DEVICE FOR MACHINING NOTCHES IN HEADREST TUBES

摘要

Device for machining indentations in headrest tubes, comprising a support matrix that holds a tube in order to make indentations in it, positioned on a press that exerts a pressure on said matrix in a vertical direction such that the tube is rigidly secure in the support matrix. In addition, the device has a roller holder in which can turn freely at least one form roller, connected by an arm to a vertical displacement mechanism formed by a motor, an eccentric piece and a connecting rod, such that the roller can move up and down. In addition, a motor is coupled through a spindle to the assembly formed by the support matrix and the press, allowing it to move horizontally.

主权项

1. Device for machining indentations in headrest tubes comprising:
a support matrix (4) that holds a tube (1) to make in it the indentations (2,3), a press (6) that exerts pressure in a vertical direction on the support matrix (4) such that the tube (1) is rigidly held in the support matrix (4), a roller holder (5) in which at least one form roller (8) turns freely, a vertical displacement mechanism for the roller holder (5), that allows said roller holder (5) to move up and down,characterised in that the support matrix (4) performs a horizontal movement towards the roller holder (5) by means of a horizontal displacement mechanism formed by a spindle (12) coupled to the shaft (19) of a motor, the vertical displacement mechanism of the roller holder (5) being formed by an eccentric piece (9) connected concentrically to the shaft of a motor (11) and hinged to a connecting rod (7); in turn, the connecting rod (7) is hinged to the roller holder (5) through an arm (14).