How to check the accuracy of the engraving machine
The high precision of the engraving machine is ultimately guaranteed by the precision of the engraving machine. The precision of the CNC engraving machine includes geometric precision and cutting precision. On the other hand, the performance of the CNC engraving machine and the normal function of the CNC function will directly affect the normal use of the engraving machine. Therefore, the accuracy and performance of the wood engraving machine are tested on the initial CNC engraving and maintenance of the machine tool. The recovery of technical indicators is very important, how to check the accuracy of the engraving machine.
There are many factors to measure the performance of the engraving machine, not only the overall configuration of the machine, but also the assembly precision. These are mainly reflected in the axis perpendicularity, flatness, positioning accuracy, weight and negative positioning accuracy of the equipment. The perpendicularity mainly affects the dimensional accuracy of the workpiece. The typical performance of the XY axis with large verticality is that the diagonal of the long release is not equal. The typical vertical performance of the Z axis and the XY plane is that when the plane is milled with a flat knife. The surface is not flat;
The plane machining accuracy has such a simple method to try, use the programming software to make a larger rectangle, then make an inscribed circle inside the rectangle, engrave it with the machine, and measure the diagonal of the rectangle with the ruler. If there is no problem with the plane accuracy of the machine, the accuracy of the machine will be unqualified. Secondly, the precision of the embossing of the engraving machine will be tested. The embossing software will be used as a tool path, and the line spacing will be set smaller and layered. After doing a good job, look at whether the four sides of the machine are smooth, and whether the embossed layer links are smooth. If the speculation is jagged and not smooth, the machine's X axis has precision error. If the embossing has faults and steps, then the machine's Z axis has precision error. .
Geometric accuracy test, also known as static accuracy test, is a comprehensive reflection of the integrated geometry error of the key components of the machine head after assembly. The inspection requirements of woodworking engraving machines will be higher. Commonly used testing tools include precision level, precision square box square, flat ruler, flat tube, dry meter, micrometer and high precision spindle. The accuracy of the inspection tool must be one level higher than the geometric accuracy measured.
The positioning accuracy of the engraving machine is to measure the positional accuracy of each coordinate of the machine tool under the control of the numerical control system. According to the measured positioning accuracy resin, the precision that can be achieved after the part is processed can be judged.
