Analysis of Punching Technology for Panel Furniture
Guide: As we all know, punching process is an indispensable process in the production process of panel furniture. Whether the part punching process organization of a panel furniture product is reasonable or not directly affects the production efficiency and production cost.
It is well known that the punching process is an indispensable process in the production process of panel furniture. Whether the part punching process organization of a panel furniture product is reasonable or not directly affects the production efficiency and production cost. Group technology is to classify and group various products, components and parts of an enterprise according to certain similarity criteria, and organize each link of production on the basis of these groups, so as to realize the rationalization of design, manufacturing and management of multi variety, small and medium batch products. It is a new technology that can improve the production efficiency of medium and small batch products.
1、 The basic theory of group technology guiding the discipline of group technology is the principle of similarity. The mechanical manufacturing industry applies this principle to classify and group the components and parts of a variety of products according to certain similarity criteria, according to the similarity of specifications, shapes, manufacturing processes, equipment used, tooling, etc., and then manufacture them from the parts group, so as to expand the product batch. Its purpose is to realize the optimization of product variety, product design, process design, manufacturing and production management in medium and small batch production, reduce product cost and improve production efficiency. The first condition for applying group technology is the similarity of parts, and the additional condition is that there should be a part classification coding system code to classify and code parts. In addition, with the ideal conditions for applying group technology, the purpose of improving production efficiency can be achieved.
2、 The introduction of punching technology is mainly used to make interfaces for panel furniture. Now, the types of punching for panel parts are mainly: dowel holes (used for the installation or positioning of dowels), bolt holes (used for the positioning or screwing in of various bolts and screws), hinge holes (used for the installation of various hinges), and connector holes (used for the installation and linking of various connectors, pins, etc.). Generally, plate type parts need to be punched for multiple purposes at one time. There are many holes, different sizes and different parts. Some holes are drilled on the plane, while others are drilled at the end. The machining size (aperture and pitch) requires high precision, so the drilling should be standardized, serialized and generalized.
3、 The application of group technology in punching process “32mm” system takes side panel as the core. Side panel is the most important skeleton component in furniture, especially in panel furniture, almost all parts of cabinet furniture should be related to side panel. The most important drilling design and processing in the “32mm” system are also concentrated on the side plate. After the location of the holes on the side plate is determined, the relative positions of other components are also determined. Panel furniture enterprises shall carry out standardization, serialization and generalization for punching. The punching process obtains standardized parts from the “32mm” system, that is, standardized hole location, hole spacing, and hole diameter, with similarity. From the concept, basic principles and application conditions of group technology, it can be found that the punching process of panel furniture is very consistent with the concept and theoretical requirements of group technology. Because the punching process of panel furniture products is based on the design concept of “32mm system”, and the size is similar; The materials of most products are similar, and the structures of wood-based panels (mostly particleboard and MDF) and plate components are similar; The connection structure between plate type components is similar to the connection mode with connectors and side plates as the core; The production process of panel furniture products is relatively simple, and the production process is very similar. Therefore, it is appropriate to use group technology to apply the punching process of panel furniture. In addition, panel furniture punching can use highly mechanized production equipment to match the “32mm system”, which also meets the requirements of the technical application conditions of the composite group. If the shape, size and number of holes punched are very similar, the similarity of GT technology can be used for centralized processing. The specific organization and production methods are as follows: 1) Take a certain production cycle as a unit, prepare the parts with the same or similar shape, size and number of holes; 2) Centralized production of parts with similar or identical holes; 3) Adopt through type processing equipment as far as possible; 4) The process differentiation shall be adopted as far as possible to reduce the auxiliary processing time.
4、 Advantages of the application of group technology in the drilling process: 1) reduce the production cycle and reduce WIP; 2) Flexible production, easy to change with the market; 3) Better task assignment, better processing quality, reduce rework and scrap; 4) Improve productivity and reduce costs.
5、 Conclusion Whether the part drilling process organization of a panel furniture product is reasonable or not directly affects the production efficiency and production cost, because it affects the processing time and the time proportion of changing the drill bit and drill row position and adjusting the equipment. The organization is unreasonable, and the auxiliary processing time such as the time for changing the position of the drill bit and drill row and adjusting the equipment accounts for a large proportion of the total processing time, otherwise, the proportion is small. The application of drilling technology in group technology is to reduce these proportions as much as possible according to the similarity, so as to improve the production efficiency and reduce the production cost. The conditions for the feasibility of applying group technology in the punching process of panel furniture enterprises include three aspects: first, the part design is rationalized. Group technology and the “32mm” system must be used in the design work to make the hole positions of panel furniture parts have certain similarity. Second, the furniture manufacturing system has a high degree of automation and needs more flexible furniture punching equipment. The third is that computer technology codes the parts of panel furniture, which can reasonably schedule similar parts for punching. If the above three conditions are met, the group technology can be fully applied in the panel furniture punching process to improve production efficiency and reduce production costs.
