The general idea of the precise tool setting phase is "automatic trial cut → measurement → error compensation". There are two cases of error compensation: the reference tool MDI operation or the step-moving tool holder compensates for the program starting position; the non-reference tool compensates for the tool offset or wear value. To avoid documenting the disorder.
　　1. After the reference tool correction program starting position, separately adjust each non-reference knife offset method
　　The steps for tool setting are as follows:
　　(1) The reference tool is at the program start position after the rough tool setting, and the non-reference tool offset is input to the corresponding position of the tool offset table.
　　(2) Call the O1000 program for machining ΦD2×L2.
　　(3) Measure the diameter and length of the cutting shaft segment, compare it with the program command value, and find the error.
　　(4) Stepping movement or MDI running error value, trimming the starting position of the program.
　　(5) According to the measurement size, dynamically correct the O1000 program underlined command value and save the program, repeat steps (2), (3) until the reference tool program start point is corrected within the accuracy allowable range, and the machine tool that records the modified program start point is recorded. Coordinates and zeros the coordinates.
　　(6) Call the O1001 (1, 4 knife) and O1002 (knife 3) program to test the diameter ΦDi and length Li (i = 1, 4, 3).
　　(7) Stop the error compensation as shown.
　　(8) Repeat steps (6) to (7) until the machining error is within the accuracy range, and the reference tool stops moving at the starting point of the program.
　　2. Each knife is separately adjusted to the starting point position method
　　The principle of the tool setting of this method is that each knife corrects the starting position of the program, thereby indirectly guaranteeing the alignment of the origin of the same program.
　　The steps for tool setting are as follows:
　　(1) The No. 2 reference tool is at the program start position after the rough tool setting, and is corrected to zero after each non-reference tool offset is recorded.
　　(2)Steps (2) to (3) are the same as the same numbered tool setting steps for the first accurate tool setting method.
　　(3) Change the non-reference knife separately, and use the knife offset recorded by the rough tool as the relative coordinate of the starting point of the non-reference knife program. Call the O1000 program to test the diameter ΦDi and the length Li (i=1, 4 respectively). , 3), compared with the program command value, find the difference.
　　(4) Step movement or MDI operation tool holder suspension error compensation, respectively adjust the program starting position of each non-reference knife.
　(5) Repeat steps (3) and (4) until the position of each non-reference tool program start point is within the accuracy allowable range.
　　(6) The relative coordinates of the CRT appear as the new tool offset, and input into the X and Z offset columns of the corresponding tool offset number of the tool offset table. This method is simple and convenient. The corrected tool offset is directly obtained from the relative coordinates of the machine tool displayed by the CRT, which prevents manual calculation errors and has high precision.
　　3. After adjusting the starting position of the reference tool program, modify all non-reference tool offset methods at the same time.
　　This method is basically the same as the first accurate tool setting method. The only difference is that the program called in step (7) is the O1003 program that calls three tools at the same time (O1004 removes the No. 2 knife processing segment to O1003 program) The other steps are the same.