The Knowledge of Selecting A Hand Tri Clamp

In order to facilitate the using of tri clamp, now we will introduce some requirements of major general technologies as following:

The hand self—connecting tri clamp for lathe can be divided as tri clamp with short taper adaptor and tri clamp with short cylindrical adaptor according to the interconnection system with spindle nose of lathe. The tri clamp with short taper adaptor is generally connected through transitional disk, and the tri clamp with short cylindrical adaptor can be connected directly with spindle nose of lathe. The connection methods of tri clamp with short cylindrical adaptor can be also classified as A1,A2,C and D.

Becasue A2 can be connected with screw thread from outer parts of spindle nose of lathe, its strength is better than A1. However, limited by the internal structure of tri clamp, a small number of A2 can be adopted. Thus, many people will choose A1 which is able to be connected with the inner screw thread from spindle nose of lathe.

The C is connected with the spindle nose of the lathe and is fastened by clevis bolt. It belongs to a fast changing tri clamp and can be quickly loaded and unloaded. .

The D is connected with the spindle nose of the lathe by the bar, and the cam is tightly pressed. It belongs to another kind of fast changing tri clamp.

The bore—hole of tri clamp with short cylindrical adaptor is designed on the tri clamp’s cover, and the screws of inside and outside assemble together with the body of tri clamp to form a closed structure, so it has high centering precision, good rigidity and short overhanging. At present, the pindle noses of foreign lathes are widely applied short cylindrical adaptor, so it is the only indispensable functional part for the selection of lathe. The domestic ones are gradually using short cylindrical adaptor based on the international standard. Even though the actual prices between tri clamp with short cylindrical adaptor and tri clamp with short taper adaptor are varied for 25%, the actual price difference is less than 10% when subtracting transitional cost. what's more, the value in use of tri clamp with short cylindrical adasptor is well above tri clamp with short taper adaptor. The structure of claws from tri clamp with short taper adaptor and tri clamp with short cylindrical adaptor can be divided as solid claw and disengaging claw. The solid claw is the one that is with a basic claw and a top claw, among which the base is connected with the six angle screw in the cylinder head, and it can be adjusted to be used as a positive claw or an anti claw.