How to use different kinds of live centers

Live Center is a very important machine tool component in mechanical processing. It has a large demand and a wide range of applications.

Let me introduce you some different types, uses and maintenance matters.

Live Centers, machine tool parts in machining, are available in Dead Center or revolving live center. The lathe is used to center and bear the gravity and cutting force of the workpiece. Front center of lathe The front center can be directly installed in the taper hole of the spindle of the lathe. The front center and the workpiece rotate together without relative movement, so there is no need to quench.

Top features of the revolving live center:

1. Small outer diameter and less interference knives, suitable for high speed and moderate cutting;

2. Regular oil injection can prolong the service life.

3. It has a certain waterproof function, and the whole is easy to dissipate heat;

4. The use of long-pitch needle roller bearings, three-point support arrangement structure rigidity and good stability.

Features of Dead Centers:

1. Front-mounted standard tungsten carbide core;

2. The core material of tungsten carbide is SK2, the hardness reaches 75HRC±2;

3. Both the top and the body need to be precision ground to meet the requirements.

For the processing and production process of the machine tool, it is very common to have some minor defects. Although some minor defects will not cause much impact on the entire production and processing, but if they occur throughout the production process, their work efficiency may appear to be damaged, turning the top For the machine tool, it plays a very important role in the processing of the workpiece, and the rotary center can be rotated, and then the center is inserted to make the machine run more smoothly. At the same time, if the rotary center is used in the machine, it can solve or directly avoid some unnecessary problems.

 There are different types of live centers commonly used in machine tools:

    1. Light duty precision live center

The precision light rotary center is mainly used for machining bushing parts on small lathes. With the help of the center hole, the processed parts get high dimensional accuracy. Due to the high precision and high speed of the high speed rotary center, it is a small precision lathe. An accessory necessary for high-speed cutting.

    2. Medium-duty live center

The medium-duty live center is mainly used for processing bushing parts on general lathes. With the help of the center hole positioning, the processed parts get high dimensional accuracy.

    3. Heavy-duty elastic rotary center

    The heavy-duty elastic turning center is mainly used for machining bushing parts on larger lathes. Due to the large load, it can automatically absorb the thermal deformation of the workpiece and control the thermal stress through automatic adjustment. Therefore, it is most suitable for high-number powerful cutting.

The elastic center is equipped with pressure indicator rings in three colors of red, green and yellow, respectively indicating that the axial pressure is too large, moderate and small, which is convenient for pressure adjustment and monitoring of cutting force status. Round long stroke turning.

    4. Bull Nose Live Centers

    Umbrella-shaped slewing center is mainly used for processing sleeves and pipe parts on lathes, so that the processed parts have high dimensional accuracy and are suitable for powerful cutting.

    5. CNC Inter-changable point live centers

The live center is mainly used for processing various shaft sleeve parts on the lathe, and 5-7 center plugs with different shapes and angles are attached. To expand the scope of use.

    6. Dead Center

The fixed center is mainly used for machining bushing parts on lathe grinders and milling machines.

    7. Precision carbide live center

    Carbide fixed centers are mainly used for machining bushing parts on lathe grinders and milling machines.

    8. With pressure nut top

    The center of the extruded nut is mainly used for machining bushing parts on lathe grinders and milling machines.

9. Half-notched carbide dead center

Carbide semi-deficient centers are mainly used for machining bushing parts on lathe grinders and milling machines.

    10. Top-level dial and top-level dial

The outer turning center is mainly used for lathes, instead of chucks to process shaft parts. It is a high-efficiency non-stop fixture suitable for mass production.

How to operate and maintain the rotary center correctly?

We will inform you in the follow-up news, so stay tuned.