release instruction, the production procedure is continued or the unfinished parts are scrapped and / or the semi-finished product storage procedure is executed.

[0038] This embodiment dynamically manages the transmission equipment assembly production line and the large casting production line through the order interactive production scheduling management system and the casting production scheduling management terminal. In particular, according to the process and cycle characteristics of the casting production program, the production is regulated by introducing the cost estimate value generated based on the distribution of unfinished parts in the process jump node interval. Here, the cost estimate value generated based on the distribution of unfinished parts in the process jump node interval (that is, the "total cost" mentioned above) can be calculated according to the following formula:

[0039] P=P 1-2 M 1-2 +P 2-3 M 2-3 +…+P (N-1)-N M (N-1)-N +P N M N

[0040] In the above formula:

[0041] P1-2 Represents the estimated unit price of the cost from reaching the first process jump node to not yet reaching the second process jump node;

[0042] M 1-2 Represents the total amount of raw materials / products from reaching the first process jump node to not yet reaching the second process jump node;

[0043] P 2-3 Represents the estimated unit cost from reaching the second process jump node to not yet reaching the third process jump node;

[0044] M 2-3 Represents the total amount of raw materials / products from reaching the second process jump node to not yet reaching the third process jump node;

[0045] P (N-1)-N Represents the estimated unit cost from reaching the N-1th process jump node to not yet reaching the Nth process jump node;

[0046] M (N-1)-N Represents the total amount of raw materials / products from reaching the N-1th process jump node to the Nth process jump node;

[0047] P N Represents the estimated unit cost of reaching the Nth process jump node and beyond;

[0048] M N Represents the total amount of raw materials / products reaching the Nth process jump node and beyond.

[0049] For example, in Figure 2 In the schematic diagram of introducing cost estimation and control means based on process jump nodes of casting production lines shown in the figure, two process jump nodes are defined. The first process jump node is the molding stage node, and the process stage information of sand molds and sand cores completed or basically completed (it can also be just core sand molds) is defined as the molding stage node. The second process jump node is the casting stage node, and the process stage information after the casting action is triggered is defined as the casting stage node. The specific node is selected according to the cost consumed by the key procedures in the production program. For example, in this embodiment, the casting stage node is defined but the smelting stage node is not defined because the smelting materials are generally universal or can be used for changed order products by adjusting the composition.

[0050] As needed, the above formula can introduce new parameters at any time. For example, when the cost before the first process jump node needs to be considered (for example, the cost is related to raw material procurement), it can be improved as follows:

[0051] P=P 1′ M 1′ +P 1-2 M1-2 +P 2-3 M 2-3 +…+P (N -1)-NM (N-1)-N +P N M N

[0052] In the above formula:

[0053] P 1′ Represents the estimated unit price of the cost that has entered the production process before the first process jump node;

[0054] M 1′ Represents the total amount of raw materials / products that have entered the production process before the first process jump node.

[0055] It should be noted that the above introduction of P and M is only an example. According to the different requirements of specific products, the production process on the production line is not static. Each production procedure may have a qualitative impact on the cost estimation. For example, when estimating the total cost based on the quantity distribution of the process where unfinished parts are located between multiple process jump nodes, when there are multiple processing processes in the interval between two predefined process jump nodes, estimating the unit cost price in the interval as a constant is an optimized algorithm, but each PM product value can also be decomposed based on the process. Of course, it can also be achieved by adding a process as a new process jump node.

[0056] Example 2

[0057] This embodiment provides a method for producing transmission equipment according to the supply chain estimation and control system of embodiment 1. The method comprises the following steps:

[0058] S1, the assembly scheduling management system updates the transmission equipment order information through a dynamic order management program;

[0059] S2, the casting production scheduling management terminal determines whether to change the large casting part order according to the pre-stored casting part information (model, code, specification and / or multi-dimensional shape data), and when the large casting part order does not need to be changed, continues to execute the production program; when the large casting part order needs to be changed, executes step S3;

[0060] S3, the casting production scheduling management terminal first determines whether there are alternative casting parts and whether the number of alternative casting parts meets the new order requirements by querying the spare parts database. When the number of alternative casting parts meets the new order requirements, the production program is stopped; when there are no alternative parts or the number of alternative parts does not meet the new order requirements, step S4 is executed;

[0061] S4, the casting production scheduling management terminal first determines the quantity distribution of the process where the unfinished parts in the original casting parts order are located between multiple process jump nodes, and generates the scrapping cost and / or semi-finished product warehousing cost of the unfinished parts according to the quantity distribution of the process where the unfinished parts are located between multiple process jump nodes. When the total cost does not reach the preset threshold, the production program is stopped first, the unfinished parts are scrapped and / or the semi-finished products are put into the warehouse, and then the production program of the large casting production line is executed according to the new order. The semi-finished product of the unfinished parts is a sand mold, a casting blank or a semi-processed blank; when the total cost reaches the preset threshold, step S5 is executed;

[0062] S5, the casting production scheduling management terminal first suspends the production program. While suspending the production program, the casting production scheduling management terminal simultaneously sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system, and executes the production continuation procedure or the scrapping of unfinished parts and / or the warehousing procedure of semi-finished products after at least one of the casting production scheduling management terminal and the assembly production scheduling management system issues a release instruction.

[0063] Preferably, in step S4, when estimating the total cost based on the quantity distribution of the process in which the unfinished parts are located between multiple process jump nodes, when there are multiple processing processes in the interval between two predefined process jump nodes, the unit cost price in the interval is estimated as a constant value.

[0064] Preferably, in step S5, after the casting production scheduling management terminal sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system at the same time, the casting production scheduling management terminal and the assembly production scheduling management system simultaneously issue release instructions and then execute the production continuation procedure or the unfinished parts scrapping and / or semi-finished product warehousing procedure.

[0065] In the method of the present invention, the semi-finished product storage data of the unfinished parts can also be synchronously entered into the spare parts database mentioned in step S3, and classified by status identification in the spare parts database, which can be used for program query and call.

[0066] The above-mentioned embodiment provides a supply chain estimation and control solution for transmission equipment production. The transmission equipment assembly production line and the large casting production line are dynamically managed through the order-interactive production scheduling management system and the casting production scheduling management terminal. In particular, according to the process and cycle characteristics of the casting production procedure, the production is regulated by introducing the cost estimate value generated based on the distribution of unfinished parts in the process jump node interval. In the event of an order change, production response can be made quickly and a consensus on continued production can be reached, which greatly improves production efficiency. It can be implemented through a mature intelligent manufacturing software platform to improve the intelligence level of the entire line in the production of large-scale transmission equipment such as large reducers.

[0067] Example 3

[0068] This embodiment provides a supply chain prediction and control system and method for transmission equipment production. The difference from Embodiment 1 and Embodiment 2 is that this embodiment provides a solution for a large casting production line that integrates machining procedures.

[0069] like Figure 3 As shown, Figure 3 This is a schematic diagram of the cost estimation and control means introduced based on the process jump nodes of the casting production line in this embodiment. Since the machining program is integrated into the large casting production line in this embodiment, at least one casting machining stage node must be defined to accurately estimate the cost for production control. Three process jump nodes are defined in the figure. The first process jump node is the modeling stage node, and the process stage information of the sand mold and sand core being completed or basically completed (it can also be just the core sand mold) is defined as the modeling stage node. The second process jump node is the casting stage node, and the process stage information after the casting action is triggered is defined as the casting stage node. The third process jump node is the machining stage node, and the process stage information of the casting machining in progress is defined as the machining stage node. Obviously, the machining process here can also refer to only the core machining process.

[0070] The method for generating cost estimates based on the distribution of unfinished parts in process jump node intervals is still the same as that introduced in Example 1.

[0071] The above description is only a preferred specific implementation of the present invention, and the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A supply chain estimation and control system for transmission equipment production, including a transmission equipment assembly production line, a parts production line, and an assembly scheduling management system, characterized by: The parts production line includes at least one large casting production line, the production scheduling management system includes a casting production scheduling management terminal for realizing information exchange between the large casting production line and the transmission equipment assembly production line, and the casting production scheduling management terminal organizes the production of large casting parts according to the transmission equipment orders pre-entered by the assembly production scheduling management system; The assembly production scheduling management system includes a dynamic order management program, the assembly production scheduling management system updates the transmission equipment order information through the dynamic order management program, and the casting production scheduling management terminal updates the large casting parts order information according to the updated transmission equipment order information; The casting production scheduling management terminal includes or is connected to a spare parts database, and the casting production scheduling management terminal predefines a plurality of process jump nodes of the large casting production line, wherein the process jump nodes include at least a modeling stage node and a casting stage node; Wherein, the assembly production scheduling management system and the casting production scheduling management terminal are configured as follows: When the assembly production scheduling management system updates the transmission equipment order information through the dynamic order management program, the casting production scheduling management terminal determines whether to change the large casting parts order according to the pre-stored casting parts information, and continues to execute the production program when the large casting parts order does not need to be changed; When it is necessary to change the order of large casting parts, first query the spare parts database to determine whether there are alternative casting parts and whether the quantity of alternative casting parts meets the new order requirements. When the number of alternative casting parts meets the new order requirements, stop the production program; when there are no alternative parts or the number of alternative parts does not meet the new order requirements, make the following judgments and responses: First, the quantity distribution of the process where the unfinished parts in the original casting parts order are located between multiple process jump nodes is determined, and the scrapping cost and / or semi-finished product warehousing cost of the unfinished parts are generated according to the quantity distribution of the process where the unfinished parts are located between multiple process jump nodes. When the total cost does not reach a preset threshold, the production program is first stopped, the unfinished parts are scrapped and / or the semi-finished products are put into the warehouse, and then the production program of the large casting production line is executed according to the new order. The semi-finished products of the unfinished parts are sand molds, casting blanks or semi-processed blanks; when the total cost reaches a preset threshold, the production program is first terminated. While terminating the production program, the casting production scheduling management terminal simultaneously sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system, and the production program is continued or the unfinished parts are scrapped and / or the semi-finished product warehousing program is executed after at least one of the casting production scheduling management terminal and the assembly production scheduling management system issues a release instruction.

2. The supply chain estimation and control system for transmission equipment production according to claim 1 is characterized in that: The transmission equipment assembly production line is a transmission equipment final assembly production line or a transmission equipment assembly production line, and the large casting production line is a housing casting production line or a frame casting production line for transmission equipment.

3. The supply chain estimation and control system for transmission equipment production according to claim 2 is characterized in that: The transmission device includes a speed reducer.

4. The supply chain estimation and control system for transmission equipment production according to claim 1 is characterized in that: The assembly production scheduling management system and the casting production scheduling management terminal are different software platforms communicating through a network or are different management interfaces based on the same software platform.

5. The supply chain prediction and control system for transmission equipment production according to claim 4 is characterized in that: The software platform is a program control platform based on MES or PLM software.

6. The supply chain prediction and control system for transmission equipment production according to claim 1 is characterized in that: The process jump node also includes at least one casting machining stage node.

7. A method for producing transmission equipment using the supply chain estimation and control system according to any one of claims 1 to 6, characterized in that: The steps include: S1, the assembly scheduling management system updates the transmission equipment order information through a dynamic order management program; S2, the casting production scheduling management terminal determines whether to change the large casting parts order according to the pre-stored casting parts information, and when the large casting parts order does not need to be changed, continues to execute the production program; when the large casting parts order needs to be changed, executes step S3; S3, the casting production scheduling management terminal first determines whether there are alternative casting parts and whether the number of alternative casting parts meets the new order requirements by querying the spare parts database. When the number of alternative casting parts meets the new order requirements, the production program is stopped; when there are no alternative parts or the number of alternative parts does not meet the new order requirements, step S4 is executed; S4, the casting production scheduling management terminal first determines the quantity distribution of the process where the unfinished parts in the original casting parts order are located between multiple process jump nodes, and generates the scrapping cost and / or semi-finished product warehousing cost of the unfinished parts according to the quantity distribution of the process where the unfinished parts are located between multiple process jump nodes. When the total cost does not reach the preset threshold, the production program is stopped first, the unfinished parts are scrapped and / or the semi-finished products are put into the warehouse, and then the production program of the large casting production line is executed according to the new order. The semi-finished product of the unfinished parts is a sand mold, a casting blank or a semi-processed blank; when the total cost reaches the preset threshold, step S5 is executed; S5, the casting production scheduling management terminal first suspends the production program. While suspending the production program, the casting production scheduling management terminal simultaneously sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system, and executes the production continuation procedure or the scrapping of unfinished parts and / or the warehousing procedure of semi-finished products after at least one of the casting production scheduling management terminal and the assembly production scheduling management system issues a release instruction.

8. The method for producing a transmission device according to claim 7, characterized in that: In step S4, when estimating the total cost based on the quantity distribution of the process where the unfinished parts are located between multiple process jump nodes, when there are multiple processing processes in the interval between two predefined process jump nodes, the unit cost price in the interval is estimated as a constant value.

9. The method for producing a transmission device according to claim 7, characterized in that: In step S5, the casting production scheduling management terminal sends an offline business agreement reminder to its platform management interface and the platform management interface of the assembly production scheduling management system at the same time, and then executes the production continuation procedure or the unfinished parts scrapping and / or semi-finished product warehousing procedure after the casting production scheduling management terminal and the assembly production scheduling management system simultaneously issue release instructions.

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