Introduction to the classification of tool magazine of CNC machining center
In order to change the tool in the CNC machining center, not only the tool holder can be used, but also the tool library can be used to realize the tool change process. The main power of the tool magazine comes from the transmission power provided by the motor and hydraulic system. The positioning unit is used to ensure that each tool and tool sleeve replaced can rely on the accurate stop.
The CNC machining center is fully enclosed and protected, with centralized processes and continuous processing. The automatic tool change process can be easily realized by using a variety of tools, and the workbench can be automatically changed by using a variety of worktables. At the same time, CNC machining centers also have strong functional support and tend to compound machining. High degree of automation, high precision and large sales volume. Under appropriate circumstances, greater benefits can be brought into play.
According to the specific structure, it can be divided into three types: vertical, horizontal and portal.
The difference between CNC machining center and other CNC machine tools is that CNC machining center has tool magazine and automatic tool change device, while other CNC machine tools do not have tool magazine and automatic tool change device. This is the difference between CNC machining centers and other CNC machine tools, and also the advantage of CNC machining centers. With the automatic tool changer and tool magazine, the workpiece can be clamped at one time without manual operation, and multiple processes can be completed automatically.
How to correct the accuracy of CNC milling machine guide?
When users use CNC milling machine to process production, they will encounter the problem of unstable guide rail accuracy. At this time, they need to repair the guide rail of the CNC milling machine in time. In the process of maintenance, we need to pay attention to three major problems, so as not to damage the guide rail and cause the NC milling machine to fail to operate normally.
First, consider the mechanical strength of the repair layer itself and the actual working environment of the guide rail. For CNC milling machines with different standards, different performance and different use environments, appropriate welding and pasting data, advanced calibration methods and new processes should be selected during maintenance.
Secondly, it is necessary to consider whether the selected correction process has any impact on the accuracy and mechanical performance of the guide rail. If affected by temperature, will it cause deformation of the guide rail, and will it change the mechanical strength and external hardness of the guide rail.
Third, consider the adaptability of the selected calibration process to the guide rail data. For example, the guide rail of cast iron data generally does not need cast iron surfacing. Due to the poor weldability of cast iron, it is easy to produce cracks, pores and other defects, and is not suitable for processing.