Talk about spring chucks in a simple way ​

Advantages of
 spring chuck 1. The spring chuck is very suitable for processing small diameter workpieces.

2. The clamping time of the spring chuck is very short, which can realize fast loading and unloading.

3. The replacement time of the spring chuck is very short, which can realize the quick replacement of clamps of different sizes.

4. Compared with the chuck, the collet chuck has higher clamping accuracy and better concentricity during U-turn processing.

5. For special-shaped and boring collet chucks, it is more cost-effective and more flexible than chucks.

6. On the machine tool with the inserting spindle structure, the collet chuck can provide the shortest cutting force arm, which has more processing space and processing rigidity than the chuck.

7. The spring chuck is enveloping clamping, which can better protect the surface of the workpiece during clamping and provide the maximum cutting torque. In the case of multi-variety and small-batch processing, the advantage of the spring chuck is the time to replace the clamp. The time for the standard jaw chuck to exchange the jaw is about 15 to 20 minutes. The jaw chuck dedicated for quick replacement also needs at least It takes 1 minute to replace, and the collet chuck that can be used for quick replacement only takes 15 to 20 seconds to replace the chuck . When the processed product changes frequently, the accumulated time is considerable.

In the case of mass processing, it can also save the accumulated time of the clamping process. The time required for the opening and closing of the spring chuck is less than that of the jaw chuck. By reducing the non-cutting time of changing from one workpiece to the next, Reduce the overall cumulative time of the entire processing process.

The main reason for the shorter opening and closing time of the spring chuck is its shorter opening and closing stroke; of course, the corresponding spring chuck is more limited in the size range of the workpiece compared with the jaw chuck.

When using a turning center equipped with a second spindle to process a large number of parts, the use of a spring chuck can greatly improve the processing efficiency, and can complete all the processing surfaces of the parts to be processed in one clamping. By matching the bar machine and the blanking device, the automatic loading and unloading process can be realized, and finally unmanned production and continuous processing can be realized. In such an application, for a single workpiece, the saved non-cutting time may be very small, but in the entire production process, the time saved for each workpiece is multiplied by the number of workpieces, and the accumulated time saved is It is very impressive. In practical applications, if the size of the workpiece is more consistent, the processing speed using the collet chuck will be faster. If the size of the workpiece changes greatly, it may be more appropriate to use a jaw chuck. For processing materials such as hot-rolled steel, forgings and molded parts, standard jaw chucks are often more suitable, because parts of this type of material are prone to large dimensional changes caused by thermal deformation. The cold-rolled material parts have better dimensional consistency, so it is suitable for clamping by spring chucks. In addition, parts of non-circular blanks can also be clamped by spring chucks, and chucks designed for non-circular cross-sections can be provided to clamp molded bars that are shaped into the shape required by customers.

After talking about the advantages, it's time to talk about classification. . . (Of course, there are many shortcomings of spring chucks, so I won’t be wordy here, if I have a chance, I will give you a detailed list)