CNC lathe tool compensation

The tool compensation function of CNC lathe includes the tool position compensation and the tool arc radius compensation. In the processing program specified by the T function, the first two XX in TXXXX are the tool number, and the last two XX are the tool compensation number, such as T0202. If the tool compensation number is 00, it means that the tool repair is canceled.

(1) The tool position compensates for the change in the tool position caused by tool wear or reinstallation, Dongguan large CNC machinery processing plant, Guangzhou boring processing plant, Shenzhen large frame welding, grinding processing plant, large gantry milling machine processing, large CNC gantry milling machine processing, large computer gong machinery processing plant, boring processing plant,q345 seamless pipe factory,q235 steel plate factory, aluminum magnesium and manganese plate processing,a3 cold tie plate processing,45 steel processing machinery processing plant, After the establishment and execution of the tool position compensation in the Dongguan machinery processing plant, the processing program does not need to be re-prepared. The method is to measure the position of each tool and input into the specified memory, the program executes the tool compensation instruction, the actual position of the tool replaces the original position.

If there is no tool compensation, the tool is moved from 0 point to 1 point, the corresponding program segment is N60G00C45X93T0200, if the tool compensation is X=+3, Z=+4, and stored in the corresponding compensation memory, after the execution of the tool compensation, the tool will be moved from 0 point to 2 points, instead of 1 point. The corresponding program segment is N60G00X45Z93T0202.

(2) Tool arc radius compensation When preparing CNC lathe processing program, the turning tool tip is regarded as a point (imaginary tool tip P point), but in fact, in order to improve the service life of the tool and reduce the surface roughness of the workpiece, the turning tool tip is ground into a small radius of the arc (tool tip AB arc), as shown in Figure 3, which will inevitably produce the shape error of the workpiece. On the other hand, the position of the tip arc and the shape of the turning tool will also have an impact on the workpiece processing, and these can be solved by using the tool arc radius compensation. The shape and position parameters of the turning tool are called the tool point orientation, as shown in Figure 4, and are represented by parameters 0 ~ 9, P point is the theoretical tool point.

(3) Tool compensation parameters Each tool compensation number corresponds to the tool position compensation (X and Z values) machinery processing plant, Dongguan large CNC machinery processing plant, Guangzhou boring processing plant, Shenzhen large frame welding, grinding processing plant, large gantry milling machine processing, large CNC gantry milling machine processing, large computer gong machinery processing plant, boring processing plant,q345 seamless pipe factory,q235 steel plate factory, aluminum magnesium and manganese plate processing,a3 cold tie plate processing,45 steel processing Dongguan Machinery, The four parameters of the tool arc radius compensation (R and T values) are input to the corresponding memory before processing, as shown in FIG. 5 on the CRT. In the process of automatic execution, the numerical control system automatically corrects the position error of the tool and automatically compensates the radius of the tool tip arc according to the values of X, Z, R and T in the memory.