Shanghai Machine Tool Plant Basic Information
Founded in 1946, Shanghai Machine Tool Plant (formerly Shanghai Machine Tool Works Co., Ltd.) is China's largest professional manufacturer of precision grinding machines and precision measuring instruments. In 1996, the company was restructured and established by Shanghai No. 3 Machine Tool Plant, Shanghai No. 8 Machine Tool Plant, Shanghai Wood.
The State-owned Sole Co., Ltd., which has joined the Machinery Machinery Plant, Shanghai Measuring Tool and Blade Factory, and Shanghai Xinghuo Mould Factory. The company is affiliated to Shanghai Electric (Group) Corporation.
Since 1950, the company has produced various types of grinding machines, and its varieties and specifications account for one-third of the national grinding machine industry. The main products are: cylindrical grinding machine, universal cylindrical grinding machine, surface grinding machine, roll grinding machine, crankshaft grinding machine, double end grinding machine, spline shaft grinding machine, gear grinding machine, thread screw grinding machine, camshaft grinding machine, elliptical chamfering grinding machine, etc. Ordinary grinding machines, special grinding machines, CNC grinding machines, as well as three coordinate measuring instruments, roundness measuring instruments, gear oil pumps, diamond rollers, etc., a variety of products have won the Shanghai and the National Quality Products Award, and in the domestic leading level.
The company covers an area of ​​354,200 square meters, has a constant temperature workshop of 15,300 square meters, and more than 1,200 sets of processing equipment. Among them, a number of CNC machine tools, instruments and production lines have reached the international advanced level. It is one of China's export bases for mechanical and electrical products. It has direct foreign legal person qualifications. It has established ECOTECH MACHINERY ING with foreign companies in China and Sino-Singapore Machine Tool Co., Ltd. in Singapore. From 1988 to 1993, the company used the World Bank loan to rationalize and modernize the plant, and introduced the CNC external circle, crankshaft, camshaft grinding machine of the Landis Grinding Company of the United States, and the precise three-dimensional coordinates of LEITZ. The measuring machine and the manufacturing technology of the grinding machine CNC system of Siemens (SIEMENS) have laid a solid foundation for the scientific and technological progress of the enterprise and the upgrading of the products.
PDM project overall introduction
Shanghai Machine Tool Plant attaches great importance to product design and has strict management methods. However, there are many problems in efficiency and technology through manual management of electronic data. The version and borrowing management of electronic data resources are a blank. The data sharing between designers is basically realized by the experience of the designers and the familiarity with the products. There is no good product resource management and search. In this way, design resources cannot be effectively shared. And as the company's technical department continues to expand, new designers are familiar with the product for a long time, and it is difficult to quickly take over new jobs. From the perspective of the entire enterprise level, other departments cannot provide an effective query tool when accessing the information of the technical department.
The management of the company attaches great importance to the construction of information technology, and the investment in information technology is also early in China. In order to fundamentally solve the above problems, it was decided to establish a product data management platform that supports enterprise design and process technology management. Through a detailed examination of the strength of PDM/PLM products and software vendors at home and abroad, we have selected a number of successful integrated solution cases in the machine tool industry, and established an informatization strategic cooperation with Axter, which has a deep understanding of manufacturing informationization. relationship.
Through the analysis of the main problems existing in the enterprise technology management work, combined with the experience of the implementation of the Axter company in the machine tool industry, the following technical routes for the PDM project are determined:
Carry out CAD, PDM basic applications, assist in the generation and management of standardized product data
In mechanical design, combined with the CAD system, based on a shared unified product database on the basis of shared database of ERP in the process of working to produce data, ERP provides the tools to read the underlying data, fill in the file and automatically Centrally manage data in batches into PDM systems. Increase data legality testing and data analysis tools to ensure consistent product data in PDM and ERP databases.
Support workflow applications, standardize technical management, and improve data accuracy
According to the “solution design-assembly design-partial design-part design†process generally used in machine tool development, in the product design and design change, the workflow management technology is used separately, by assigning tasks, managing work data, conducting online approval and filing. The control of distribution, change, and product data can be well managed in the process of production, reducing the quality problems caused by the production process. According to the structure tree, organize the product structure, reports and other information generated during the work process, provide red line annotation, electronic signature and other means to assist in online approval work, record the approval results, and make the technical management work more standardized.
CAD PDMERP is tightly integrated to provide accurate product data for critical ERP applications
All the work, the ultimate goal is to make the ERP system fully applicable, in order to ensure that the ERP system can obtain complete, consistent and accurate product data in CAD, PDM for a large number of detailed processing. Through the PDM system, the design BOM information is released to the ERP system. Through the structural adjustment of the CAPP, the process BOM information is released to the ERP system, and the process BOM information, the process route, and the quota information are combined to form the BOM information required for the ERP system. This provides qualified product structure information for the ERP system.
Introduction to PDM/CAPP project innovation
In the implementation process of this project, the biggest difference from the previous technical route is the formation and management of self-made material codes.
In the process of continuous exploration of information technology, enterprises have always believed that the establishment of a scientific coding system suitable for the future development of the enterprise is an important foundation for information construction. Between 2000 and 2005, the organization of the coding system was tried and tried several times. The coding system was easy to draft. The coding system of Shanghai Machine Tool Factory is characterized by the combination of flow code and classification code. The flow code is used for unique identification of material code, the classification code is applied to the classification and query of materials, and the use of group technology is applied to production to improve labor productivity. The overall coding rules are as follows:
Founded in 1946, Shanghai Machine Tool Plant (formerly Shanghai Machine Tool Works Co., Ltd.) is China's largest professional manufacturer of precision grinding machines and precision measuring instruments. In 1996, the company was restructured and established by Shanghai No. 3 Machine Tool Plant, Shanghai No. 8 Machine Tool Plant, Shanghai Wood.
The State-owned Sole Co., Ltd., which has joined the Machinery Machinery Plant, Shanghai Measuring Tool and Blade Factory, and Shanghai Xinghuo Mould Factory. The company is affiliated to Shanghai Electric (Group) Corporation.
Since 1950, the company has produced various types of grinding machines, and its varieties and specifications account for one-third of the national grinding machine industry. The main products are: cylindrical grinding machine, universal cylindrical grinding machine, surface grinding machine, roll grinding machine, crankshaft grinding machine, double end grinding machine, spline shaft grinding machine, gear grinding machine, thread screw grinding machine, camshaft grinding machine, elliptical chamfering grinding machine, etc. Ordinary grinding machines, special grinding machines, CNC grinding machines, as well as three coordinate measuring instruments, roundness measuring instruments, gear oil pumps, diamond rollers, etc., a variety of products have won the Shanghai and the National Quality Products Award, and in the domestic leading level.
The company covers an area of ​​354,200 square meters, has a constant temperature workshop of 15,300 square meters, and more than 1,200 sets of processing equipment. Among them, a number of CNC machine tools, instruments and production lines have reached the international advanced level. It is one of China's export bases for mechanical and electrical products. It has direct foreign legal person qualifications. It has established ECOTECH MACHINERY ING with foreign companies in China and Sino-Singapore Machine Tool Co., Ltd. in Singapore. From 1988 to 1993, the company used the World Bank loan to rationalize and modernize the plant, and introduced the CNC external circle, crankshaft, camshaft grinding machine of the Landis Grinding Company of the United States, and the precise three-dimensional coordinates of LEITZ. The measuring machine and the manufacturing technology of the grinding machine CNC system of Siemens (SIEMENS) have laid a solid foundation for the scientific and technological progress of the enterprise and the upgrading of the products.
PDM project overall introduction
Shanghai Machine Tool Plant attaches great importance to product design and has strict management methods. However, there are many problems in efficiency and technology through manual management of electronic data. The version and borrowing management of electronic data resources are a blank. The data sharing between designers is basically realized by the experience of the designers and the familiarity with the products. There is no good product resource management and search. In this way, design resources cannot be effectively shared. And as the company's technical department continues to expand, new designers are familiar with the product for a long time, and it is difficult to quickly take over new jobs. From the perspective of the entire enterprise level, other departments cannot provide an effective query tool when accessing the information of the technical department.
The management of the company attaches great importance to the construction of information technology, and the investment in information technology is also early in China. In order to fundamentally solve the above problems, it was decided to establish a product data management platform that supports enterprise design and process technology management. Through a detailed examination of the strength of PDM/PLM products and software vendors at home and abroad, we have selected a number of successful integrated solution cases in the machine tool industry, and established an informatization strategic cooperation with Axter, which has a deep understanding of manufacturing informationization. relationship.
Through the analysis of the main problems existing in the enterprise technology management work, combined with the experience of the implementation of the Axter company in the machine tool industry, the following technical routes for the PDM project are determined:
Carry out CAD, PDM basic applications, assist in the generation and management of standardized product data
In mechanical design, combined with the CAD system, based on a shared unified product database on the basis of shared database of ERP in the process of working to produce data, ERP provides the tools to read the underlying data, fill in the file and automatically Centrally manage data in batches into PDM systems. Increase data legality testing and data analysis tools to ensure consistent product data in PDM and ERP databases.
Support workflow applications, standardize technical management, and improve data accuracy
According to the “solution design-assembly design-partial design-part design†process generally used in machine tool development, in the product design and design change, the workflow management technology is used separately, by assigning tasks, managing work data, conducting online approval and filing. The control of distribution, change, and product data can be well managed in the process of production, reducing the quality problems caused by the production process. According to the structure tree, organize the product structure, reports and other information generated during the work process, provide red line annotation, electronic signature and other means to assist in online approval work, record the approval results, and make the technical management work more standardized.
CAD PDMERP is tightly integrated to provide accurate product data for critical ERP applications
All the work, the ultimate goal is to make the ERP system fully applicable, in order to ensure that the ERP system can obtain complete, consistent and accurate product data in CAD, PDM for a large number of detailed processing. Through the PDM system, the design BOM information is released to the ERP system. Through the structural adjustment of the CAPP, the process BOM information is released to the ERP system, and the process BOM information, the process route, and the quota information are combined to form the BOM information required for the ERP system. This provides qualified product structure information for the ERP system.
Introduction to PDM/CAPP project innovation
In the implementation process of this project, the biggest difference from the previous technical route is the formation and management of self-made material codes.
In the process of continuous exploration of information technology, enterprises have always believed that the establishment of a scientific coding system suitable for the future development of the enterprise is an important foundation for information construction. Between 2000 and 2005, the organization of the coding system was tried and tried several times. The coding system was easy to draft. The coding system of Shanghai Machine Tool Factory is characterized by the combination of flow code and classification code. The flow code is used for unique identification of material code, the classification code is applied to the classification and query of materials, and the use of group technology is applied to production to improve labor productivity. The overall coding rules are as follows:
Shanghai Machine Tool Plant coding system icon
Before the project started, the two parties had conducted in-depth communication on how to use the PDM system to realize the generation and management of the code. Finally, in the implementation plan, it was determined to use the unique unified coding system of Axter to solve the generation and management of the code.
Establishment of material coding rules
In order to establish an encoding system, it is first necessary to determine which parts of the encoding are included according to the numbering rules of the encoding system (herein collectively referred to as code segments); the type of the code segment: whether it is a fixed value, or a type selection, a date type, an account type, or an input type. , script type, serial number, etc.; the relationship between the code segment and the code segment, and the code segments are arranged in sequence according to the order determined by the association relationship. According to the above information, in the unified coding system, according to the material coding system of Shanghai Machine Tool Plant, the material rules of mechanical parts, parts, blanks, etc. are established, similar to the following figure:
Homemade material code application
The application for the home-made material code can be implemented in both the XTPDM system and the Axter's TeamDesigner software, making it easy for designers to operate in both environments.
At the time of application, the designer can apply for a material code that is not available in the system, and can also query an existing material code in the material code library.
Coding application interface
Select part classification
The code applied for is shown in the figure below, and the material code (flow code + classification code) of the part is obtained, and the material code (flow code + classification code) of the corresponding blank of the part is obtained according to the rules. After selecting the part material code, the material code of the blank is implemented by a secondary development script.
Coding application result
In order to establish an encoding system, it is first necessary to determine which parts of the encoding are included according to the numbering rules of the encoding system (herein collectively referred to as code segments); the type of the code segment: whether it is a fixed value, or a type selection, a date type, an account type, or an input type. , script type, serial number, etc.; the relationship between the code segment and the code segment, and the code segments are arranged in sequence according to the order determined by the association relationship. According to the above information, in the unified coding system, according to the material coding system of Shanghai Machine Tool Plant, the material rules of mechanical parts, parts, blanks, etc. are established, similar to the following figure:
Homemade material code application
The application for the home-made material code can be implemented in both the XTPDM system and the Axter's TeamDesigner software, making it easy for designers to operate in both environments.
At the time of application, the designer can apply for a material code that is not available in the system, and can also query an existing material code in the material code library.
Coding application interface
Select part classification
The code applied for is shown in the figure below, and the material code (flow code + classification code) of the part is obtained, and the material code (flow code + classification code) of the corresponding blank of the part is obtained according to the rules. After selecting the part material code, the material code of the blank is implemented by a secondary development script.
Coding application result
The applied part flow code, classification code, blank flow code, and classification code data are written in the corresponding attributes of the drawing title bar according to the corresponding configuration, as shown in the following figure:
This completes the application and record of the self-made material code in the two-dimensional design environment;
Query code
For the material code already existing in the system, the designer can directly query according to the category code, and the result of the query can be directly fed back to the attribute of the detail number or the title bar.
Query existing coding interface
How to manage material codes in PDM
In XTPDM, the material flow code, classification code, blank flow code, and classification code are saved to the PDM database along with the current part number. The part number here refers to the expression method that the machine tool industry is very familiar with from design, process, and to production. The product model + part number + part sequence number is used as the unique identification code in PDM. This kind of processing not only satisfies the requirements of the users in the system, but also can view the product structure, parts and components, generate reports according to the existing habits, and complete the design review, change, configuration and other major tasks. At the same time, you can also use the classification code to query the serial number and part number to meet the operational requirements of the user.
When the product structure is integrated with ERP , two methods are also provided. One is to transfer the product structure with the current part number as the unique identifier, and the material flow code, classification code, blank classification code, and running water code are passed as material attributes; another way The flow code is used as the unique identifier to convey the product structure, and the classification code and the current part number are passed as attribute values. This satisfies the requirements of the enterprise for material code integration.
PDM project application overall results
The cooperation between the PDM project and the Shanghai Machine Tool Plant has been relatively smooth. Through the acceptance of the two organizations, the technical route involved has not been completed except for the ERP integration work. The technical routes and application subsystems have been obtained at the Shanghai Machine Tool Plant Grinding Institute and Shangyi Company. Promotion and application have a model role in the same industry.
This completes the application and record of the self-made material code in the two-dimensional design environment;
Query code
For the material code already existing in the system, the designer can directly query according to the category code, and the result of the query can be directly fed back to the attribute of the detail number or the title bar.
Query existing coding interface
How to manage material codes in PDM
In XTPDM, the material flow code, classification code, blank flow code, and classification code are saved to the PDM database along with the current part number. The part number here refers to the expression method that the machine tool industry is very familiar with from design, process, and to production. The product model + part number + part sequence number is used as the unique identification code in PDM. This kind of processing not only satisfies the requirements of the users in the system, but also can view the product structure, parts and components, generate reports according to the existing habits, and complete the design review, change, configuration and other major tasks. At the same time, you can also use the classification code to query the serial number and part number to meet the operational requirements of the user.
When the product structure is integrated with ERP , two methods are also provided. One is to transfer the product structure with the current part number as the unique identifier, and the material flow code, classification code, blank classification code, and running water code are passed as material attributes; another way The flow code is used as the unique identifier to convey the product structure, and the classification code and the current part number are passed as attribute values. This satisfies the requirements of the enterprise for material code integration.
PDM project application overall results
The cooperation between the PDM project and the Shanghai Machine Tool Plant has been relatively smooth. Through the acceptance of the two organizations, the technical route involved has not been completed except for the ERP integration work. The technical routes and application subsystems have been obtained at the Shanghai Machine Tool Plant Grinding Institute and Shangyi Company. Promotion and application have a model role in the same industry.
What are the precautions for portable toilet construction?
Now many tourist attractions and resident activity areas need to install mobile toilets. This kind of public beta construction cost is low, and it is easy to use. It can also increase or decrease the number of toilets at any time according to the area of the site. The daily application is also guaranteed. Portable toilet is also a kind of prefab houses, which can be customized in size, but what should be paid attention to when building this type of toilet?
Privacy guaranteed
After all, the toilet is still a relatively private space. Although it is a public beta, we must also pay attention to privacy protection. At least the toilet door should be opaque, and there is a door lock inside, which can be opened and closed at any time, which can also ensure safety. The portable toilet produced by our company adopts steel structure frame and Eps Sandwich Panel, with guaranteed strength and safety.
Complete functional area
Mobile toilets also have certain functional areas. Even some small toilets should at least have toilets, sinks, showers, etc. The design of the public area must be determined. If it is a single room design, then at least there must be a sink, and if it is a large toilet, then there must be divisions of different functional areas.
Guaranteed stability
Because this type of toilet generally needs to be made using Container House, color steel, etc., we still need to pay special attention to its stability. Most toilets have certain wheels, so it is also very convenient to move and disassemble at any time. But relatively speaking, its stability is poor, so we cannot ignore the stability of the mobile toilet.
Guaranteed to be environmentally friendly
The public test still needs to have an environmental protection effect. The steel plate can be used repeatedly, but it must also have a certain thickness and corrosion resistance. Only in this way can the reliability of the long-term use of the toilet be guaranteed, so when the toilet is constructed, it is necessary to start with the selection of materials for comparison, so that the long-term use of the toilet is truly guaranteed.
When building a mobile toilet, the basic design and construction must be done well, and attention must be paid to the specific quality of the steel plate, whether it is suitable for long-term use, etc., and the price must also be measured.
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Henan Jinming Metal Material Co., Ltd. , https://www.jinminghouse.com