CNC tools are widely used in the mold manufacturing industry, so what are the types and selection skills of CNC tools? The following editor briefly introduces:
CNC tools can be divided into five categories according to the form of the workpiece processing surface. Tools for processing various external surfaces, including turning tools, planers, milling cutters, external surface broaches and files, etc.; hole processing tools, including drills, reamers, boring tools, reamers and internal surface broaches, etc.; thread processing Tools, including taps, dies, automatic opening and closing thread cutting heads, thread turning tools and thread milling cutters, etc.; gear processing tools, including hobs, gear shaping cutters, gear shaving cutters, bevel gear processing tools, etc.; cutting tools, including inserts Toothed circular saw blades, band saws, bow saws, cut-off turning tools and saw blade milling cutters, etc. In addition, there are combination knives.
CNC tools can be divided into three categories according to the cutting motion mode and the corresponding blade shape. General-purpose cutting tools, such as turning tools, planing cutters, milling cutters (excluding formed turning tools, shaped planing cutters and formed milling cutters), boring cutters, drills, reamers, reamers and saws, etc.; forming tools, cutting edges of such tools It has the same or nearly the same shape as the section of the workpiece to be processed, such as forming turning tools, forming planers, forming milling cutters, broaches, conical reamers and various thread processing tools, etc.; tools are used to process gear tooth surfaces or similar Workpieces such as hobs, gear shapers, shaving cutters, bevel gear planers and bevel gear milling discs, etc.
The selection of CNC tools is carried out in the state of human-computer interaction of CNC programming. The tool and tool holder should be correctly selected according to the processing capacity of the machine tool, the performance of the workpiece material, the processing procedure, the cutting amount and other related factors.
What are the preset and inspection methods of CNC tools?
There are strict requirements for the pre-adjustment and inspection of CNC tools. Here is a brief introduction for your reference:
When installing CNC tools, special attention should be paid to cleaning. Whether the boring tool is rough machining or finishing machining, cleanliness must be paid attention to in all aspects of installation and assembly. The assembly of the tool handle and the machine tool, the replacement of the blade, etc. must be wiped clean before installation or assembly, and must not be sloppy.
The CNC tool is pre-adjusted, and its dimensional accuracy is in good condition and meets the requirements. Indexable boring tools, except for single-edged boring tools, generally do not use the method of manual trial cutting, so the pre-adjustment before processing is very important. The pre-adjusted size is accurate, and it should be adjusted to the middle and lower limits of the tolerance, and the temperature factor should be considered for correction and compensation. Tool presetting can be performed on a presetter, on-machine tool setter or other measuring instruments.
After the CNC tool is installed, perform a dynamic runout inspection. Dynamic runout inspection is a comprehensive indicator that reflects the accuracy of the machine tool spindle, the tool and the connection between the tool and the machine tool. If the accuracy exceeds 1/2 or 2/3 of the accuracy required by the processed hole, it cannot be processed, and the reason needs to be found out.
Post time: Mar-18-2016
