Workpiece rotating appartus and robot system

• Main Author: Kitamura, Ryouji
• Format: Patent
• Language: English
• Published: 12.04.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

A workpiece rotating apparatus including a first rotary positioner and a second rotary positioner which are arranged to face each other in a direction along a substantially horizontal rotation axis, which hold, respectively, one end portion and the other end portion of a long workpiece, and which can rotate the workpiece around the rotation axis, a linear motor which linearly moves the second rotary positioner in a direction along the rotation axis, and a motor controller which controls the linear motor to adjust a position of the second rotary positioner in a direction along the rotation axis, and the motor controller controls the linear motor so that magnitude of force acting on the linear motor from the other end portion of the workpiece via the second rotary positioner becomes equal to or smaller than a predetermined threshold.