Those diameter dimensions with φ are the x values in the program.
If we establish a coordinate system at the center of rotation of the right end face of the workpiece,
Then, the z value on the left side of the length dimension 6 is Z-6.0,
The z value of the leftmost end face of the workpiece is Z-29.3,
The farther to the right, the greater the z value, the greater the diameter in the x direction and the greater the x value.
2. The first step is to think about the process, only the process is determined.
We can program according to the process, which is the soul of NC program.
When you reach a certain level, you will understand that programming is very simple (except macro programs), and the process is the most important.
This part needs multiple processes to manufacture, so when you ask programming questions, be sure to explain your process.
In other words, the program in that step will not be compiled, and this step is the place to locate and clamp.
What is the blank like and which surfaces to process.
3. when the task was given to you, it was a drawing? No craftsmanship? Craftsmanship is telling you how to do every step.
And the size and material of the material, I'll give it to you.
That is to say, what to do, will the drawing be completely completed in the end, or do not need to do φ 2 hole, or something else,
Tell me all the known conditions for you. And how big the batch is.
Extended data:
Numerical control is the abbreviation of numerical control, and numerical control technology is a method to control mechanical movement and machining process by using digital information.
The early numerical control system is called hard numerical control, which consists of hardware circuits. After1970s, hardware circuit components were gradually replaced by special computers, which were called computer numerical control systems. Usually, dedicated computers and interface circuits are used to control the actions of multiple numerical control devices. So now the numerical control is generally CNC (Computer Numerical Control), and the concept of NC is rarely used again.
NC lathe feed machining path refers to the path that the lathe tool passes through the tool alignment point (or the fixed origin of the machine tool) until it returns to this point and ends the machining program, including cutting machining path and non-cutting idle travel path such as tool cutting and cutting.
The feed route of finishing is basically along the outline of its parts in turn. Therefore, the key to determine the feed route is to determine the feed route of rough machining and idle stroke.
Reference: CNC- Baidu Encyclopedia