Broaching machine

A continuous-action broaching machine for machining the external surfaces of workpieces, comprising:

• a framework;
• a multi-position rotatable work table supported by said framework;
• a plurality of vices adapted to clamp workpieces therein, mounted on said work table defining the multi-positions thereof;
• a transport means mounted adjacent to said multi-position work table;
• a plurality of broaching tools mounted on said transport means to be continuously carried past said multi-position work table;
• a workpiece loading means mounted on said framework adjacent to said multi-position work table for loading workpieces into said vices;
• a workpiece repositioning means for receiving a workpiece from one of said plurality of vices and for inserting the received workpiece into another of said plurality of vices, two successive machining operations performed on this workpiece;
• said workpiece repositioning means including a stationary support, a carriage mounted on said stationary support for rotation with respect thereto, first guideway means defined by said carriage, a rest mounted on said carriage for movement in said first guideway means, a head adapted to clamp a workpiece therein, mounted on said rest for rotation about an axis transverse to the axis of rotation of said carriage, whereby a workpiece clamped in said head can be rotated in two different planes, means for rotating said carriage, rotating said head, moving said transport means and said broaching tools mounted thereon, and for effecting stepwise rotation of said multi-position work table, so as to present each of said vices successively to said workpiece loading means, said broaching tools and said workpiece repositioning means.