Common tool setting method for CNC CNC gantry machining center
There are several common tool setting methods for CNC CNC gantry machining centers, such as tool setting, automatic tool setting and trial cutting. Because the complete machining process of a workpiece may involve several or even dozens of tools, the trial cutting method is relatively primitive and the accuracy of the tool setting is poor, so it is rarely used. Let's focus on the first two more typical tool setting methods:
1, automatic tool setting method
Automatic tool setting is realized by using the tool detection function of the CNC machining center. This device can automatically and accurately measure the length of each tool in each coordinate direction, and can automatically correct the tool error value. The entire detection and correction process can be performed on the machine tool. Realized on the basis of normal operation. This tool setting method is completely realized by the electronic control device, which eliminates the manual tool setting error, so the tool setting accuracy is higher and the tool setting efficiency is better.
2, tool setting method
The tool setting tool is used for tool setting. Because of its high economy, it is the main method of tool setting in CNC machining centers. There are two types of tool setting: internal tool setting and external tool setting. The tool setting of the external tool setting tool needs to be calibrated outside the machine beforehand, and then the tool can be used after being installed on the machine. The tool setting of the internal tool setting is to directly measure the tool by mounting it on a fixed position on the machine. .
Second, the preventive measures for tool setting errors
As the CNC CNC gantry machining center uses a variety of tools, and the tool sizes are extremely inconsistent, the tool setting method should be selected according to the actual processing conditions, the program instructions should be determined, and the tool setting parameters and tool compensation should be entered. value. Even so, there may be some errors in different tool setting methods, which will affect the accuracy of workpiece processing.
使用 When using the tool setting instrument, tool setting mirror and automatic tool setting, the errors mainly do not originate from the manufacturing, installation and measurement errors of the instrument. In addition, the poor use of the instrument will also cause errors. Therefore, it is necessary to pay attention to the installation and measurement accuracy of the instrument, and it is more important to master the correct method of using the instrument. Only by correct use and operation can the error be minimized. At the same time, the quality and rigidity of the tool and the accuracy of the machine tool are also factors that affect the tool setting error. Therefore, it is important to choose a tool of qualified quality and regularly check the zero drift of the CNC machining center.