What is a CNC machine tool probe?
CNC machine tool probes can be used in machining centers, milling machines, grinders, lathes and special machine tools. It can be seen that the compatibility of CNC machine tool probes is very strong and can be applied not only to specific machine tools, but also to most current production equipment.
The stylus of the CNC machine tool probe is part of the contact probe. It comes into contact with the part, causing the probe mechanism to shift and generate a trigger signal. The generated signal can be measured. Each touch generates a point defined using X, Y, and Z coordinate values. Features, size, shape and position can then be calculated from these points.
The function of CNC machine tool probe
The CNC machine tool probe is installed on the machine tool workbench. It plays a key role in automatic measurement, recording and calibration, reducing processing procedures and labor force. In addition, it also effectively improves the processing accuracy and efficiency of the machine tool. CNC machine tool probes can be divided into four forms: hard-wired connection, induction, optical and radio according to signal transmission.
The important function of CNC machine tool probes is to help machine tools measure and process corrections. It has the following functions.
1. Automatically identify errors in machine tool processing accuracy and automatically compensate for the accuracy.
2. Replace manual work with automatic segmentation and measurement, automatically adjust the tool coordinate system and automatically fill the tool according to the measurement data.
3. Measure the linear travel curve of the workpiece.
4. Automatically compare measurement results and reports.
The CNC machine tool probe is an auxiliary measurement accessory. Since it is installed on the machine tool workbench, its main function is to measure and calibrate during the machine tool processing, reduce the clamping process, and improve the processing efficiency and quality to a certain extent.
How to choose CNC machine tool probe
The machine tool probe is an important auxiliary equipment in machine tool processing. And it is also very convenient to install the machine tool probe. Therefore, many factories will choose to add side head equipment in order to improve the accuracy of parts. Here we will learn about some of the knowledge you must know when choosing a CNC machine tool side head. For example, CNC machine tool technicians can flexibly select probes based on processing needs. CNC machine tools need to measure and calibrate workpieces during processing, and workpiece detection probes can be selected. For tool inspection, choose a tool inspection probe.
As a key component of the machine tool probe measurement system, the stylus' design and quality have a decisive impact on tactile metrology measurements. If the roundness of the stylus ball is poor, the position is wrong, the deformation of the ball and the thread tolerance are large, these will cause large deformation of the stylus rod. Any error may contribute to measurement uncertainty and may reduce measurement accuracy by up to 10%. Therefore, CNC machine tool technicians can use the stylus as a reference when selecting a probe.
The selection of CNC machine tool side heads also needs to consider factors such as rigidity, accuracy, and processing environment. When the hardness of the parts to be cut is high, rigid measuring needles, such as those made of stainless steel, tungsten carbide and other materials, must be used. In addition, when the requirements for machining accuracy of parts are higher, the measurement accuracy of the needle should also be improved. Usually the shorter the measuring rod on the side head, the larger the diameter of the ball. Also, when the vibration generated by the machine tool during processing is large, it is necessary to choose a needle with strong anti-vibration performance to measure and ensure the accuracy of processing.
