How to set the tool path of a CNC lathe?

The key to setting the tool path of a CNC lathe lies in understanding the planning principles of the tool movement path and the specific parameter Settings.

The basic principle of ‌ is to ensure processing accuracy and surface quality while improving efficiency. Specifically, it is necessary to ensure the accuracy and surface roughness of the workpiece to be processed, reduce the idle travel time, simplify the workload of numerical calculation and programming, and determine the number of cycles of processing based on the shape, stiffness, machining allowance, and stiffness of the machine tool system of the workpiece. In addition, it is also crucial to rationally design the entry and exit directions of the cutting tool.

 Specific setup steps ‌ usually include:

1. blank setting ‌ : Set the radius and length according to the blank size.

2. Processing area selection ‌ : Connect the areas to be processed in series.

3. Parameter Settings ‌ : On the parameters page, select the tool and set parameters such as rotational speed, feed rate, and cutting depth. For example, you can set the four-cut direction allowance, and select the automatic calculation for the right cut in and out.

4. tool correction ‌ : Set the tool correction overlap amount, correction type, axial layer-by-layer cutting, equidistant step optimization, etc.

5. generate trajectory ‌ : After completing the above Settings, the tool path can be generated.

Tool path example ‌ :

turning end face ‌ : A (tool change point) -B (entry point) -C (cutting path) -Op (exit point) -D (retraction point).

turning the outer circle ‌ : A (tool change point) -B (entry point) -C-D-E (cutting path) -E (exit point) -F (retraction point).

 notes ‌ :

The unidirectional approach positioning method is adopted to avoid positioning errors caused by reverse clearance in the transmission system.

Set the tool changing point and the tool starting point reasonably to minimize the idle travel.

According to the processing requirements, choose the climb milling or reverse milling method reasonably.

By following the above steps and principles, you can effectively set the tool path of the CNC lathe.