Automatic centering fixture for workpiece with revolution boss and/or hole

• Main Authors: SHAO XINYU, JIANG XINYA, GONG WENMING, ZHOU BOHUA, SHEN DAWEI, WU SHENG, ZHANG SANQIANG, YU DAOYUAN, ZHENG JINLAI, CUI HAIBIN
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2012
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; 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; TRANSPORTING

The invention discloses an automatic centering fixture which comprises a base plate, at least one internal clamping device, at least one external clamp and a centering drive device, wherein a plurality of guide rails are radically and uniformly arranged on the base plate; an automatic centering slide block is arranged on each guide rail in a sliding manner; each internal clamping device is fixed on the corresponding automatic centering slide block so as to achieve the centering effect through tightly clamping the workpiece from an inner hole or propping against the workpiece from the outer outline of a revolution boss; the external clamps are radically mounted on the base plate so as to clamp the workpiece from the outer outline of the revolution boss; and the centering drive device is used for driving the automatic centering slide blocks to slide along the guide rails, so as to enable the internal clamping devices to be suitable for inner holes with different diameters and to achieve the clamping of the work