Analytical plate furniture punching process
As we all know, the punching process is an indispensable process in the production process of panel furniture. Whether the punching process organization of a panel furniture product is reasonable or not directly affects production efficiency and production cost. The group technology is to classify various products, components and parts of the enterprise according to certain similarity criteria, and based on these groups, organize all aspects of production, so as to realize the design and manufacture of multi-variety, medium and small batch products. Rationalization of management. It is a new technology that can improve the production efficiency of medium and small batch products.
Group technology
The basic theory guiding the group of technical disciplines is the principle of similarity. This principle is applied in the mechanical manufacturing industry. The components and parts of various products are grouped according to certain similarity criteria according to the similarity of specifications, shapes, manufacturing processes, equipment used, tooling, etc. Manufacturing is carried out to expand the product batch. Its purpose is to achieve product variety, medium and small batch production of product design, process design, processing and manufacturing management and other areas of optimization, reduce product costs and improve production efficiency.
The first condition for applying group technology is the similarity of the parts. The additional condition is that there is a part classification code system code, which is used to classify and encode the parts, and the ideal conditions for applying group technology can improve the production efficiency. purpose.
Punching process
Punching is mainly to make interface for panel furniture. Now the types of perforated parts of panel parts are: round boring (for installation or positioning of round boring), bolt holes (for positioning or screwing of various bolts and screws) , Hinged holes (for all types of hinges), connector holes (for all types of connectors, bolt installation and links, etc.).
Since the general plate type parts need to be punched, and they are used for a variety of purposes at one time, the number of holes is large, the sizes are different, and the parts are different. Some are perforated in the plane, some are perforated at the end, and the processing size (aperture and pitch) is required to be high. Therefore, the punching should be standardized, serialized and generalized.
Application of group technology in punching process
1. Punching process and "32mm" system
The “32mm†system is centered on the side panel. The side panel is the most important skeleton component in the furniture. In particular, almost all the components in the cabinet furniture in the panel furniture have to be related to the side panel. The most important drilling design and machining in the "32mm" system is also concentrated on the side panel. After the hole position on the side panel is determined, the relative positions of the other components are determined.
Panel furniture companies should standardize, serialize and generalize punching. The punching process obtained standardized parts from the "32mm" system, ie with standardized hole positions, hole distances, and apertures, with similarities. From the concept, basic principles and application conditions of group technology, it can be found that the punching process of panel furniture is in line with the concept and theoretical requirements of group technology. Because the punching process of panel furniture products is based on the "32mm system" design, the dimensions are similar; most of the products are similar in material, all of which are wood-based panels (mostly particleboard and medium density fiberboard), and the structural components of the panel components themselves are similar; The connection structure with the connection of the connecting piece and the side plate as the core, the connection structure between the plate components is similar; the production process of the plate furniture product is relatively simple, and the production process is also very similar. Therefore, the use of group technology to apply the punching process of panel furniture is very suitable. Moreover, the plate furniture can be punched with a high degree of mechanized production equipment to match the "32mm system", which is in line with the requirements of the group of technical applications.
2. If the shape, size and number of punched holes are very similar, the similarity of GT technology can be used for centralized processing. The specific tissue production methods are as follows:
First, in a production cycle, the shape, size, and number of parts that need to be punched are the same or similar;
Second, concentrate the production of parts with similar or identical holes;
Third, use pass-through processing equipment whenever possible;
Fourth, the form of process differentiation is used as much as possible to reduce the auxiliary processing time.
Related reading: detailed explanation of the process of panel furniture
3. Example analysis
Assume that the parts of a series of furniture A, B, and C are punched on the same drill bed. In the furniture A, it is necessary to process two parts A1 and A2 (different sizes), the parts B1 and B2 are required in the furniture B, and the composition (dimensions are different), and the parts to be processed by the furniture C are C1.
If the furniture is used as the unit, the punching is performed according to A1, A2, B1, B2 and C1 respectively, the production efficiency is the lowest, and at least 5 times, the control of the position support between the drill bits and the different drill rows on the same drill string is required. The corresponding adjustment equipment and the first piece of confirmation time is the longest.
According to the idea of ​​group technology, the punching size of each similar part was analyzed. It was found that the punching sizes of A1, B1 and C1 were consistent, while the punching sizes of A2 and B2 were consistent. At this time, the parts A1, B1, and C1 are punched as a group, and the A2 and B2 are punched as a group, and the production efficiency is the highest, because it is only necessary to re-adjust the position of the drill bit and the drill row and adjust the device once, saving A large number of adjustments to the position of the drill bit and the drill string, the time to adjust the equipment and the first piece of confirmation time.
4. The application of group technology in the punching process has the following advantages:
First, reduce production cycles and reduce work-in-progress;
Second, production flexibility is easy to change with the market;
Third, better assignment tasks, better processing quality, reduced rework, and reduced scrap;
Fourth, increase productivity and reduce costs.
Conclusion
Whether the punching process of a piece of panel furniture product is reasonable or not directly affects production efficiency and production cost because it affects the processing time and the time ratio of changing the position of the drill bit and the drill string and adjusting the equipment. The organization is unreasonable, and the auxiliary processing time, such as the position of the drill bit and the drill row and the time of adjusting the equipment, is a large proportion of the total processing time, and vice versa. The grouping technology application punching process is to minimize these ratios according to the similarity, so that the production efficiency is improved and the production cost is lowered.
The feasibility of applying group technology in the punching process of panel furniture enterprises includes three aspects: First, the part design is rationalized, and the group work technology must be adopted in the design work and the "32mm" system must be combined to make the hole position of the plate type furniture parts have certain Similar similarity. Second, the furniture manufacturing system has a high degree of automation, and it is necessary to have a flexible furniture punching device. The third is the computer technology to encode the plate-type furniture parts, which can reasonably dispatch similar parts to focus the punching process. To meet the above three conditions, the group technology can be applied in the plate furniture punching process to improve production efficiency and reduce production cost.
(Original title: Application of group technology in the punching process of panel furniture)
Dining Table,Grey Dining Table Set,Rectangle Table,Long Dining Table
shandong Changheng Wood Co.,Ltd , https://www.changhengwood.com