1. Selection of the processed object
Before deciding what to buy, you must first clarify what you are going to process. Generally speaking, parts with the following characteristics are suitable for processing in machining centers: Multi-process intensive workpieces refer to a workpiece that requires many tools for processing. Repetitive production type workpieces are suitable for single-piece small batch production. Small batch refers to 1-100 pieces, each batch is not many, but repeated production is required. In addition, even if the shape and size of the workpieces are different, but they are similar workpieces, it is easy to realize the parts of group processing technology. Complicated shape workpieces such as complex shape parts molds and aviation parts can be processed on the machining center with the help of automatic programming technology.
2. Selection of machine specifications
According to the determined size of the workpiece to be processed, the table size of the required machine tool and the stroke of the three linear coordinate systems are determined accordingly. The size of the worktable should ensure that the workpiece can be smoothly clamped on it, and the processing size must be within the stroke of each coordinate. In addition, the limitations of the tool change space and the interference area of each coordinate must be considered.
3. Selection of machine tool accuracy
According to the machining accuracy requirements of the workpiece, the user selects the machine tool of the corresponding accuracy level, and the mass-produced parts, the actual machining accuracy value may be 1.5-2 times the positioning accuracy. Ordinary machine tools process 8-level precision workpieces in batches, and precision machine tools can process up to 5-6 levels. However, they must have process conditions such as constant temperature. Therefore, precision machine tools are strictly used and expensive.
4. Selection of tool magazine capacity
The manufacturer of the machining center usually sets 2-3 different capacity tool magazines for the same specification of the machine tool. When selecting, the user can determine the required quantity according to the process analysis results of the workpiece to be processed, usually one part is needed The number of tools required in a clamping determines the capacity of the tool magazine, because when changing to another part for processing, the tools need to be rearranged, otherwise the tool management is complicated and error-prone.
5. Machine tool selection functions and accessories
When selecting a machining center (gantry milling machine), in addition to the basic functions and basic parts, there are also functions and accessories that users can choose according to their own requirements, which are called selection functions and selection accessories. With the development of numerical control technology, there are more and more content to choose from, and the proportion of its constituent price in the mainframe is also increasing. Therefore, it is not economical to use a large number of accessories for unclear purposes. The so-called “prepared and safe” The ordering guidelines are essentially wasteful. Therefore, it is necessary to make a comprehensive analysis during the selection and make proper consideration of long-term factors.
The selection function is mainly for the numerical control system. It does not increase the price much, but it brings many convenient functions to the use. It should be properly configured and complete. For the accessories that can be shared by multiple machine tools, one machine can be used for multiple purposes. But it must be considered that the interface is universal.
The milling machine produced by ANTS MACHINE has the advantages of stable performance and strong component reliability. More importantly, the ANTS MACHINE milling machine manufacturer has a strong technical force and experienced after-sales engineer team, which can provide our customers with 24-hour online services. Any technical questions about milling machines will be perfectly answered. When buying a milling machine, look for ANTS MACHINE. For details, please contact contact@antsmachine.com
Tags: milling machine, gantry milling machine, machining center
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