Today's Milling machine axis and turning centers have high fast speeds. To operate any machine effectively, a machinist needs to understand the importance of cutting speed and feed. The Milling machine axis is not set to an appropriate speed and feeds the workpiece, which will waste a lot of time. The article mainly introduces the relevant knowledge of Milling machine axis feed. In addition, the article also introduces how to program the feed rate in degrees per minute.
Milling machine axis is the abbreviation of computer network digital economic control machine tool, which is an automatic machine tool controlled by a program. You can use digital information to manage and control the movement of the machine tool, as well as the machining and production processes.
General CNC machining machine tools refer to the processing of precision engineering machinery products, CNC machining lathes, milling machines and machining centers. How to reasonably set the center, speed and feed rate of CNC machining?
Milling machine axis feed
Milling machine axis The feed rate is the relative speed that the tool advances along the workpiece, or is defined as the distance the tool travels when the spindle rotates one circle. It uses control codes or other symbolic instructions to process the program. Use a computer to convert it into code so that the machine can run in accordance with the prescribed operation. Through turning, milling cutters and other tools, the blank is processed into semi-finished or finished products. At present, processing centers have been widely used in various processing fields.
Milling machine axis feed
The spindle speed, feed rate and cutting speed of the machining center are mainly determined by the tool. For different quantities of the same material, the parameters of the processing tools are different. However, the tool will provide parameters to be set at the time of purchase. Individual machining center machining tools will provide different materials and machining parameters, such as greater feed speed, cutting and speed.
The development of cutting motion speed can be calculated according to related formulas, cutting speed=(processing diameter/3.14/speed)*1000. For example, if you want to machine different holes with a diameter of 50mm, the maximum actual cutting speed of the tool is 150m/min.
Make reasonable settings according to the size of the tool, the hardness of the processing technology material, the performance of the machine tool, and the precision of mold production and processing. The tool is large, the material is hard, the accuracy is low, and the speed is slow. Specific issues should be explored based on work and work experience.
Programmable feedrate in degrees per minute
The feed rate of all Milling machine axis can be specified in minutes (inches or millimeters per minute). For many machines, the feed rate can also be specified per revolution. This makes the description of the feed rate easier. However, programmers often feel the headache is that the feed rate of most rotating shafts must be specified in degrees per minute.
It is troublesome to determine the degree of feed rate per minute. The feed rate depends on the offset of the rotation axis, the position of the cutting tool relative to the center of rotation, and the required feed rate per minute. The actual value of the feedrate word (in degrees per minute) may cause misunderstanding. For movements that require a large rotation axis offset and the tool is close to the center of rotation, the value of the feedrate word may exceed the value of 300 degrees per minute.
Milling machine axis feed
If the Milling machine axis to be processed has a custom macro B (or any version of parameter programming), you can create an arithmetic function in the control to determine the feed rate in degrees per minute. This function will accept the required feedrate per minute, the position of the tool relative to the center of rotation, the angular deviation, and the input (parameters) in the form of variables stored in the calculated feedrate per minute. This function will calculate the feed rate in degrees per minute based on the input data and store the result in the specified variable. This variable will be used to specify the feedrate in the rotary axis command.
