General steps for NC transformation of ordinary ceramic milling machines
Precision mechanical part design Machinable Ceramic
The most important part of the transformation of the CNC machine tool is the transformation of its vertical and horizontal feed mechanism and the design and transformation of the control system, so that it has a more reasonable structure and a more comprehensive control system, which is convenient for its real application in practical applications. in production.
Feeding movement of alumina ceramic table
Because the plane curve contours such as arcs and cams Machinable Ceramic are mainly processed after the transformation, the three-coordinate two-axis linkage control is realized by microcomputer numerical control. After the stepper motor is decelerated by the first gear, it is dragged by the ball screw nut pair. Due to the large load torque acting on the motor shaft during milling, a high-power stepping motor should be selected. However, it is difficult to drive a high-power stepping motor. The stepping motor has no overload capacity, and the torque drops a lot during high-speed motion, which is easy to lose steps. In order to make the feed servo performance of the modified milling machine better, the DC servo motor is used to drive it.
Ceramic processing Mechanical part structure design
The main shaft rotation movement of the original machine tool is retained, and the lifting movement of the worktable is still manually operated. After the vertical and horizontal feed transformation, it can be used for computer numerical control processing of complex parts, and can be manually operated to complete the processing of simple parts or used before numerical control processing. knife setting work.
Retain the motorized part of the original machine tool for longitudinal feeding, disengage the clutch, remove the handwheel, connect the handwheel shaft with the stepping Machinable Ceramic motor through a pair of gears, and use the microcomputer numerical control system to control the longitudinal feeding movement. During processing, the clutch is disengaged to stop the original motorized feed.
In terms of lateral movement of the worktable, a reduction gear and a stepping motor are installed at the original handwheel installation position, and the lateral feed movement is controlled by a microcomputer numerical control system.
The DC servo motor is used as the driving element, the shaft end of the servo motor is the optical shaft, the gear and the motor shaft, the motor shaft and the transmission shaft adopt the structure of the taper ring keyless connection to eliminate the connector. The feature of this connection is that no keyway is required, and the relative angle of the two connecting pieces can be adjusted arbitrarily. Due to the wedging effect between the cone rings, the inner and outer rings respectively produce radial elastic deformation, and are connected with the sleeve by frictional force to eliminate the matching gap and ensure the neutrality.
How does the design of the machine tool affect ceramic processing?
2022 01/17