Principles for purchasing CNC machine tools

1. Stable reliability

If the selected CNC machine tool can not work stably and reliably, it will be completely meaningless. Therefore, we must try our best to choose famous brand products (including host, control system, and accessories) when purchasing, because these products are technically mature, have a certain production batch, and have been normally used by users.

2. Practicality

The purpose is to solve one or more problems in production. Practicality is to make the selected CNC machine tools finally achieve the predetermined goal to the best extent. It is important not to exchange the more complex CNC machine tools with too many functions and are not practical at a high cost.

3. Economy

With a clear goal and targeted selection of machine tools, the best results can be achieved with a reasonable investment. Economy means that the cost paid by the selected CNC machine tool is the least or the most economical when it meets the processing requirements.

4. Operability

Choose a fully functional and more advanced CNC machine tool. If there is no appropriate person to operate or program, and no skilled repairman to maintain and repair, the best machine tool can not be used well, nor can it play its due role. Therefore, the convenience of operation, programming, and maintenance should be considered when purchasing CNC machine tools. Otherwise, it will not only bring difficulties to the use, maintenance, repair, and other aspects of CNC machine tools but also cause waste of equipment.

5. shop around

Strengthen market research, conduct technical consultation with departments that know about CNC machine tools or users with experience in using CNC machine tools, and try to have a comprehensive understanding of the market conditions of CNC machine tools at home and abroad. Make full use of various exhibitions to select equipment with high quality, low price, and reliable performance, and strive to compare goods with other companies. Mature and stable products must be selected according to the actual needs of the unit.

Characteristics of CNC machining

• High precision and stable quality of machined parts.

The positioning accuracy and repeated positioning accuracy of the CNC lathe are very high, so it is easy to ensure the consistency of the size of a batch of parts. As long as the process design and program are correct and reasonable, combined with careful operation, it can ensure that the parts can obtain high processing accuracy, and it is also convenient to implement quality control in the processing process.

• High productivity.

CNC lathe machining can process multiple machining surfaces in clamping again, and generally, only detect the first piece. Therefore, it can reduce the auxiliary time for many intermediate processes such as scribing, size detection, etc. during ordinary lathe machining in the province. Moreover, because the quality of parts processed by CNC is stable, it brings convenience to subsequent processes, and its comprehensive efficiency is significantly improved.

• High degree of automation, which can reduce the physical labor intensity of the operator.

The CNC machining process is automatically completed according to the input program. The operator only needs to start setting tools, loading and unloading workpieces and changing tools. During the machining process, it is mainly to observe and supervise the operation of the lathe. However, due to the high technical content of CNC lathes, the mental labor of operators is correspondingly improved.

• High maintenance requirements.

CNC lathe is a typical technology-intensive mechatronics product, which requires maintenance personnel not only to understand machinery, but also to understand microelectronic maintenance knowledge, but also to be equipped with better maintenance equipment. It can be developed into a more advanced manufacturing system. The numerical control lathe and its machining technology are the basis of computer-aided manufacturing. The initial investment is large. This is due to the high cost of CNC lathe equipment, the long preparation cycle for the first processing, and the high maintenance cost.

• It is convenient for the development and modification of new products.

CNC machining generally does not require much complex process equipment. Parts with complex shapes and high precision requirements can be processed by compiling machining programs. When the product is modified and the design is changed, the program is changed instead of the tooling. Therefore, CNC machining can greatly shorten the product development cycle, and provide a shortcut for the research and development of new products, product improvement, and modification.

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