Abstract: A clamping device (1) is disclosed for one or several workpieces (2), especially bodywork parts. The clamping device (1) includes one or several clamps (4) which can be positioned on a clamping table. Several parts can be displaced along at least one axis. The clamps (4) comprise a positioning device (13) and a fixing device (10). The positioning device (13) has a height adjustment system (21) and/or angle adjustment system (22) and/or lateral adjustment system (4b). To allow for stepless adjustment over a wide range the positioning device (13) has a coarse adjustment system (43) and a fine adjustment system (44). The fixing device (10) can be configured as a clamping device (35) and simultaneously include the lateral adjustment system (4b).

Abstract: The present invention pertains to a device for welding and/or cutting, especially for laser welding, with a welding head 7 and with a surrounding holding-down device 6 for pressing on a workpiece 4, 5 . The welding head 7 is fastened to the hand of a manipulator 2 by means of a mounting bracket 9 , wherein the welding device 1 has an equalizing device 13 with an at least uniaxial drag beating 14 for determining and correcting angle errors between the workpiece 4, 5 and the holding-down device 6 . The drag bearing 14 has one or more rails 15 and at least one beating cap 20 with a plurality of rolling bodies 16 arranged between them in an arc. The rails 15 are arranged on the mounting bracket 9, and the beating cap 20 is arranged on the holding-down device 6.

Abstract: The present invention pertains to a process and a device for cleaning parts, in particular glass panes (2) of vehicles to prepare them for subsequent treatment processes, such as application of adhesive, etc. The cleaning device (1) comprises a wiping element in the form of a cleaning band (10) which is moved relative to the part (2) to be treated. The cleaning band is guided in a loop (12) between two rolls (13 and 14) and is brought into contact with the part (2) to be treated, while the cleaning band (10) is wound off section by section and cyclically between or during the cleaning processes. To do so, an additional loop (44) is formed in the area of the loop (12) and fresh band material is wound off of the reserve roll (13). The loop (44) is subsequently eliminated and the used band material is fed to the used-material roll (14).

Abstract: The present invention pertains to a process and a device for cleaning parts, in particular glass panes (2) of vehicles to prepare them for subsequent treatment processes, such as application of adhesive, etc. The cleaning device (1) comprises a wiping element in the form of a cleaning band (10) which is moved relative to the part (2) to be treated. The cleaning band is guided in a loop (12) between two rolls (13 and 14) and is brought into contact with the part (2) to be treated, while the cleaning band (10) is wound off section by section and cyclically between or during the cleaning processes. To do so, an additional loop (44) is formed in the area of the loop (12) and fresh band material is wound off of the reserve roll (13). The loop (44) is subsequently eliminated and the used band material is fed to the used-material roll (14).

Abstract: For the controlled slowdown of a translatory or rotary machine part to arrest same in a predetermined stop position of an entrained load, the part being driven by an electric motor against a countervailing torque, a trial run is used with a constant motor torque (less than the countervailing torque) to determine a deceleration characteristic under conditions duplicating those of a subsequent production run. The deceleration characteristic is registered in the form of discrete positional values detected at successive instants, these values being stored in a memory for consecutive readout at corresponding instants in a production run and comparison with actual load positions to provide an error signal for the adjustment of the motor torque. A specific embodiment serves to control the final position of a rotary workpiece holder in friction welding.

Abstract: A friction-welding machine of the type in which a cylinder arrangement applies pressure to urge two workpieces together upon the rotation of one of the workpieces against the other to prepare the interface for bonding. The cylinder arrangement which applies the welding pressure comprises a main cylinder whose piston acts upon the workpiece through a head formed with an auxiliary cylinder and piston arrangement greatly increasing the working range of the cylinder arrangement.