The core component of the tool setter consists of a high-precision switch (probe), a high-hardness, high-wear-resistant carbide tetrahedron (tool probe) and a signal transmission interface (other parts are omitted). The tetrahedral probe is used to make contact with the tool and transmit the force to the high-precision switch through the flexible support rod installed under it; the on/off signal from the switch is transmitted to the numerical control system through the signal transmission interface Tool direction recognition, calculation, compensation, access, etc.

The working principle of the CNC machine tool determines that when the machine tool returns to the mechanical reference point of the respective motion axis, the machine coordinate system is established. Once the reference point is established, the relative motion direction of each axis of the machine coordinate system has a numerical practical significance with respect to the machine zero.

For the machine tool with the tool setting tool, the actual coordinate value of the tool setting sensor from the zero point of the machine coordinate system is a fixed value, which needs to be accurately determined by the parameter setting method to meet the use, otherwise the CNC system will not be able to Data conversion between the machine coordinate system and the fixed coordinates of the tool setting tool. Titanium Machinery is the main product of the company with machine tool spindle, rotary ejector pin, screw screw, shaft machining, CNC lathe machining, shank shank and collet post. When the machine tool establishes "machine coordinate system" and "pair" After the fixed coordinate of the knife is set up (the different tool setting tools should set different fixed coordinate values), the working principle of the tool setting instrument is as follows:

1. After the linear motion axes of the machine tool return to their respective mechanical reference points, the relative positional relationship between the machine coordinate system and the fixed coordinates of the tool setting tool establishes a specific value.

2. Whether the tool is operated by automatic programming control or manual control mode, when moving the tool along a selected axis, the tool tip (or the outer diameter of the power rotary tool) is turned against and touches the tool setting tool. After the corresponding plane of the four-sided probe is triggered by the flexible support rod to trigger the high-precision switch sensor, the switch immediately informs the system to lock the movement of the feed axis. Because the CNC system processes this signal as an advanced signal, the control of the action is extremely fast and accurate.

3. Since the linear feed axis of the CNC machine tool is equipped with a pulse encoder for position loop feedback, the numerical control system also has a counter for storing the actual position of the feed axis. At this point, the system only needs to read the exact position of the axis stop, and the initial tool offset value of the tool tip (or diameter) of the axis tool can be determined by the automatic conversion of the relative relationship between the machine tool and the tool setting tool. . To put it another way, if it is measured in the machine coordinate system, it is equivalent to determining the distance between the machine reference point and the zero point of the machine coordinate system, and the distance between the tool measurement point and the zero point of the machine coordinate system. Actual deviation value.

4. Regardless of the tool wear caused by the cutting of the workpiece or the variation of the tool tip after the hot extension of the screw, the CNC system will automatically measure the new tool offset value with the tool setting operation. The initial tool offset value is compared and calculated, and the error value that needs to be compensated is automatically added to the tool compensation storage area. Of course, if a new tool is replaced and the tool is re-paired, the offset value obtained should be the new initial tool offset value for the tool.