How to improve the accuracy of CNC tools, details determine success or failure. It is necessary to pay attention to every detail of tool manufacturing, which also plays a decisive role in the success or failure of tool manufacturing quality. Not many users don’t care about the quality of their machining tools. From the selection of CNC tool raw materials, pre-treatment and blade shape details such as sharpening, heat treatment and edge passivation of the main parameters of the tool, the choice of tool coating, the treatment of the tool before and after coating, how to detect, package and transport, etc. , need to pay attention to every detail.

Improving the precision of slender rod tools has always been a difficulty in tool manufacturing. The main reason is that the effective part of this type of tool is relatively long and the cutting edge of the tool is far away from the clamping part during manufacturing. Because the cutting edge is too long from the clamping part, and the tool clamping chuck has a certain clamping accuracy, the radial circular runout at the cutting edge of the tool may have reached 0.005mm~0.0mm before grinding. In the cutting process, the grinding force is large, which causes the elastic deformation of the tool to be large. Many problems will occur during the processing, such as the tool geometry is asymmetrical, the tool outer diameter, edge parameters, and shape errors do not meet the requirements. In serious cases, it may even cause The knife was broken.

The influence of machine tool accuracy on tool accuracy When manufacturing any tool, the accuracy of the machine tool is the key to determining the tool accuracy, and slender rod-shaped tools are no exception. The CNC tool grinder produced has five axes in total, namely three coordinate axes x, y, z and two rotation axes a and c (p axis). The accuracy of each axis is very high. The positioning accuracy of the three coordinate axes x, y, and z can reach 0.00mm, and the positioning accuracy of the two rotation axes a and c can reach 0.00. The two grinding wheel spindles of the machine tool are arranged longitudinally. When processing different parts of the tool, not only different grinding wheels can be selected, but also different grinding wheel spindles can be selected. When the grinding wheel spindle needs to be replaced, it can be automatically replaced under program control. The repeatability of the two axes is very high, which can fully meet the accuracy requirements when processing slender rod-shaped tools.

All parameters of carbide insert tools are determined by the relative motion of the grinding wheel and the tool. Therefore, the diameter of the grinding wheel, the angle at which the grinding wheel directly participates in cutting, the flange length of the grinding wheel shaft, the wear of the grinding wheel, and the particle size of the grinding wheel all affect the tool. accuracy.