How to choose CNC machining center?

The first time to buy CNC machining center products, often do not know how to choose CNC machining center, do not know where to start, to buy what type of machining center is more appropriate? We should start from the following points.

1. Clear the processing object, and then choose CNC machining center equipment

Before determining the purchase of objects, we must first make clear the objects for processing. Generally speaking, parts with the following characteristics are suitable for processing in the machining center:

Multi-process intensive work piece. The use of many tools on a piece of work.

Locate tedious artifacts. For example, there is a certain position of the hole distance precision requirements of porous processing, using the characteristics of high positioning accuracy of the machine tool, it is very convenient to implement.

Reproduction-type work pieces. Suitable for processing single small batch production. Small batch refers to the number of 1-100 pieces, each batch is not large, but the need for repeated production. In addition, even if the shape and size of the workpiece are different, but they are similar parts, easy to achieve group machining (GT) process parts.

Complex shape parts. With the help of automatic programming technology, various special-shaped parts can be processed on the machining center.

Box and board parts. In the horizontal high-speed machining center on the use of rotary table, the box parts for multifaceted processing, such as the main shaft box, pump body, valve body, internal combustion engine cylinder body, etc. If the top surface is also a clamping processing, you can choose a pentahedral processing center. Vertical small machining center is suitable for processing box cover cylinder head, plane CAM, etc. CNC machining center for processing large box, plate parts, such as diesel locomotive cylinder block, machining center column, bed, printing wall plate machine, etc.

2. CNC machining center specification selection

According to the size of the wire cutting workpiece, the size of the working table of the machine tool and the travel of three linear coordinate systems are determined accordingly. The size of the worktable should ensure that the workpiece can be successfully mounted on it, and the processing size must be within the travel of each coordinate. In addition, the limitation of the space for tool change and the interference area of each coordinate should be considered.

3. CNC machining center accuracy selection

Users can according to the requirements of the workpiece processing accuracy, choose the corresponding precision level of machine tools, mass production of parts, the actual processing of the accuracy of the numerical value may be 1.5-2 times the positioning accuracy. Ordinary machine tools batch processing 8 level precision workpiece, precision machine tools processing accuracy can reach 5-6 level, but to have constant temperature and other technological conditions, so precision machine tools use strict, high price.

4. CNC machining center tool storage capacity selection

CNC machining center manufacturers for the same specifications of the machine tool, usually set 2-3 different capacity tool library, such as horizontal machining center tool library capacity of 30, 60, 80, vertical machining center has 16, 24, 32 capacity of the tool library. When the user is selected, the required number can be determined according to the process analysis results of the processed workpiece. Usually, the number of tools needed to determine the capacity of the tool library is required by the need for a part in a clamping, because when changing another part to process, the need to rearrange the tool, otherwise the tool management is complex and error-prone.

5. CNC machining center selection function and the selection of accessories

When choosing CNC machining center machine tool, in addition to the basic functions and basic parts, and provide users according to their own requirements to choose functions and accessories, called the choice of function, choice of accessories (optional accessories). The selection function is mainly for the numerical control system, for the price increase is not much, but for the use of many convenient functions, should be properly configured a complete point, and can be a number of machine tools common accessories, you can consider a machine multi-purpose, but must consider the interface is universal.