Among traditional broaching devices for inside holes and surface profiles present in the world market at the time being, the Adjustable broaching head is a great novelty. Like all the others BR broacheing heads, it can be installed on both traditional and CNC machine tools.
The main feature of the adjustable broaching head is its possibility of using broaching tools by length between L=18 to L=30 mm (to BR-G8A version) and between L=25 to L=60 mm (to BR-G12A version).
The max depth working L1, (see fig.2), by broaches, increases MAX to L1=55mm (to the G12A) and MAX to L1=26mm (to the G8A).
The operation of replacing, by type of the broaches, to has the different depths, is simple and quickly. It will does it by adjustment screws (2 on one side, and 1 on the other side, see pag.13) also use a centesimal comparator supplied with the “0” pin, (see fig.3). The “0” working by the broaching tools will adjust according to the length of the broach. The same operation will be by broaching tools (Matrix), for external polygons.
To obtain the best working by the broaching tools, it is important to know that, with the same material and section of the broach, when will goes up the length also increases the load by the tip, for this reason, it is necessary to reduce the feed rate and spindle speed.
The BR-G12A broaching head mounts G12A metric broaches and GP12A inch broaches.
