| 摘要 |
The device for transmission welding of two components (1, 2) along a common ring-shaped contact zone (4) by laser beam (23), where one of both components is transmitted and absorbed for the laser beam, comprises a reception for fixing the absorbent component, an internal clamping jaw (5) with a contact surface for mounting on the transmitting component within the free internal areas of the contact zone, a pressure element with a free interior area greater the expansion of the contact zone, a laser source emitting a laser beam, a beam guide unit, and a beam guide control. The device for transmission welding of two components (1, 2) along a common ring-shaped contact zone (4) by laser beam (23), where one of both components is transmitted and absorbed for the laser beam, comprises a reception for fixing the absorbent component, an internal clamping jaw (5) with a contact surface for mounting on the transmitting component within the free internal areas of the contact zone, a pressure element with a free interior area greater the expansion of the contact zone, a laser source emitting a laser beam, a beam guide unit, and a beam guide control. The pressure element and the internal clamping jaw are directly connected over an external axial bearing, a rotatable stop wheel and an internal axial bearing. The pressing force influencing on the pressure element is transferred to the internal clamping jaw. The stop wheel has a hub, a rim and spokes connected to the hub with the rim. The free internal area of the rim in the top view is greater than the free internal area of the contact zone so that the contact zone is overlaid only by the spokes. The hub is fixed on a shaft that is connected over the internal axial bearing with an area oppositively lying the bearing surface of the internal axial bearing, where the area coincides a rotation axis of the shaft and the surface normal of the area. The rotation axis is placed through center of an area of the mounting surface of the internal clamping jaw. The rim is connected over the external axial bearing with the pressure element and over its circumference with a drive, and a drive control is connected with the drive and is connected with the beam guide control in order to adjust the movement of the laser beam and the stop wheel. The internal axial bearing is a pivot bearing and the external axial bearing is a roller bearing. The pressure element is a U-shaped frame that is held in a device and is guided coaxially to rotation axis. The beam guide unit is robot guided laser welding head or a laser scanner. The pressing force is the weight force of the pressure element. |
