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Improve the efficiency of NC lathe cutting and slotting

1. How can CNC lathes improve cutting efficiency?

CNC lathe cutting methods are as follows:

1. Straight forward method.

The cutting knife feeds and cuts perpendicular to the axis of the workpiece. This method has high efficiency, but it has higher requirements on the sharpening and clamping of the lathe and the cutting knife, otherwise the knife head will be easily broken.

2. The left and right borrowing knife method.

In the case of insufficient rigidity of the tool, workpiece and lathe, the workpiece can be cut off by borrowing the knife. This method means that the cutting knife moves back and forth repeatedly in the axial direction, and then feeds radially on both sides until the workpiece is cut.

3. Anti-cut method.

The anti-cutting method refers to the reversal of the workpiece and the reverse clamping of the turning tool. This cutting method is suitable for cutting workpieces with larger diameters. Its advantages are: since the cutting force acting on the workpiece is consistent with the gravity direction of the spindle (downward), the spindle is not easy to jump up and down, and it is relatively stable when cutting the workpiece, and the chips are discharged downward, and will not be blocked in the cutting groove. Chip removal is smooth.

2. How to improve the processing efficiency of grooving with CNC lathe?

When CNC lathes process parts, cutting off the workpiece is the most indispensable process, and the groove on the workpiece is also the most common. The efficiency of cutting and grooving is inseparable from the rigidity of the machine tool. The rigidity of the CNC lathe spindle and the rigidity of the tool are the main reasons that affect the vibration of the workpiece. Also, the cutting method in cutting and grooving is also the most critical.

Next, let's analyze how to improve the efficiency of cutting and grooving workpiece processing from the cutting method.

1. CNC lathe grooving.

1) Common methods of grooving, the common methods of grooving on the surface of the workpiece include outer grooves, inner grooves and end surface grooves.

2) Selection of grooving cutter. Generally, high-speed steel grooving tools are used for grooving.

3) The method of car groove. For rectangular grooves with low turning precision and narrow width, you can use a grooving knife with a knife width equal to the groove width, and use the straight-forward method to turn out at one time.

Rectangular grooves that require high turning precision are generally turned in two turns. When turning a wider groove, it can be cut by multiple straight-forward methods, and a certain amount of finishing allowance is left on both sides of the groove, and then it is finished according to the depth and width of the groove to the size. Turning smaller arc grooves is generally turned with forming turning tools; turning larger arc grooves can be turned with both hands and checked and trimmed with a sample.

Turning smaller trapezoidal grooves is generally completed with forming turning tools; turning larger trapezoidal grooves is usually done with straight grooves first, and then completed with trapezoidal knife straight-forward method or left-right cutting method.

4) Inspection and measurement of rectangular slots. Grooves with low precision requirements are generally measured with steel rulers and calipers. Grooves with high precision requirements can be inspected and measured with micrometers, templates, plug gauges and vernier calipers.

2. CNC lathe cutting. To cut off, use a cutting knife. The shape of the cutting knife is similar to that of a grooving knife, but it is easy to break because of its narrow and long blade. Cutting knives include high-speed steel cutting knives, carbide cutting knives, elastic cutting knives, reverse cutting knives and other types.

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