How to select gantry machining center (gantry milling machine)
Hangzhou Datian CNC Machine Tool Co., Ltd
1. Selection of the machined object
Before determining the purchase object, the object to be processed must be defined first. Generally speaking, parts with the following characteristics are suitable for machining in machining centers: multi process intensive workpieces refer to workpieces that need to be machined with many tools. Repetitive production type workpieces are suitable for single piece small batch production. Small batch refers to 1-100 pieces. The quantity of each batch is small, but it needs repeated production. In addition, even though the shape and size of the workpieces are different, they are similar workpieces, which are easy to achieve group processing. Parts with complex shapes, such as molds and aviation parts, can be processed on the machining center with the help of automatic programming technology.
2. Selection of machine tool specifications
According to the determined size of the workpiece to be processed, the workbench size of the required machine tool and the stroke of the three linear coordinate systems are determined accordingly. WeChat of metal processing has good content and deserves attention. The size of the worktable shall ensure that the workpiece can be smoothly clamped on it, and the processing size must be within the travel of each coordinate. In addition, the limitation of tool change space and 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 with the corresponding accuracy level. For the parts produced in batch, the actual machining accuracy may be 1.5-2 times of the positioning accuracy. Ordinary machine tools can process 8-level precision workpieces in batches, and precision machine tools can process 5-6 levels of precision workpieces, but there must be constant temperature and other technological conditions, so precision machine tools are strictly used and expensive.
4. Selection of tool magazine capacity
The manufacturer of the machining center usually sets up 2-3 tool libraries with different capacities for the machine tools of the same specification. When selecting, the user can determine the required quantity according to the process analysis results of the workpiece to be processed. Usually, the capacity of the tool library is determined by the number of tools required for one part in one clamping. Because when changing another part for processing, it is necessary to rearrange the tools, otherwise the tool management is complex and error prone.
5. Selection of machine tool 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 select according to their own requirements, called selection functions and selection accessories. WeChat of metal processing has good content and deserves attention. With the development of numerical control technology, there are more and more options available, and the proportion of its component price in the host is also growing. Therefore, it is not economical to select a large number of accessories without a clear purpose. The so-called "prepare for trouble" ordering guideline is in essence a waste. Therefore, a comprehensive analysis should be carried out when selecting, and long-term factors should be properly considered.
The function selection is mainly for NC system. For that kind of NC system, the price increase is not much, but the functions that bring convenience to use should be properly configured. For 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.
Hangzhou Datian CNC Machine Tool Co., Ltd., specializing in the production of gantry machining centers
In fact, it is difficult to solve the problem of whether a three-axis CNC machining center is better or a four-axis machining center is better. There is only a problem that is not suitable for machining some kinds of parts. Basically, all three-axis machining centers can process the parts that can be processed by a four axis machining center, while the parts that can be processed by a four axis machining center may not be processed by a three-axis machining center.
Datan CNC's main products or services: high-speed and high-precision machining center, five-axis Simultaneously controllable machining center, functional complex machining center, flexible manufacturing units, Hardware, software and service providers for R&D and production of high-end and mid-to-high-end CNC machine tools.
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