The basic structure of the tool setting tool is shown in Figure 5.29. In Fig. 5.29, the tool holder platform 7 is equipped with a shank holding shaft 2 for mounting the tool under test, as shown in Fig. 5.30. By quickly moving the one-touch button 4 and the fine-tuning knob 5 or 6, the position of the holder gripping shaft 2 on the knife setting tool platform 7 can be adjusted. When the light source emitter 8 emits light and the tool blade is magnified and projected onto the display screen 1, the size of the tool in X (radial dimension) and Z (direction length of the tool shank reference surface to the tool nose) can be measured. The tool setting operation of the drilling tool is as follows: Dioctyl Terephthalate,Pvc Chemical Plasticizer,Dotp Plasticizer,Auxiliary Agent Oil Shandong Langhui Petrochemicals CO.,LTD , https://www.langhuiplasticizer.com
1. The tool to be measured and the handle are connected and installed as one;
2. Insert the shank into the shank clamping shaft 2 on the tool holder and tighten it;
3. Turn on the light emitter 8 to observe the projection of the blade on the display screen 1.
4. By quickly moving the one-touch button 4 and the fine-tuning knob 5 or 6, the projection position of the blade on the display screen 1 can be adjusted so that the tool tip is aligned with the center of the crosshair on the display screen 1, as shown in Figure 5.31;
5. Measured X is 20, ie the tool diameter is φ20mm, this dimension can be used as tool radius compensation;
6. The measured Z is 180.002, that is, the tool length dimension is 180.002 mm, which can be used as tool length compensation;
7. Enter the measured dimension into the tool compensation page of the machining center.
8. After removing the tool under test from the tool setting tool, it can be installed on the machining center. 
Cutting tool method in numerical control machining center
"In the "Numerical Control Process Basis" "Processing Coordinate System Setting", the method of setting the machining coordinate system by tool setting has been introduced. This method is also applicable to the machining center. Because the machining center has multiple tools and can realize automatic tool change, it is necessary to measure the basic dimensions of the used tools and store them in the CNC system so that they can be called in the machining, that is, the tool centering of the machining center. The machining center usually uses an off-board tool setting tool to implement the tool setting.