A rivet is a nail-shaped object used to connect two parts (or members) with a through hole and a cap at one end. In riveting, the riveted parts are joined by self-deformation or interference. There are many kinds of rivets, and they are not in any form. Commonly used are R type rivets, fan rivets, pull core rivets (hit core rivets), tree rivets, half round head, flat head, half hollow rivets, solid rivets, countersunk head rivets, pull core rivets, hollow rivets, which are usually connected by their own deformation. Generally less than 8 mm with cold riveting, larger than this size with hot riveting. But there are exceptions, such as the nameplates on some locks, which are riveted using the interference between the rivet and the lock hole. U-Shaped Cotter Pin,Split Rivet,Locating The Split Pin,Galvanized Spring Pin Handan Changlan fasteners manufacturing ,.Co ltd , https://www.hdchanglanjgj.com
Group rotary drilling fixture
Fig. 1 and Fig. 2 are drilling process diagrams of the upper and lower connecting plates of the automobile beam and the workpieces of the left and right supporting plate parts. In the previous machining, the workpiece was positioned at the right and outer square faces, and the workpiece was clamped with a movable caliper at the neutral position. This type of workpiece has a wide range of L dimensions, different hole positions, diameters and numbers, and the structure of the rotary clamp is complicated and the manufacturing cost is high. In order to reduce the number of special drill fixtures, shorten the production preparation cycle, improve work efficiency, and speed up the trial production of new products, we are in the workpiece