There are several possible configurations for four-axial machines, but most of them fall under the category of "vertical machining," in which the spindle rotates around the Z axis. The fixture is positioned in the A-axis, and the workpiece can rotate with it. Four sides of the part can be machined using just one fixture arrangement.
Known as mill-turn lathes or multitasking machines, these incredibly sophisticated twin-spindle, dual-turret, automatic tool-changing CNC lathes are unquestionably the most effective means to create a wide range of intricate machined parts.
The CNC controller coordinates with a number of motors and drive elements that move and control the axes in order to carry out the preprogrammed actions. A lathe machine makes accurate movements at every turn. The final part, component, or product is therefore exceedingly exact.
Turn on the milling machine, slowly move the end mill in the X-axis direction toward the part, stop when you observe a small puff of metal shavings, and then press X to zero the X-axis.
Then, the positive cutting tool motion directions are toward the end of the spindle, up, and to the right (X-axis) (Z-axis). The positive cutting tool motion directions for a N/C lathe are typically away from the right (Z-axis) headstock and away from the spindle axis (X-axis).
M-code manages a variety of operations, which are often non-geometry machine operations. Examples include changing the pallet and starting and stopping the spindle spinning. The particular machine may do some of these tasks differently.
The optional shower coolant is started via M07. Both the regular coolant and the shower coolant are stopped by M09. Before a tool change or a pallet change, the optional shower coolant automatically shuts off. If it was ON prior to the tool change command, it starts up again after the tool change.
A machine's capacity to move a tool or a part in five separate axes at once is known as 5-axis machining. A 5-axis CNC machining tool can spin two additional axes, A and B, which gives the cutting tool a multidirectional approach. Basic machining uses three fundamental axes, X, Y, and Z.
In HMCs, metal is removed from the workpiece using cutting tools on a spindle that moves along a horizontal work plane. VMCs are utilized extensively today. Even if a shop has purchased a 5-axis machine, the shop floor still most likely has a 3-axis vertical.
The coordinate system of the CNC machine must have a starting point for each axis. This origin point is known as the program zero point for CNC purposes (also called work zero, part zero, or program origin). The point at which all dimensions start is typically chosen to be the program zero point.