Grooving processing is a relatively complicated processing procedure. To do a good job of grooving processing, you must first understand the type of groove. The common types of grooves include outer circular grooves, inner hole grooves and end grooves. Although the processing is more difficult, the reasonable operation of cnc machining center 640 can effectively complete the grooving processing. Before that, we need to have a clear understanding of the type of groove processing.
What is grooving? In fact, in all tool cutting, regardless of metal and non-metal tool materials, regardless of the processing method of workpiece rotation or tool rotation, as long as the groove-shaped tool is used to cut grooves on the workpiece, it can be cut. Slot processing. External groove machining is the easiest. As shown in the figure below, the machining form of external groove cutting is convenient for easy chip removal under the action of gravity and coolant. In addition, the processing of the outer groove is visible to the operator in the whole process, and the operator can directly and relatively easily check the processing quality. But some potential obstacles in workpiece design or clamping must also be avoided.
For internal hole grooving, the best processing effect will be obtained when the position of the tool tip is slightly higher than the center line. The machining end face groove is more special, the tool must be able to move in the axial direction, and the flank radius of the tool must match the radius being machined. The best processing effect is when the tip position of the end face grooving tool is slightly higher than the center line.
In any grooving processing, the model design and technical conditions of the machining center are also basic elements that need to be considered. The main performance requirements of the machining center include: sufficient processing power, a high-speed spindle can ensure that the tool runs in the correct speed range, and no speed drop or jitter; high enough rigidity to complete the required The cutting process will not cause chattering to cause damage to the surface finish of the workpiece; it has a sufficiently high coolant pressure and flow rate to help the water outlet of the spindle center of the chip removal machining center to meet this processing requirement.
When grooving in large quantities, the choice of tools has to be taken seriously. Chenghai Machine Tool recommends the use of forming tools. Because the disadvantage of non-blade forming tools is that if one of the teeth breaks or wears faster than the others, the entire tool must be replaced, which greatly reduces the processing efficiency and affects the processing accuracy. The forming tool can cut out all or most of the groove shape through a single grooving process, which can free up the tool position and shorten the processing cycle time.
In fact, the programming and processing process of grooving processing is not difficult. The complicated part is the irregular shape of the workpiece and the continuous debugging that follows. The difference in processing methods applied to the reasonable selection of tools can efficiently complete the grooving processing.
