There are many ways to manufacture high-precision machinery, such as heat treatment methods. Parts refer to independent products that cannot be disassembled in industrial equipment. They are most of the components of equipment and the basic control unit in the manufacturing process of industrial equipment. The whole process of its production and processing generally does not need to install the production process.
CNC lathe processing When CNC lathes are producing and processing high-precision mechanical parts in large quantities, especially pay attention to the precision of precision machining, so what difficulties should we pay attention to when manufacturing high-precision machining?
1. The processing accuracy of a large number of parts is poor, generally because the feed dynamics of each axis are not adjusted properly according to the error during installation and adjustment, or because the gears of each axis of the machining center have changed after use and damage. It can be solved by readjusting and modifying the gap compensation amount. When the dynamic tracking error is too large and an alarm is issued, check whether the transmission ratio of the AC servo motor is too high. The position detection electronics are of good quality. Position Feedback Cable RF Connector is good quality touch. Check whether the corresponding analog input and output latches and gain resistors are of good quality. Whether the corresponding AC servo motor drives the device is normal.
2. The machining accuracy is not good due to the overshoot of the machining center during exercise. It may be that the acceleration and deceleration time is too short, and the speed change time can be appropriately increased. It may also be that the connection between the AC servo motor and the ball screw is loose or the bending stiffness is poor, and the gain value of the position loop can be appropriately reduced.
3. The concentricity error when the two axes are linked. Axial deformation of the circle: This type of deformation may be caused by improper adjustment of industrial equipment. The accuracy level of the shaft is not good, or the ball screw clearance compensation is not scientific, which will lead to concentricity error when passing the quadrant. Oblique ellipse error: At this moment, first check the position error of each axis. If the deviation is too large, adjust the gain value of the position loop to clear it. Then check whether the transfer plate of the resolver or induction synchronizer is adjusted properly, and then check whether the gap between the transmission gear pair is very large and whether the gap compensation is appropriate.