CNC Machine Setting and Machining Process

CNC Machine Setting and Machining Process

Before operators can run CNC programs, they must prepare the CNC machine for operation. These preparations include fixing the workpiece directly on the machine, on the mechanical spindle, in machine vision devices or similar workpiece fixing devices, and connecting the required tools (such as drills and mills) to the appropriate CNC machining components. .
Once the machine is fully installed, the operator can run the CNC program.
Mechanical Execution Processing Execution
The CNC program is used as instructions of the CNC machine; sends machine commands that indicate tool actions and movements to the device’s built-in computer, which operates and manipulates the machine tool.
The startup program will ask the CNC machine to start the CNC machining process. The program will guide the machine through the entire process while performing the machine operations necessary to produce custom designed parts or products.
If the online rapid prototyping company invests in the purchase and maintenance of your CNC equipment, you can run the CNC machining process in-house or outsource it to a specialist CNC machining service provider.

CNC machining process flow chart
CNC machining materials

CNC plastic and metal materials

CNC machine settings

What are the advantages and disadvantages of CNC machining?

CNC machining rapid prototyping has realized the automation of small and medium batch processing and improved working conditions. 另外, it has a number of advantages, such as high productivity, stable processing precision, and low product cost.

To further exploit these advantages, CNC prototype machining has been developed towards “process concentration”, 那是, a CNC machine (那是, a machining center) that can complete multi-process processing after clamping machining parts. CNC at the same time.

Rapid prototyping CNC machining selects aircraft parts with complex profiles as processing objects from the very beginning, which is the key to solving the difficulty of ordinary processing methods. The most important CNC machining feature is the perforated tape (or tape) to control the machine tool for automatic processing.

Aircraft, rockets, and engine CNC precision machining parts have different characteristics: Airplanes and rockets have zero characteristics, large components, 複雜的形狀, zero engine, small component sizes, 和高精度.

所以, the CNC machine tools selected by aircraft and rocket manufacturing departments and engine manufacturing departments are different.

In the manufacture of aircraft and rockets, large-scale CNC milling machines with continuous control are mainly used. 相比之下, in the manufacture of motors, continuously controlled CNC machine tools and point-controlled CNC machine tools (CNC drilling machines, CNC boring machines, machining centers, ETC。) 被使用.

Machining of plastic materials

Advantages of CNC machining

Process concentration
CNC machining generally has tool holders and tool magazines that can change tools automatically. The tool change process is carried out automatically under the control of the program. 所以, operations are relatively concentrated. The concentration of processes brings substantial economic benefits:
Reduce the floor space of the machine tool and save the workshop.
Reduce or not intermediate links (such as intermediate inspection of semi-finished products, temporary storage, handling, ETC。), saving time and human resources.
自動化
Manual control of the tool is not necessary during CNC machining processing and the degree of automation is high. 好處是顯而易見的.

Reduced requirements for operators:

An ordinary machine tool senior worker cannot be trained in a short time, and a CNC worker who does not need programming has a short training time (例如, a CNC lathe worker needs a week and will write simple processing programs).

另外, 數控工人在CNC機床上加工的零件比一般工人在傳統機床上加工的零件精度更高, saving time.

降低勞動強度: CNC workers are excluded from processing most of the time during processing, which saves a lot of labor.

Stable product quality: Automating CNC machining processing eliminates worker fatigue, carelessness, estimation, and other human error on ordinary machine tools and improves product consistency.

High processing efficiency: The automatic tool change of the CNC machining prototype makes the processing process compact and improves labor productivity.

High flexibility

Although the traditional general purpose machine tool is flexible, it is inefficient. 相反, the particular conventional machine is very efficient. Still, it has poor adaptability to parts, high rigidity and inadequate flexibility, and it is difficult to adapt to the fierce competition in the market economy.

Products are frequently modified. Whenever the program is changed, new parts can be processed in CNC machining. It can be automated, with good flexibility and high efficiency so that the CNC machine can adapt to market competition.

CNC prototype machining can accurately process various contours, and some shapes cannot be machined on standard machine tools. CNC machining technology is especially suitable for the following occasions:

Parts that cannot be thrown away.
Development of new products.
Processing of emergency parts.