What is the use of CNC machine tool safety doors, and what types of safety doors can be divided into?

Today, products made with CNC machines can be found in almost every industry. Using CNC machine tools to manufacture products is usually much safer than manual machine tools, because most CNC machine tools have safety doors installed, and operators can work behind transparent safety doors to ensure the personal safety of operators. This article will introduce the relevant content with the safety door of CNC machine tool.

A CNC machine tool is a machine tool that cuts materials according to the processing program on the controller. Simply put, a CNC system is installed on a manual machine tool. The numerical control system will logically process the code or other symbolic instruction programs, decode the code or other symbolic instruction programs, and then make the machine tool operate and process materials, and can manufacture raw materials such as wood, plastic and metal into finished products.

In the machining process of CNC machine tools, the safety door is a common protective device that looks irrelevant to the machining process. When changing the machining process, the safety door needs to be opened and closed. So, what is the use of CNC machine tool safety door? The following will briefly introduce the role of CNC machine tool safety doors and the types of CNC machine tool safety doors.
The role of CNC machine tool safety door

The safety door is the main part of the safety operation, modification and update of the CNC machine tool safety system, and it is also an indispensable auxiliary configuration. To put it bluntly, the safety door plays a more important role, that is, the protective function. During the processing of CNC machine tools, there are some production processes that may endanger the personal safety of the operator, and even the CNC machine tool itself will cause certain damage to the operator. Dangerous, the CNC machine tool and the operator can be separated through the safety door to ensure the operator’s operation safety.

When machining workpieces, CNC lathes usually have some safety problems, such as tool damage, crashes, operational errors, workpiece separation, and abnormal control, which will cause safety accidents to operators or equipment. Therefore, most CNC lathes will be equipped with safety doors, and the safety doors will be closed during the machining process, so that the operator will not directly operate the CNC machine tools. Therefore, the probability of personal accident will be relatively small.

At present, the safety door of CNC machine tools is usually switched manually or automatically. If it is a manual switch, the safety door can be opened and closed through a button; if it is an automatic switch, the safety door will be opened and closed through the corresponding control unit. Manual switches are a waste of manpower and will reduce work efficiency. Although automatic switching can improve switching efficiency, it cannot be used in a power-off state, which has certain limitations.

What are the types of CNC machine tool safety doors?

According to the door-machine interlocking form, CNC lathe safety doors can be divided into automatic safety doors, manual safety doors that can be automatically locked, and manual safety doors without automatic locking.

Fully automatic safety doors are mostly used in some machining centers with higher configuration, and are safety doors with higher protection levels now. The opening and closing actions of the safety door are automatically controlled by the numerical control system. After the controller receives the required action, it will output an action signal, and the oil cylinder or air cylinder will automatically realize the opening and closing of the safety door. The manufacturing cost of this type of safety door is relatively high, and it also has high requirements on the stability of machine tool devices and various sensors.

Manual safety gate with automatic locking. Most machining centers now use this type of safety door. The opening and closing action of the safety door is manually completed by the operator. After detecting the in-position signal of the safety door switch, the controller will lock or unlock the safety door. In the logic control of the numerical control system, automatic processing can only be carried out after the safety door is closed and self-locking is completed. The actions of locking and unlocking can be controlled by a designated switch or by a numerical control system.

Manual safety door without self-locking. Most machine tool retrofits and economical CNC machines use this type of safety door. The safety door is equipped with a detection switch that switches in place, usually a proximity switch is used to provide feedback on the state of the safety door and provide input signals to the alarm information displayed by the machine tool, and the locking and unlocking actions will be achieved through mechanical door locks or buckles. Manually completed, the controller only processes the in-position signal of the safety door switch, and achieves the purpose of protection through internal calculation.

The above is the relevant content of CNC machine tool safety door. By browsing the above articles, you can understand that the safety door of CNC machine tools is a safety protection device for the operator, and it is also an indispensable auxiliary configuration. The manual safety gates, etc., play a very important role in the safety of the staff. Follow Jiezhong Robot to learn more about the knowledge and application of CNC machine tool safety doors.


Post time: Jun-18-2022