There is a simple, fast and accurate way to align the center of the spindle of the milling machine and the boring machine with a certain side of the part being machined.
A lever dial (or dial gauge) is mounted on the spindle of the milling machine or the boring machine with the drill chuck and the stem of the watch is generally on the spindle axis. Then move the contact to the side of the workpiece (the workpiece is clamped), gently lean against the side, and see a small reading on the watch, such as 0.02 ~ 0.10mm, gently rotate the spindle in the forward and reverse directions, you can see the table The pointer swings from the lowest point to the forward and reverse directions, and is set to the zero position of the lever table when the pointer is at the minimum yaw value. Then, the lever table is separated from the side of the workpiece, the main shaft is rotated by 180°, and a measuring angle iron is pressed against the surface of the workpiece just detected, and the table is placed close to the inner side of the angle iron, and the minimum yaw value of the pointer is read by the above method. If there is a difference from the first intermediate reading, the workpiece or spindle can be moved by half the difference value and detected once by the above method until 180° is equal to the middle reading in both directions. At this time, the center of the milling machine and the spindle of the boring machine is aligned with the side of the workpiece to be machined. Milling machine series http://ShengJiangTaiXiChuang/ 