The embodiment of precision automatic devices in the field of CNC machining
With the continuous development of science and technology, digital precision machining has become an important technology in the manufacturing industry. In this digital age, CNC machine tools, as representatives of digital precision machining, continue to evolve through technological innovation and are widely used in various fields.
The reason why CNC machining is precise is that there are various precision automatic devices running behind it. They are like the "brain" and "hands and feet" of CNC machine tools, making the processing process more efficient, more accurate and more intelligent. Let's take a look at what aspects of precision automatic devices are reflected in CNC machining and how they play a role in machining? The following will focus on four types of precision automatic devices.
⏩ Servo drive system: performing cutting tasks
CNC machine tools can accurately cut and grind materials, which is inseparable from the control of servo drive systems. The servo drive system is like the commander of the machine tool. It uses high-precision motors and encoders to accurately control the various axes of the machine tool, such as the movement of the X-axis, Y-axis, and Z-axis. During multi-axis machining, the movement of the A-axis, B-axis, and C-axis can also be controlled.
When the machine tool receives the processing instruction, the servo system will execute the action quickly and accurately to ensure that the tool is in the correct position, at the correct speed and force for processing. In addition, the specific parameters of the processing need to be set in advance. As long as the parameters are set correctly, the servo system will execute accurately.
The precise control capability of this precision automatic device enables CNC machine tools to handle micron-level processing tasks, such as cutting blade parts with complex curvatures on aerospace parts or processing high-precision holes in precision instruments. These are all where the servo drive system plays a role.
⏩ Automatic measurement and detection: real-time inspection of part quality
During the processing process, how to ensure that each part meets the standard? Timely detection of errors can avoid a lot of losses. At this time, we must rely on automatic measurement and detection systems. This system can detect problems in time during the processing process, rather than knowing where the defects of the parts are after the parts are processed.
The measurement and detection principle of this system is as follows: through sensors, cameras and other equipment, the size, surface roughness and even tool wear of the parts in real time are monitored.
For example, when processing a part, the system will automatically scan the shape of the part with a laser. If the size deviation exceeds the preset range, it will immediately send an alarm to the machine tool control system to adjust the processing parameters or stop processing.
Some high-end systems can also predict the tool life and replace the tool in advance to avoid product scrapping due to tool damage.
After you understand the operating principle of the machine tool automatic measurement and detection system, do you also think that precision automatic devices play an important role in the field of CNC machining?
⏩ Automatic tool exchange system: a powerful assistant for process transformation
In traditional processing, workers need to manually change tools according to different processes, which is time-consuming and error-prone. The automatic tool exchange system (ATC) of CNC machine tools can realize automatic tool change between different processes. It is equipped with a "tool magazine" that stores various types of tools, such as drills, milling cutters, boring tools, turning tools, etc. When a tool change is required, the robot will automatically take out the appropriate tool from the tool magazine and accurately install it on the spindle. The whole process may only take a few seconds.
Below I will give you an example to help you understand better. For example, to process an automobile engine part, you may need to drill first, then mill, and finally tap. The ATC system can quickly switch different tools and complete the entire processing process in one go without stopping the machine to manually change tools. This not only improves the processing speed, but also reduces the downtime caused by tool change.
⏩ Automatic material handling and loading and unloading: realizing intelligent transportation of raw materials and finished products
The last step of CNC processing often requires the raw materials to be fed into the machine tool, the finished products to be taken out and transported to the next process. At this time, the automatic material handling system can play its role.
This system usually includes equipment such as manipulators, conveyor belts, and automatic warehouses, just like there is a robot behind to transport items. For example, on a production line of precision aerospace parts, the raw materials will be automatically transported to the machine tool processing position. After waiting for the processing to be completed, the manipulator will take out the finished product, put it on the testing equipment for testing, and finally send it to the warehouse. The whole process requires almost no manual operation except for the detection step.
This automation not only improves production efficiency, but also reduces the safety risks that may be caused by manual handling.
⏩ Summary: Precision automatic devices make CNC machining smarter
Through the above four precision automatic devices, CNC machine tools have achieved full process automation from motion control, quality inspection, tool management to logistics handling. They not only achieve machining accuracy at the micron level, but also greatly improve production efficiency and safety.
For example, in automobile manufacturing, precision automatic devices can ensure the consistency of the size of each component, thereby improving the assembly quality of the entire vehicle; in the field of electronic products, they can quickly process precise circuit boards and small parts to meet the needs of thin and light electronic products.
Well, through this article you have fully understood why CNC machining technology is so precise. You will not regret choosing CNC machining technology for your parts.
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