Gantry machining center (gantry milling machine) how to choose?

1. Selection of objects to be processed

Before determining the purchase object, we must first clarify the object to be processed. In general, parts with the following characteristics are suitable for machining in the machining center: multi-process intensive workpiece refers to the need to use many tools to process on a workpiece. Repetitive production of the workpiece is suitable for processing a single piece of small batch production. Small batch refers to 1-100 pieces, each batch is not large, but it needs to be repeated. In addition, even if the workpiece shape and size are different, but it is similar to the workpiece, it is easy to realize the parts of the group processing technology. Complex shape parts, such as mold and aviation parts, can be processed on the vertical machining center with the help of automatic programming technology.

2. Selection of machine tool specifications for vertical machining center

According to the size of the workpiece determined, the table size of the required machine tool and the stroke of the three linear coordinate systems are determined accordingly. The size of the table should ensure that the workpiece can be successfully mounted on the workpiece, and the processing size must be within each coordinate stroke, in addition, the tool space and the limits of each coordinate interference area should be considered.

3. Selection of machine tool accuracy

According to the processing accuracy requirements of the workpiece, the user chooses the corresponding precision level of the machine tool, the mass production of the parts, the actual precision value of the machining may be 1.5-2 times the positioning accuracy. Ordinary machine tools batch processing 8-level precision workpiece, precision machine tools processing accuracy up to 5-6 levels, but to have constant temperature and other process conditions, so precision machine tools are strict in use and high in price.

4. Selection of tool storage capacity

Machining center manufacturers for the same specification of machine tools, usually set 2-3 different capacity tool library, the user at the time of selection, you can determine the required amount according to the process analysis results of the workpiece to be machined, usually need a part in a clamping required number of tools to determine the capacity of the tool library, because in another part processing, need to rearrange the tool, Otherwise tool management is complex and error-prone.

5. Selection of machine tool 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 choose according to their own requirements, which are called select functions and select accessories. With the development of numerical control technology, there are more and more options for content, and the proportion of its composition price in the host is also increasing, so it is not economical to use a large number of accessories without a clear purpose, and the so-called "prepared" ordering guiding ideology is essentially a waste. Therefore, the selection should be comprehensively analyzed and long-term factors should be properly considered.

The selection function is mainly for the numerical control system, for the kind of price increase is not much, but for the use of many convenient functions, it should be properly configured, and for the common accessories of multiple machine tools, you can consider a multi-purpose machine, but you must consider that the interface is universal.