Collets Used To Hold The Stud Or Pin In The Stud Gun During The Weld Process

B Collects Used To Hold The Stud Or Pin In The Stud Gun During The Weld Process

In many industries such as hardware, automobile, shipbuilding, aircraft and so on, a large number of welding studs (or screws) are needed to be welded to sheet metal parts. In the welding process, the welding gun has a general vulnerable part, stud welding chuck, used to hold the stud and conduct welding current. In the welding process, because the welding current is very large, high working temperature, stud welding chuck is very easy to damage. Now commonly used stud welding chuck connection part of the threaded structure, that is, stud welding chuck and welding gun connected place is generally threaded connection. Stud welding chuck needs to conduct electricity, generally made of copper, lack of elasticity, in the chuck holding nails are generally used in the place of rubber 0 ring to improve the clamping force of the chuck. In the case of threaded connection, the welding chuck is easy to ignite between the connection threads, so that the connection threads are damaged. Because the O-ring is rubber products, it is easy to age at high temperature, so that the clamping force of the welding chuck decreases, which greatly reduces the service life of the chuck.

A stud welding chuck comprises a hollow chuck body, the rear of the chuck body is the installation part, the front of the chuck body clamping part, clamping part along the axial opening elastic slot, clamping part has a groove around the groove, in the groove is equipped with an elastic clamping element, the elastic clamping element is a metal elastic clamping element.

High temperature in welding

"B" collets are the most common collet used on CD stud welding equipment.

The environment is not easy to aging, can maintain the clamping force for a long time, greatly improve the stud welding chuck

Service life, reduce the production cost.

A stud welding chuck assembly comprises a chuck seat, a chuck and a locking nut for installing a chuck on a chuck seat; The locking nut is provided with a big head end and a small head end, and the inner diameter of the big head end is greater than the inner diameter of the small head end, and a first contact inclined plane is arranged between the big head end and the small head end; One end of the chuck near the chuck seat is provided with a connection convex ring along the circumferential protrusion, connecting the convex ring away from the chuck seat is provided with a second contact inclined plane; The connecting convex ring part is located in the big end of the lock nut, and the second contact bevel is connected with the first contact bevel. After tightening the lock nut, the outer side wall of the screw joint is connected with the big end of the lock nut, the inner side wall is connected with the connecting convex ring, and the first contact bevel of the lock nut is connected with the second contact bevel. In this way, the locking nut is closely connected with the chuck seat and chuck, and the current of more than 1000A can pass through smoothly, to avoid loosening between the three, resulting in the increase of contact resistance, contact surface flame and burn the relevant parts.