1. Measure and compensate the tool offset value in five directions of ±X, ±Z and Y axis
Measuring and compensating the tool offset value in five directions can effectively eliminate the error and inefficiency caused by manual tool setting. Regardless of the cutting tool (outer circle, end face, thread, grooving, boring or milling, drilling power tool on the turning center), all tool points or tools involved in cutting are performed during workpiece turning or milling The axis line must be adjusted or compensated so that it is exactly at the same theoretical point or axis of the workpiece coordinate system. For the dynamic rotary tool, in addition to measuring and compensating the offset value in the tool length direction, it is also necessary to measure and compensate the offset value in the tool diameter direction (the offset value of the two radii of the tool at the axis line boundary) ). Otherwise the machine cannot machine a workpiece of the correct size. On machines that do not have a tool setting tool, the offset value of each tool is measured, calculated, and compensated (manual tool setting) for each tool after careful trial cutting. Laborious, and accidentally scrapped the workpiece. This work will be repeated when the tool is changed. Therefore, the tool is one of the longest working hours of the machine tool.
The machine tool using the tool setting tool automatically sets the offset value of the tool to the workpiece coordinate system after the tool is set, thus automatically establishing the workpiece coordinate system. In this case, the machining program does not need to use the "G50 command" to establish the workpiece coordinate system.
2. Automatic monitoring, alarm and compensation of tool wear or damage during processing
It is very troublesome to complete the compensation of the wear value on the machine without the tool setting tool. It is necessary to stop the machine for multiple times to manually measure the size of the workpiece, and manually modify the tool compensation parameters for the obtained wear value. This problem is much simpler after installing the tool setter, especially when installing HPPA or HPMA models. In the former, as long as the tool is worn according to the wear law of the tool, after stopping a certain number of workpieces and stopping the machine tool, the tool setting process can be performed again by the tool setting tool; the latter can be executed after setting the number of machining cycles in the program. Once the tool is automatically set, the tool compensation can be completed.
For tool breakage alarm or tool wear to a certain extent after replacement, it is based on the allowable wear amount of the tool, set a “threshold value”. Once the error detected by the tool setter exceeds the threshold value, the tool is considered to be damaged or exceeds the allowable value. The wear value of the machine automatically stops the machine and then forces the tool to be replaced.
3. Compensation for the variation of the tool offset value caused by the thermal deformation of the machine tool
During the working cycle, the various heat generated by the machine tool causes the deformation of the machine tool, especially the thermal elongation of the lead screw, to cause a change in the position of the tool tip. As a result, the dimensional accuracy of the machined workpiece is affected. By installing a tool setting tool on the machine, the above problems can be solved. It is nothing more than changing the position of the tool tip caused by thermal deformation as the wear value of the tool. This tool offset value can be measured by the tool setting tool.