A brief analysis of the benefits of using a three-jaw chuck instead of a dial

　　A brief analysis of the new turning method using a three-claw chuck instead of a dial Abstract: A new turning method using a three-claw chuck instead of a dial can improve productivity, reduce costs, and simplify the installation of workpieces. Analyze and discuss the construction technology of the triangular claw plate.

　　During turning, for shaft workpieces that require high coaxiality and need to be turned around, double centers are often used to clamp the workpiece and rotate with the spindle through the dial and clamp. However, this method has relatively low production efficiency, high cost, and the installation operation is more complicated. The construction technology of using a three-claw chuck instead of the dial has certain advantages compared with it.

　　In the era of competition, enterprises must pay attention to improving production efficiency, reducing production costs, and simplifying construction processes. The turning method of using a three-jaw chuck instead of a dial is a relatively advanced turning method. 1 Types and process improvements of three-jaw chucks As the demand for high-precision and high-speed mechanical processing continues to increase, in order to meet the diversification and high-standard mechanical processing requirements pursued by users, major domestic and foreign manufacturers are constantly developing a variety of chuck products. There are two-claw, three-claw, four-claw, six-claw (and a few such as five-claw and eight-claw) series of self-centering chucks, single-action chuck series (for example, two-claw and three-claw can be adjusted independently or linked) series, pipe composite chuck series, power chuck series, etc. According to the power used, it is divided into power chucks using hydraulic, pneumatic (pneumatic) and electric power and manual manual chucks. The claws are also divided into soft claws and hard claws.

　　In the lathe industry, the professional chuck manufacturer Bedford has developed a series of new products, a chuck series with a quick jaw replacement system. This series of quick-change chucks not only has high clamping accuracy, firm and reliable clamping, but also has fast jaw replacement speed, simple, convenient and accurate operation. The use of quick-change chucks can greatly reduce the auxiliary time for lathe chuck adjustment, so that small batch production does not require a lot of auxiliary man-hours and expenses, and the replacement of the three-jaw chuck can be completed within one minute. The repeatability of the jaw installation is up to 0.02mm, and the coaxial grinding time of the chuck jaws can be omitted. In addition, the chuck also uses a new lubrication system to improve the clamping performance of the chuck. The jaw quick-change system of the three-jaw chuck for lathes is very unique and overcomes the defects that often occur in ordinary three-jaw chucks: repeated clamping, constant loosening and clamping, and the use of coolant during the turning process. In addition, the chuck cannot be maintained in time, the chuck cannot be lubricated in time, etc., which will lead to a decrease in the clamping force of the chuck.

　　To overcome these shortcomings, the chuck has an integrated, better-lubricated lubrication system. The special structural shape of the friction surface of the chuck and jaws ensures that the new chuck can reliably transmit higher clamping force. In addition, it also reduces the number of times of lubrication of the chuck, ensuring that the chuck has good clamping performance under long-lasting clamping. Due to the diverse specifications of the new chuck shaft hole bushing, one chuck can be used to meet a variety of different clamping requirements. Provides greater safety and comfort when using the chuck. Because only when the claws are correctly clamped in place, can the chuck wrench be loosened and removed. When the jaws are correctly clamped and positioned, the spring structure in the chuck body will automatically eject the chuck wrench, ensuring that it will not cause the chuck wrench to rotate and start, further ensuring safety. Lathe chucks that can quickly change jaws meet the requirements for highly economical production and processing of turned workpieces.

　　A large number of new technologies and processes are adopted, including some new technologies of CNC machine tools. Its smooth surface is made of reliable materials, and its trapezoidal straight teeth ensure fast and reliable clamping of workpieces when work requirements change. If you want to improve production efficiency, you can also consider transforming the ordinary three-claw watch. Transforming the original three-claw chuck into an electric automatic three-claw chuck is an effective method with relatively small changes.