Tell me how to classify the control trajectory according to the movement of high-speed CNC drilling machine.

The primary reason that affects the dynamic accuracy of high-speed CNC drilling machine is the rigidity of the machine tool, vibration resistance and other special factors. Rigidity refers to the strength of the machine tool's ability to resist deformation under the effect of external force. The stronger the rigidity of the machine tool, the higher the dynamic accuracy. The rigidity of the machine tool itself depends on the characteristics of the machine tool equipment itself. The stiffness between the components and the hardness of the processed data and the cross section of the processed data are related to some elements. Also, the oscillations present on the machine tool equipment are generally divided into two types: forced oscillations and self-excited oscillations. Self-excited oscillation is not under the influence of any external force elements, machine tool equipment in the normal operation of the processing process of a kind of oscillation. The strength of the vibration resistance of the machine tool is related to the rigidity of the machine tool and the quality of the data. Different relative displacements of various parts of the machine tool due to different degrees of thermal expansion of internal components.
There are many varieties and specifications of high-speed CNC drilling machines, and the classification methods are also different. Generally, it can be classified according to the control trajectory of the movement according to the function and structure:
⑴ Point control only requires the accurate positioning of the moving parts of the control machine from one point to another point, and the requirements for the motion trajectory between points are not strict. No processing is carried out during the movement, and the movement between the coordinate axes is irrelevant. In order to achieve both fast and accurate positioning, the movement of displacement between two points generally moves quickly first, and then approaches the positioning point slowly to ensure positioning accuracy, which is the movement trajectory of point control.
The main ones with point control function are CNC drilling machine, CNC milling machine, CNC punching machine, etc. With the development of numerical control technology and the reduction of the price of numerical control system, the numerical control system used simply for point control is rare.
⑵ Linear control is also called parallel control numerical control drilling machine. Its characteristic is that in addition to the accurate positioning between the control point and the point, it also controls the moving speed and route (trajectory) between the two related points. However, its moving route only moves parallel to the coordinate axis, that is to say, there is only one coordinate axis controlled at the same time. In the process of shifting, the tool can cut at the specified feed speed, and generally only rectangular and stepped parts can be processed.
It has a linear control function of the main relatively simple CNC lathe, CNC milling machine, CNC grinding machine and so on. This numerical control system is also called linear control numerical control system. Similarly, it is rare to use it purely for linear control.
The contour control is also called continuous control CNC drilling machine, its control is characterized by the ability to two or more than two motion coordinates of the displacement and speed control at the same time.
In order to meet the requirements that the relative motion trajectory of the tool along the contour of the workpiece conforms to the machining contour of the workpiece, the displacement control and speed control of each coordinate movement must be accurately coordinated according to the specified proportional relationship.