Exploring the reciprocating motion mode of CNC grinding machine

CNC grinding machines can achieve high-precision, high-quality, and high-efficiency grinding under computer control. It can save a lot of specialized process equipment compared to specialized grinding machines, has strong flexible manufacturing capabilities, and achieves good economic benefits. Compared with ordinary grinders, it can eliminate many human interference factors in the long process of complex machining, and has good consistency and interchangeability of machining parts, with high machining efficiency.

In the reciprocating motion function of a CNC grinder, the defined axis moves back and forth between two points at the programmed feed rate or calculated feed rate (rotational feed rate), which is called the "reciprocating axis" and these two points are called the "reversing points". Multiple shafts can simultaneously perform reciprocating motion together.

Reciprocal motion can be distinguished by reversing conditions and feed motion:

1. Modal asynchronous reciprocating motion: During reciprocating motion, other axes can be interpolated arbitrarily. The reciprocating axis can serve as the input axis for dynamic coordinate conversion or the active axis on the gantry axis/master-slave axis;

2. Accompanied by continuous feed reciprocating motion: Multiple axes can simultaneously perform feed motion together. However, there is no interpolation correlation between feed motion and reciprocating motion;

3. The reciprocating motion can be accompanied by feed motion at two reversal points or at a certain reversal point. The feed motion can also start in advance from a position point that is at a distance specified by the program from the reversing point;

4. Perform spark free polishing (referred to as polishing) after reciprocating motion;

5. The reciprocating motion can start and end at a designated position.

The motion mode on the reversing point of the CNC grinder:

1. Failure to enter the tolerance zone for accurate or rough stopping;

2. Arrived at the location where the program was written or;

3. Reached the position where the program was written and the pause time ended;

4. Triggered by external signals provided by PLC.